FOREWORD

This wiring diagram manual has been prepared to provide

information on the electrical system of the 2004 CELICA.

Applicable models: ZZT230, 231 Series

For service specifications and repair procedures of the above

models other than those listed in this manual, refer to the
following manuals;

Manual Name Pub. No.

2004 CELICA Repair Manual
Volume 1 RM1066U1
Volume 2 RM1066U2

2004 TOYOTA New Car Features NCF257U

All information in this manual is based on the latest product

information at the time of publication. However, specifications
and procedures are subject to change without notice.

NOTICE
When handling supplemental restraint system components (removal,
installation or inspection, etc.), always follow the direction given in the repair
manuals listed above to prevent accidents and supplemental restraint
system malfunction.

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 A INTRODUCTION
This manual consists of the following 13 sections:

No. Section Description

INDEX Index of the contents of this manual.

A
INTRODUCTION Brief explanation of each section.

HOW TO USE THIS

B Instructions on how to use this manual.
MANUAL

TROUBLE-
C Describes the basic inspection procedures for electrical circuits.
SHOOTING

D ABBREVIATIONS Defines the abbreviations used in this manual.

GLOSSARY OF
E TERMS AND Defines the symbols and functions of major parts.
SYMBOLS

Shows position of the Electronic Control Unit, Relays, Relay Block, etc.
F RELAY LOCATIONS
This section is closely related to the system circuit.

ELECTRICAL Describes position of Parts Connectors, Splice points, Ground points, etc.
G
WIRING ROUTING This section is closely related to the system circuit.

INDEX Index of the system circuits.

Electrical circuits of each system are shown from the power supply through ground
H points. Wiring connections and their positions are shown and classified by code
SYSTEM CIRCUITS according to the connection method. (Refer to the section, ”How to use this manual”).
The ”System Outline” and ”Service Hints” useful for troubleshooting are also contained
in this section.

I GROUND POINT Shows ground positions of all parts described in this manual.

POWER SOURCE
J Describes power distribution from the power supply to various electrical loads.
(Current Flow Chart)

Describes the form of the connectors for the parts appeared in this book.
K CONNECTOR LIST
This section is closely related to the system circuit.

PART NUMBER OF
L Indicates the part number of the connectors used in this manual.
CONNECTORS

OVERALL
M ELECTRICAL Provides circuit diagrams showing the circuit connections.
WIRING DIAGRAM

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 HOW TO USE THIS MANUAL B

This manual provides information on the electrical circuits installed on vehicles by

dividing them into a circuit for each system.

The actual wiring of each system circuit is shown from the point where the power
source is received from the battery as far as each ground point. (All circuit
diagrams are shown with the switches in the OFF position.)

When troubleshooting any problem, first understand the operation of the circuit
where the problem was detected (see System Circuit section), the power source
supplying power to that circuit (see Power Source section), and the ground points
(see Ground Point section). See the System Outline to understand the circuit
operation.

When the circuit operation is understood, begin troubleshooting of the problem

circuit to isolate the cause. Use Relay Location and Electrical Wiring Routing
sections to find each part, junction block and wiring harness connectors, wiring
harness and wiring harness connectors, splice points, and ground points of each
system circuit. Internal wiring for each junction block is also provided for better
understanding of connection within a junction block.
Wiring related to each system is indicated in each system circuit by arrows
(from__, to__). When overall connections are required, see the Overall Electrical
Wiring Diagram at the end of this manual.

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 B HOW TO USE THIS MANUAL
[A] ∗ The system shown here is an EXAMPLE ONLY. It is different to the actual
circuit shown in the SYSTEM CIRCUITS SECTION.

STOP LIGHT
FROM POWER SOURCE SYSTEM (SEE PAGE 66)

,,,,,,,,,,
,,,,,,,,,,
,,,,,,,,,,
,,,,,,,,,,
15A 7. 5A
STOP GAUGE

,,,,,,,,,,
,,,,,,,,,, 4 R-L

,,,,,,,,,,
2
IB

,,,,,,,,,, ,,,,
@@@@
€€€€
ÀÀÀÀ
[B] 1
,,,,,,,,,,
[C]
3 IB

@@@@
€€€€
ÀÀÀÀ
,,,,
7 3C

@@@@
€€€€
ÀÀÀÀ
,,,,
@@@@
€€€€
ÀÀÀÀ
,,,, [G]
@@@@
€€€€
ÀÀÀÀ
,,,,
@@@@
€€€€
ÀÀÀÀ
,,,,

R (W/G)

L (S/D)
W-R

@@@@
€€€€
ÀÀÀÀ
,,,,
15 3C

R-L
4
2
C7
REAR LIGHTS
S6 WARNING LIGHT
STOP LIGHT SW [COMB. METER]
14 IE1 [E] 13
1
[D]
G-W

L (S/D) [H]
G-W
TO ABS ECU I5
[F]

Y-G
G-W

L4
7 8 LIGHT FAILURE SENSOR 4

DELAY
CIRCUIT

2 1 11

[I]
G-R

1 G-R
BV1 B18 [J] [K]
G-R

G-R

(SHIELDED)
[REAR COMB. LIGHT RH]

[REAR COMB. LIGHT LH]

4 4 2
H17
W-B
STOP LIGHT RH

STOP LIGHT RH

[L] HIGH MOUNTED

STOP LIGHT
1

3 3
R7

R6
W-B

W-B

W-B

1 W-B
BV1 B18
W-B

BO [M] BL

50 [N]

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 B
[A] : System Title [I] : Indicates the wiring color.
[B] : Indicates a Relay Block. No shading is used and Wire colors are indicated by an alphabetical code.
only the Relay Block No. is shown to distinguish it B = Black W = White BR = Brown
from the J/B
L = Blue V = Violet SB = Sky Blue
Example: Indicates Relay Block No.1
R = Red G = Green LG = Light Green
[C] : ( ) is used to indicate different wiring and P = Pink Y = Yellow GR = Gray
connector, etc. when the vehicle model, engine
type, or specification is different. O = Orange
[D] : Indicates related system. The first letter indicates the basic wire color and the
second letter indicates the color of the stripe.
[E] : Indicates the wiring harness and wiring harness
connector. The wiring harness with male terminal is Example: L-Y
shown with arrows ( ).
Outside numerals are pin numbers.

L Y
(Blue) (Yellow)
[J] : Indicates a wiring Splice Point (Codes are ”E” for the
Engine Room, ”I” for the Instrument Panel, and ”B”
for the Body).
Female Male ( )

The first letter of the code for each wiring harness

and wiring harness connector(s) indicates the
component’s location, e.g, ”E” for the Engine
Compartment, ”I” for the Instrument Panel and
Surrounding area, and ”B” for the Body and
Surrounding area.
When more than one code has the first and second
letters in common, followed by numbers (e.g, IH1,
IH2), this indicates the same type of wiring harness The Location of splice Point I 5 is indicated by the
and wiring harness connector. shaded section.
[F] : Represents a part (all parts are shown in sky blue). [K] : Indicates a shielded cable.
The code is the same as the code used in parts
position.
[G] : Junction Block (The number in the circle is the J/B
No. and the connector code is shown beside it).
Junction Blocks are shaded to clearly separate
them from other parts. [L] : Indicates the pin number of the connector.
The numbering system is different for female and
male connectors.

,,,,
Example:
Example: Numbered in order Numbered in order
,,,,
,,,,3C indicates from upper left to
lower right
from upper right to
lower left
,,,,
,,,,
that it is inside
Junction Block
,,,,
,,,,
No.3

Female Male
[M] : Indicates a ground point.
[H] : When 2 parts both use one connector in common, The first letter of the code for each ground point(s)
the parts connector name used in the wire routing indicates the component’s location, e.g, ”E” for the
section is shown in square brackets [ ]. Engine Compartment, ”I” for the Instrument Panel
and Surrounding area, and ”B” for the Body and
Surrounding area.
[N] : Page No.

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 B HOW TO USE THIS MANUAL
[O] SYSTEM OUTLINE
Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW.
When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows
through the rear lights warning light to TERMINAL 4 of the light failure sensor.
STOP LIGHT DISCONNECTION WARNING
When the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the current
flowing from TERMINAL 7 of the light failure sensor to TERMINALS 1, 2 changes, so the light failure sensor detects the
disconnection and the warning circuit of the light failure sensor is activated.
As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear lights
warning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the warning
circuit on and holds the warning light on until the ignition SW is turned off.

[P] SERVICE HINTS

S6 STOP LIGHT SW
2-1 : Closed with the brake pedal depressed
L4 LIGHT FAILURE SENSOR
1, 2, 7-GROUND : Approx. 12 volts with the stop light SW on
4, 8-GROUND : Approx. 12 volts with the ignition SW at ON position
11-GROUND : Always continuity

[Q] : PARTS LOCATION

Code See Page Code See Page Code See Page
C7 34 L4 36 R7 37
H17 36 R6 37 S6 35

[R] : RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 18 R/B No.1 (Instrument Panel Left)

@@@
€€€
ÀÀÀ
,,,
,,,
[S] @@@
€€€
ÀÀÀ
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
@@@
€€€
ÀÀÀ
Code See Page Junction Block and Wire Harness (Connector Location)
IB 20 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
3C 22 Instrument Panel Wire and J/B No.3 (Instrument Panel Left Side)

[T] : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE1 42 Floor Wire and Instrument Panel Wire (Left Kick Panel)
BV1 50 Luggage Room Wire and Floor Wire (Luggage Compartment Left)

[U] : GROUND POINTS

Code See Page Ground Points Location

BL 50 Under the Left Quarter Pillar
BO 50 Back Panel Center

[V] : SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I5 44 Cowl Wire B18 50 Luggage Room Wire

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 B

[O] : Explains the system outline.

[P] : Indicates values or explains the function for reference during troubleshooting.

[Q] : Indicates the reference page showing the position on the vehicle of the parts in the system circuit.
Example : Part ”L4” (Light Failure Sensor) is on page 36 of the manual.
∗ The letter in the code is from the first letter of the part, and the number indicates its order in parts

ÁÁ
starting with that letter.
Example : L 4
Parts is 4th in order
Light Failure Sensor

[R] : Indicates the reference page showing the position on the vehicle of Relay Block Connectors in the system circuit.
Example : Connector ”1” is described on page 18 of this manual and is installed on the left side of the instrument
panel.

[S] : Indicates the reference page showing the position on the vehicle of J/B and Wire Harness in the system circuit.
Example : Connector ”3C” connects the Instrument Panel Wire and J/B No.3. It is described on page 22 of this
manual, and is installed on the instrument panel left side.

[T] : Indicates the reference page describing the wiring harness and wiring harness connector (the female wiring
harness is shown first, followed by the male wiring harness).
Example : Connector ”IE1” connects the floor wire (female) and Instrument panel wire (male). It is described on
page 42 of this manual, and is installed on the left side kick panel.

[U] : Indicates the reference page showing the position of the ground points on the vehicle.
Example : Ground point ”BO” is described on page 50 of this manual and is installed on the back panel center.

[V] : Indicates the reference page showing the position of the splice points on the vehicle.
Example : Splice point ”I5” is on the Cowl Wire Harness and is described on page 44 of this manual.

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 B HOW TO USE THIS MANUAL
The ground points circuit diagram shows the connections from all major parts to the respective ground points. When
troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify
the problem ground quickly. The relationship between ground points ( EA , IB and IC shown below) can also be
checked this way.

I GROUND POINT
W-B W-B A W-B HEATER CONTROL
FAN MAIN RELAY 5 CIGARETTE LIGHTER ASSEMBLY

W-B
E3
W-B A HEATER SERVO
FAN MAIN RELAY 5 O/D MAIN SW I6 MOTOR AMPLIFIER

W-B W-B A A
A/C FAN RELAY NO.2 5 E3 CLOCK I6 BLOWER SW

W-B A A W-B
A/C FAN RELAY NO.3 5 E3 PARKING BRAKE SW
J1
W-B JUNCTION

,,,,
RADIATOR FAN MOTOR E3 CONNECTOR

RETRACT CONTROL
RELAY
W-B
E2 ,,,,
,,,,
7
3B
W-B
COMBINATION METER

W-B
E4
,,,,
,,,,
W-B
HORN SW [COMB. SW]

,,,,
RETRACT MOTOR RH

RETRACT MOTOR LH
W-B
E5 ,,,,
,,,,
7 W-B
3C I2
DIMMER SW
[COMB. SW]

FRONT TURN SIGNAL

LIGHT RH
W-B
E4 E4
W-B FRONT SIDE MARKER
LIGHT RH
,,,,
,,,,
1
3D
W-B CRUISE CONTROL
MIRROR SW

,,,,
,,,,
3 W-B

W-B
W-B W-B FRONT SIDE MARKER REMOTE CONTROL
PARKING LIGHT RH E5 3F

,,,,
LIGHT LH MIRROR SW

,,,,
W-B 13 W-B
FRONT TURN SIGNAL W-B BRAKE FLUID LEVEL

,,,,
E4 E6 WARNING SW 3G TURN SIGNAL FLASHER
LIGHT LH

PARKING LIGHT LH
W-B W-B
,,,,
,,,,
5 W-B
3E I2
REAR WINDOW
DEFOGGER SW

DOOR LOCK CONTROL

SW RH
W-B
B4
W-B 2
IA1
W-B
I4
,,,,
,,,,
6
3E I2
LIGHT CONTROL SW
[COMB. SW]
W-B

DOOR KEY LOCK W-B W-B WIPER AND WASHER

SW RH B4 I5 SW [COMB. SW]
W-B

W-B

DOOR LOCK MOTOR W-B W-B UNLOCK WARNING

RH B4 I5 SW
10 EA2
W-B 15
DOOR LOCK CONTROL POWER WINDOW
ID1
W-B

RELAY I5 B5 MASTER SW

POWER WINDOW
B5 CONTROL RELAY
EA
W-B
W-B

BLOWER RESISTOR B5 DOOR KEY LOCK SW LH

W-B W-B 8
ELECTRICAL IDLE−UP DOOR LOCK CONTROL
CUT RELAY (M/T) I4 IB1 I8 B5
SW
W-B
W-B

W-B

A/C AMPLIFIER DOOR LOCK MOTOR LH

W-B (4A-GZE)
I5 FUEL CONTROL SW
4 4
BR W-B 3 W-B
RADIO AND PLAYER 4 4 I5 IC3 WOOFER AMPLIFIER

W-B BR
HEATER RELAY 4 COMBINATION METER

BR 5 BR BR BR
AUTO ANTENNA
MOTOR BA1 4 I3 I3 COMBINATION METER
W-B

BR

BR
FUEL SENDER
4
W-B

IB IC

∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.

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 B
The ”Current Flow Chart” section, describes which parts each power source (fuses, fusible links, and circuit breakers)
transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system
are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully
understood.

J POWER SOURCE (Current Flow Chart)

The chart below shows the route by which current flows from the battery to each electrical source
(Fusible Link, Circuit Breaker, Fuse, etc.) and other parts.

10A ECU-B
Short Pin 2 2
7.5A DOME

15A EFI

Battery 30A AM2 2 Fusible Link Block 6 10A HAZARD

2
20A RADIO NO.1
Starter S2
10A HORN

100A ALT 6 60A ABS 5

Engine Room R/B (See Page 20)

Fuse System Page
ABS 194
ABS and Traction Control 187
20A STOP Cruise Control 180
Electronically Controlled Transmission and A/T Indicator 166
Multiplex Communication System 210
Cigarette Lighter and Clock 214
Combination Meter 230
Headlight 112
10A DOME Interior Light 122
Key Reminder and Seat Belt Warning
Light Auto Turn Off
Theft Deterrent and Door Lock Control
POWER SOURCE
40A DOOR LOCK CB
W 1.25B FL MAIN
W 1 2 W-L
E6 1 1
W

BATTERY
3 EA2 1 EA1 W 7.5A DOME R
I2 1 1
50A MAIN
W

W
B

B W 7 W W
E7 2 2 EB1 I2 I2 1

W
B
W

1
7.5A AM2 W-R 6
B
E7 2 2 EB1
2 1
W-R

15A HAZ-RADIO W
2 TAIL
RELAY
B

INJECTION RELAY I8 4 3
B-O 1 3 W-B 8 4 IGNITION SW
2 2
AM2

AM1

1 1
G-W

B 2 4 B-W
E7 2 2
1 G
ACC
IG2

IG1

STARTER RELAY 15A TAIL G

1
B

B 1 3 W-B
2 2 3 2

B B-W B-Y 20A DEFOG W-R

2 2 4 2
E7 1 1
B

B-Y 15A RAD CIG P-L

1 1

∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.

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 B HOW TO USE THIS MANUAL

K CONNECTOR LIST
I14 I15 [A] I16 J1 J2
DARK GRAY GRAY BLACK

A A A B B D D
1 2 1 2 1 2 A A A A A A B CC CD D
6 7 8

[B]
J3 J4 K1 K2 L1
DARK GRAY

A A A
A B B DD 1
A A A A A 1 2
A A B CC CDD 1 2

L2 L3 L4 M1 M2 M3 [C]
GRAY BLACK

1 2 3 4 5 1 2
1 1 6 7 8 9 101112
2 1 3 45 6 78 1 2
2 3 4

[D]
M4 N1 N2 O1 O2
GRAY GRAY BLACK DARK GRAY

1 2 3 4 1
1 2 3 5 6 1 2 1
7 8 9 10

[A] : Indicates connector to be connected to a part. (The numeral indicates the pin No.)
[B] : Junction Connector
Indicates a connector which is connected to a short terminal.
Junction Connector

Junction connector in this manual include a short terminal which is

connected to a number of wire harnesses. Always perform
inspection with the short terminal installed. (When installing the
wire harnesses, the harnesses can be connected to any position
within the short terminal grouping. Accordingly, in other vehicles,
the same position in the short terminal may be connected to a wire
harness from a different part.)
Wire harness sharing the same short terminal grouping have the
same color.
Same Color
Short Terminal

[C] : Parts Code

The first letter of the code is taken from the first letter of part, and the numbers indicates its order in parts which
start with the same letter.
[D] : Connector Color
Connectors not indicated are milky white in color.

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 B

L PART NUMBER OF CONNECTORS

Code Part Name Part Number Code Part Name Part Number
A1 A/C Ambient Temp. Sensor 90980-1 1070 D4 Diode (Door Courtesy Light) 90980-1 1608

A2 A/C Condenser Fan Motor 90980-1 1237 D5 Diode (Key Off Operation) 90980-10962
A3 A/C Condenser Fan Relay 90980-10940 D6 Diode (Luggage Compartment Light) 90980-1 1608
D7 Door Lock Control Relay 90980-10848

ÁÁ ÁÁ
A/C Triple Pressure SW (A/C Dual and
A4 Single Pressure SW) 90980-10943
D8 Door Courtesy Light LH

ÁÁ ÁÁ
90980-1 1148
[A]
A5 A/T Oil Temp. Sensor [B] [C]1413
90980-1 D9 Door Courtesy Light RH

A6 ABS Actuator 90980-1 1151 D10 Door Courtesy SW LH

90980-1 1097
A7 ABS Actuator 90980-1 1009 D11 Door Courtesy SW RH
A8 ABS Speed Sensor Front LH 90980-10941 D12 Door Courtesy SW Front LH

A9 ABS Speed Sensor Front RH 90980-1 1002 D13 Door Courtesy SW Front RH
90980-1 1156
A10 Airbag Sensor Front LH D14 Door Courtesy SW Rear LH
90980-1 1856
A11 Airbag Sensor Front RH D15 Door Courtesy SW Rear RH

A12 Auto Antenna Motor 90980-1 1194 D16 Door Key Lock and Unlock SW LH
90980-1 1170
90980-1 1194 D17 Door Key Lock and Unlock SW RH

[A] : Part Code

[B] : Part Name
[C] : Part Number
Toyota Part Number are indicated.

Not all of the above part numbers of the connector are established for the supply.

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 C TROUBLESHOOTING
To Ignition SW VOLTAGE CHECK
IG Terminal
(a) Establish conditions in which voltage is present at the check
point.
Example:
Fuse [A] - Ignition SW on
[B] - Ignition SW and SW 1 on
[A] [C] - Ignition SW, SW 1 and Relay on (SW 2 off)
(b) Using a voltmeter, connect the negative lead to a good ground
point or negative battery terminal, and the positive lead to the
SW 1 Voltmeter connector or component terminal.
This check can be done with a test light instead of a voltmeter.
[B]

Relay
[C]

SW 2 Solenoid

CONTINUITY AND RESISTANCE CHECK

(a) Disconnect the battery terminal or wire so there is no voltage
between the check points.
Ohmmeter (b) Contact the two leads of an ohmmeter to each of the check
points.

SW

If the circuit has diodes, reverse the two leads and check
again.
When contacting the negative lead to the diode positive side
and the positive lead to the negative side, there should be
continuity.
Ohmmeter When contacting the two leads in reverse, there should be no
continuity.

Diode

(c) Use a volt/ohmmeter with high impedance (10 kΩ/V

minimum) for troubleshooting of the electrical circuit.
Digital Type Analog Type

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 C
To Ignition SW FINDING A SHORT CIRCUIT
IG Terminal
(a) Remove the blown fuse and disconnect all loads of the fuse.
(b) Connect a test light in place of the fuse.
(c) Establish conditions in which the test light comes on.
Test Light Fuse Case Example:
[A] - Ignition SW on
[B] - Ignition SW and SW 1 on
Short [A] [C] - Ignition SW, SW 1 and Relay on (Connect the
Relay) and SW 2 off (or Disconnect SW 2)
(d) Disconnect and reconnect the connectors while watching the
SW 1 test light.
The short lies between the connector where the test light
Short [B] stays lit and the connector where the light goes out.
Disconnect (e) Find the exact location of the short by lightly shaking the
Disconnect problem wire along the body.

Light Relay CAUTION:

(a) Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are touched,
Short [C] the IC may be destroyed by static electricity.)
(b) When replacing the internal mechanism (ECU part) of
the digital meter, be careful that no part of your body or
Disconnect clothing comes in contact with the terminals of leads
from the IC, etc. of the replacement part (spare part).
SW 2 Solenoid

DISCONNECTION OF MALE AND FEMALE

CONNECTORS
To pull apart the connectors, pull on the connector itself, not
the wire harness.
HINT : Check to see what kind of connector you are
disconnecting before pulling apart.

Pull Up Pull Up

Press Down Press Down

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 C TROUBLESHOOTING
Reference: HOW TO REPLACE TERMINAL
(with terminal retainer or secondary locking device)
10 1. PREPARE THE SPECIAL TOOL

3 1 HINT : To remove the terminal from the connector, please

construct and use the special tool or like object shown on
the left.
2. DISCONNECT CONNECTOR
0.2
1 (mm)

Example: 3. DISENGAGE THE SECONDARY LOCKING DEVICE OR

Up Tool
(Case 1) TERMINAL RETAINER.

(a) Locking device must be disengaged before the terminal

locking clip can be released and the terminal removed from
the connector.
(b) Use a special tool or the terminal pick to unlock the secondary
locking device or terminal retainer.
NOTICE:
Do not remove the terminal retainer from connector body.
Terminal Retainer
[A] For Non-Waterproof Type Connector
Terminal Retainer HINT : The needle insertion position varies according to the
connector’s shape (number of terminals etc.), so
check the position before inserting it.

”Case 1”
Raise the terminal retainer up to the temporary lock
[Retainer at Full Lock Position] position.

Terminal
Stopper Retainer

[Retainer at Temporary Lock Position]

”Case 2”
Open the secondary locking device.
Example: Secondary
(Case 2) Locking Device

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 C
Tool
Tab

Tab

Example: [B] For Waterproof Type Connector

Terminal
(Case 1) Tool
Retainer HINT : Terminal retainer color is different
according to connector body.
Example:
Terminal Retainer : Connector Body
Black or White : Gray
Black or White : Dark Gray
Tool Access Hole
Gray or White : Black
[Male] ( Mark) [Female]

”Case 1”
Type where terminal retainer is pulled
up to the temporary lock position (Pull
Type).
Insert the special tool into the terminal
retainer access hole (
Mark) and pull
the terminal retainer up to the
temporary lock position.
HINT : The needle insertion position varies
Retainer according to the connector’s shape
at Full Lock Position (Number of terminals etc.), so check
the position before inserting it.

Retainer
at Temporary Lock Position
[Male] [Female]
”Case 2”
Type which cannot be pulled as far as
Example: Terminal Retainer Power Lock insert the tool straight into
(Case 2) the access hole of terminal retainer as
shown.

Tool Tool

Press Down
[Male] Press Down [Female]

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 C TROUBLESHOOTING
Push the terminal retainer down to the temporary lock position.

Retainer at
Full Lock Position

Retainer at
Temporary Lock Position
[Male] [Female]

Locking Lug (c) Release the locking lug from terminal and pull the terminal out
from rear.

Tool

4. INSTALL TERMINAL TO CONNECTOR

(a) Insert the terminal.

HINT:
1. Make sure the terminal is positioned correctly.
2. Insert the terminal until the locking lug locks firmly.
3. Insert the terminal with terminal retainer in the temporary lock
position.

(b) Push the secondary locking device or terminal retainer in to

the full lock position.
5. CONNECT CONNECTOR

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 ABBREVIATIONS D
ABBREVIATIONS
The following abbreviations are used in this manual.

A/C = Air Conditioning

A/T = Automatic Transaxle
ABS = Anti-Lock Brake System
ACIS = Acoustic Control Induction System
COMB. = Combination
ECU = Electronic Control Unit
ESA = Electronic Spark Advance
EVAP = Evaporative Emission
FL = Fusible Link
HID = High Intensity Discharge
IC = Integrated Circuit
J/B = Junction Block
LH = Left-Hand
M/T = Manual Transaxle
MPX = Multiplex
O/D = Overdrive
R/B = Relay Block
RH = Right-Hand
SFI = Sequential Multiport Fuel Injection
SRS = Supplemental Restraint System
SW = Switch
TEMP. = Temperature
VSV = Vacuum Switching Valve
VVL = Variable Valve Lift
VVT = Variable Valve Timing
VVTL = Variable Valve Timing and Lift
w/ = With
w/o = Without

∗ The titles given inside the components are the names of the terminals (terminal codes) and are not treated as being
abbreviations.

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 E GLOSSARY OF TERMS AND SYMBOLS
BATTERY GROUND
Stores chemical energy and The point at which wiring attaches to
converts it into electrical energy. the Body, thereby providing a return
Provides DC current for the auto’s path for an electrical circuit; without a
various electrical circuits. ground, current cannot flow.

CAPACITOR (Condenser) HEADLIGHTS

A small holding unit for temporary Current flow causes a headlight
storage of electrical voltage. 1. SINGLE
FILAMENT filament to heat up and emit light. A
headlight may have either a single
(1) filament or a double (2) filament

CIGARETTE LIGHTER
An electric resistance heating 2. DOUBLE
element. FILAMENT

CIRCUIT BREAKER HORN

Basically a reusable fuse, a circuit An electric device which sounds a
breaker will heat and open if too loud audible signal.
much current flows through it.
Some units automatically reset when
cool, others must be manually reset.

DIODE IGNITION COIL

A semiconductor which allows Converts low-voltage DC current
current flow in only one direction. into high-voltage ignition current for
firing the spark plugs.

DIODE, ZENER LIGHT

A diode which allows current flow in one Current flow through a filament
direction but blocks reverse flow only up causes the filament to heat up and
to a specific voltage. Above that potential, emit light.
it passes the excess voltage. This acts as
a simple voltage regulator.

PHOTODIODE LED (LIGHT EMITTING DIODE)

The photodiode is a semiconductor Upon current flow, these diodes emit
which controls the current flow light without producing the heat of a
according to the amount of light. comparable light.

DISTRIBUTOR, IIA METER, ANALOG

Channels high-voltage current from Current flow activates a magnetic
the ignition coil to the individual coil which causes a needle to move,
spark plugs. thereby providing a relative display
against a background calibration.

FUSE METER, DIGITAL

A thin metal strip which burns through Current flow activates one or many
when too much current flows through it, LED’s, LCD’s, or fluorescent
FUEL
thereby stopping current flow and displays, which provide a relative or
protecting a circuit from damage. digital display.
FUSIBLE LINK
(for Medium Current Fuse) A heavy-gauge wire placed in high
amperage circuits which burns through on MOTOR
overloads, thereby protecting the circuit. A power unit which converts
The numbers indicate the crosssection M
electrical energy into mechanical
surface area of the wires. energy, especially rotary motion.
(for High Current Fuse or
Fusible Link)

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 E
RELAY SPEAKER
Basically, an electrically operated An electromechanical device which
1. NORMALLY switch which may be normally creates sound waves from current
CLOSED closed (1) or open (2). flow.
Current flow through a small coil
creates a magnetic field which either
opens or closes an attached switch.
2. NORMALLY SWITCH, MANUAL
OPEN Opens and closes
circuits,
i it thereby
th b
1. NORMALLY stopping (1) or
OPEN allowing (2) current
flow.
RELAY, DOUBLE THROW
A relay which passes current 2. NORMALLY
through one set of contacts or the CLOSED
other.

RESISTOR SWITCH, DOUBLE THROW

An electrical component with a fixed A switch which continuously passes
resistance, placed in a circuit to current through one set of contacts
reduce voltage to a specific value. or the other.

RESISTOR, TAPPED SWITCH, IGNITION

A resistor which supplies two or A key operated switch with several
more different non adjustable positions which allows various
resistance values. circuits, particularly the primary
ignition circuit, to become
operational.

RESISTOR, VARIABLE or RHEOSTAT

A controllable resistor with a variable
rate of resistance.
Also called a potentiometer or
rheostat.

SENSOR (Thermistor) SWITCH, WIPER PARK

A resistor which varies its resistance Automatically returns wipers to the
with temperature. stop position when the wiper switch
is turned off.

SENSOR, SPEED TRANSISTOR

Uses magnetic impulses to open A solidstate device typically used as
and close a switch to create a signal an electronic relay; stops or passes
for activation of other components. current depending on the voltage
(Reed Switch Type) applied at ”base”.

SHORT PIN
WIRES
Used to provide an unbroken
Wires are always drawn as
connection within a junction block. (1) NOT straight lines on wiring
CONNECTED diagrams.
Crossed wires (1) without a
black dot at the junction
j are
nott joined;
j i d
SOLENOID crossed wires (2) with a
An electromagnetic coil which forms black dot or octagonal ( )
a magnetic field when current flows, (2) SPLICED mark at the junction are
to move a plunger, etc. spliced (joined)
connections.

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 F RELAY LOCATIONS
[Engine Compartment]

[Instrument Panel]

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 F
[Body]

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 F RELAY LOCATIONS
,,,
,,,
,,,: Engine Room J/B Engine Compartment Left (See Page 20)

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 F
(Inner Circuit : See Page 28)

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 F RELAY LOCATIONS
,,,
,,,
,,,: Instrument Panel J/B Instrument Panel Brace RH (See Page 21)

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 F
(Inner Circuit : See Page 30)

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 F RELAY LOCATIONS
1 : Engine Room R/B No.1
,,,
,,, Engine Compartment Left (See Page 20)
,,,: Engine Room J/B No.1

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 F
2 : Engine Room R/B No.2 Engine Compartment Left (See Page 20)

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 F RELAY LOCATIONS
[Engine Room J/B Inner Circuit]

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 F

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 F RELAY LOCATIONS
[Instrument Panel J/B Inner Circuit]

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 F

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 G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[1ZZ-FE]

A 1 A/C Condenser Fan Motor F 1 Front Airbag Sensor LH

A 2 A/C Magnetic Clutch and Lock Sensor F 2 Front Airbag Sensor RH
A 3 A/C Triple Pressure SW F 3 Front Fog Light LH
(A/C Dual and Single Pressure SW) F 4 Front Fog Light RH
A 6 ABS Speed Sensor Front LH F 5 Front Parking Light LH
A 7 ABS Speed Sensor Front RH F 6 Front Parking Light RH
A 20 Ambient Temp. Sensor F 7 Front Side Marker Light LH
F 8 Front Side Marker Light RH
B 1 Back-Up Light SW F 9 Front Turn Signal Light LH
B 2 Brake Fluid Level Warning SW F 10 Front Turn Signal Light RH
F 11 Front Wiper Motor
C 1 Camshaft Position Sensor
C 3 Camshaft Timing Oil Control Valve (VVT) G 1 Generator
C 4 Crankshaft Position Sensor G 2 Generator
C 5 Cruise Control Actuator
H 1 Headlight LH (High)
D 9 Daytime Running Light Resistor H 2 Headlight LH (Low)
H 3 Headlight RH (High)
E 1 Electronically Controlled Transmission Solenoid H 4 Headlight RH (Low)
E 2 Engine Control Module H 5 Horn (High)
E 3 Engine Control Module H 6 Horn (Low)
E 4 Engine Control Module H 11 Headlight Beam Level Control Actuator LH
E 5 Engine Control Module H12 Headlight Beam Level Control Actuator RH
E 6 Engine Coolant Temp. Sensor H13 Headlight Control ECU LH
H14 Headlight Control ECU RH

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 G
Position of Parts in Engine Compartment
[1ZZ-FE]

I 1 Idle Air Control Valve P 1 Park/Neutral Position SW

I 2 Ignition Coil and Igniter No.1 P 2 Power Steering Oil Pressure SW
I 3 Ignition Coil and Igniter No.2
I 4 Ignition Coil and Igniter No.3 R 1 Radiator Fan Motor
I 5 Ignition Coil and Igniter No.4
I 6 Injector No.1 S 1 Starter
I 7 Injector No.2 S 2 Starter
I 8 Injector No.3 S 11 Skid Control ECU with Actuator
I 9 Injector No.4
T 1 Throttle Position Sensor
J 1 Junction Connector
J 2 Junction Connector V 1 Vehicle Speed Sensor (Combination Meter)
V 2 Vehicle Speed Sensor
K 1 Knock Sensor (Electronically Controlled Transmission)
V 3 VSV (ACIS)
M 1 Mass Air Flow Meter V 4 VSV (Canister Closed Valve)
V 5 VSV (EVAP)
N 1 Noise Filter (Ignition System)
W 1 Washer Motor
O 2 Oil Pressure SW

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 G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[2ZZ-GE]

A 1 A/C Condenser Fan Motor F 1 Front Airbag Sensor LH

A 2 A/C Magnetic Clutch and Lock Sensor F 2 Front Airbag Sensor RH
A 3 A/C Triple Pressure SW F 3 Front Fog Light LH
(A/C Dual and Single Pressure SW) F 4 Front Fog Light RH
A 6 ABS Speed Sensor Front LH F 5 Front Parking Light LH
A 7 ABS Speed Sensor Front RH F 6 Front Parking Light RH
A 18 Air Pump Motor F 7 Front Side Marker Light LH
A 19 Air Pump Relay F 8 Front Side Marker Light RH
A 20 Ambient Temp. Sensor F 9 Front Turn Signal Light LH
A 22 Air Pump Pressure Sensor F 10 Front Turn Signal Light RH
F 11 Front Wiper Motor
B 1 Back-Up Light SW
B 2 Brake Fluid Level Warning SW G 1 Generator
G 2 Generator
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve (VVL) H 1 Headlight LH (High)
C 3 Camshaft Timing Oil Control Valve (VVT) H 2 Headlight LH (Low)
C 4 Crankshaft Position Sensor H 3 Headlight RH (High)
H 4 Headlight RH (Low)
D 9 Daytime Running Light Resistor H 5 Horn (High)
H 6 Horn (Low)
E 1 Electronically Controlled Transmission Solenoid H 11 Headlight Beam Level Control Actuator LH
E 6 Engine Coolant Temp. Sensor H12 Headlight Beam Level Control Actuator RH
E 7 Oil Pressure SW (VVTL) H13 Headlight Control ECU LH
E 8 Engine Control Module H14 Headlight Control ECU RH
E 9 Engine Control Module
E 10 Engine Control Module
E 11 Engine Control Module
E 12 Engine Control Module

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 G
Position of Parts in Engine Compartment
[2ZZ-GE]

I 2 Ignition Coil and Igniter No.1 P 1 Park/Neutral Position SW

I 3 Ignition Coil and Igniter No.2 P 2 Power Steering Oil Pressure SW
I 4 Ignition Coil and Igniter No.3
I 5 Ignition Coil and Igniter No.4 R 1 Radiator Fan Motor
I 6 Injector No.1
I 7 Injector No.2 S 1 Starter
I 8 Injector No.3 S 2 Starter
I 9 Injector No.4 S 11 Skid Control ECU with Actuator

J 1 Junction Connector T 1 Throttle Position Sensor

J 2 Junction Connector
V 1 Vehicle Speed Sensor (Combination Meter)
K 1 Knock Sensor V 2 Vehicle Speed Sensor
(Electronically Controlled Transmission)
M 1 Mass Air Flow Meter V 3 VSV (ACIS)
V 4 VSV (Canister Closed Valve)
N 1 Noise Filter (Ignition System) V 5 VSV (EVAP)
V 8 VSV (Air Pump)
O 1 O/D Direct Clutch Speed Sensor
O 2 Oil Pressure SW W 1 Washer Motor

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 G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel

A 8 A/C Evaporator Temp. Sensor C 6 Center Airbag Sensor Assembly

A 9 A/C SW C 7 Center Airbag Sensor Assembly
A 12 Airbag Squib (Front Passenger Airbag Assembly) C 8 Center Airbag Sensor Assembly
A 13 Airbag Squib (Steering Wheel Pad) C 9 Cigarette Lighter
A 14 Automatic Light Control Sensor C10 Clock
A 17 Acceletator Pedal Position Sensor C 11 Clutch Start SW
C12 Combination Meter
B 3 Blower Motor C13 Combination Meter
B 4 Blower Resistor C14 Combination SW
B 5 Blower SW C15 Combination SW
B 6 Body ECU C16 Combination SW
B 7 Body ECU C17 Cruise Control Clutch SW
B 8 Buckle SW LH C18 Cruise Control ECU
B 9 Buckle SW RH
D 1 Data Link Connector 3

F 12 Front Fog Light Relay

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 G
Position of Parts in Instrument Panel

G 3 Glove Box Light and SW P 3 Parking Brake SW

P 4 Power Window Lock SW
H 7 Hazard SW P 5 Power Window Master SW
H 8 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 9 Heated Oxygen Sensor (Bank 1 Sensor 2) R 2 Radio and Player
H15 Headlight Beam Level Control SW R 3 Radio and Player
R 4 Radio and Player
I 10 Ignition SW R 5 Rheostat

J 3 Junction Connector S 3 Shift Lock Control ECU

J 4 Junction Connector S 4 Side Airbag Squib LH
J 5 Junction Connector S 5 Side Airbag Squib RH
J 6 Junction Connector S 6 Stereo Component Amplifier
J 7 Junction Connector S 7 Stereo Component Amplifier
J 8 Junction Connector S 8 Stop Light SW
J 9 Junction Connector
J 10 Junction Connector T 2 Turn Signal Flasher Relay

O 3 O/D Main SW U 1 Unlock Warning SW

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 G ELECTRICAL WIRING ROUTING
Position of Parts in Body

A 15 ABS Speed Sensor Rear LH F 13 Front Door Speaker LH

A 16 ABS Speed Sensor Rear RH F 14 Front Door Speaker RH
A 21 Auto Antenna Control Relay F 15 Front Door Tweeter Speaker LH
F 16 Front Door Tweeter Speaker RH
B 10 Back Door Lock Motor F 17 Fuel Sender and Pump

D 2
Door Control Receiver H10 High Mounted Stop Light
D 3
Door Courtesy SW LH
D 4
Door Courtesy SW RH J 11 Junction Connector
D 5
Door Lock Motor , Door Lock Detection SW and J 12 Junction Connector
Door Key Lock and Unlock SW LH J 13 Junction Connector
D 6 Door Lock Motor , Door Lock Detection SW and J 14 Junction Connector
Door Key Lock and Unlock SW RH
D 7 Door Side Airbag Sensor LH L 1 License Plate Light LH
D 8 Door Side Airbag Sensor RH L 2 License Plate Light RH
L 3 Luggage Compartment Light
L 4 Luggage Compartment Light SW

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 G
Position of Parts in Body

M 2 Moon Roof Control Relay and Motor S 9 Side Airbag Sensor LH

M 3 Moon Roof Control SW and Personal Light S 10 Side Airbag Sensor RH

N 2 Noise Filter (Rear Window Defogger) T 3 Tension Reducer Solenoid LH

T 4 Tension Reducer Solenoid RH
P 6 Personal Light (w/o Moon Roof)
P 7 Power Window Motor LH V 6 Vapor Pressure Sensor
P 8 Power Window Motor RH V 7 VSV (Pressure Switching Valve)
P 9 Pretensioner LH
P 10 Pretensioner RH

R 6 Rear Combination Light LH

R 7 Rear Combination Light RH
R 8 Rear Speaker LH
R 9 Rear Speaker RH
R10 Rear Window Defogger
R 11 Rear Window Defogger
R12 Rear Wiper Motor and Relay
R13 Remote Control Mirror LH
R14 Remote Control Mirror RH
R15 Remote Control Mirror SW

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 G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
[1ZZ-FE]

: Location of Splice Points

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 G
Connector Joining Wire Harness and Wire Harness
EA1 EA2

1 2 3 4 5 6 6 5 4 3 2 1 1 2 2 1
7 8 9 10 11 12 13 14 14 13 12 11 10 9 8 7 3 4 5 6 7 7 6 5 4 3

EB1
DARK GRAY GRAY

1 1

Code Joining Wire Harness and Wire Harness (Connector Location)

EA1
Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
EA2
EB1 Engine No.4 Wire and Engine Wire (Under the Intake Manifold)

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 G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
[2ZZ-GE]

: Location of Splice Points

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 G
Connector Joining Wire Harness and Wire Harness
EA1 EA2

1 2 3 4 5 6 6 5 4 3 2 1 1 2 2 1
7 8 9 10 11 12 13 14 14 13 12 11 10 9 8 7 3 4 5 6 7 7 6 5 4 3

EA3 EC1 BLACK

1 1

1 2 3 4 5 5 4 3 2 1
6 7 8 9 10 11 12 13 13 12 11 10 9 8 7 6

Code Joining Wire Harness and Wire Harness (Connector Location)

EA1
EA2 Engine
g Wire and Engine
g Room Main Wire (Inside
( of Engine
g Room R/B No.1))
EA3
EC1 Engine Room Main Wire and Engine Wire (Inside of Engine Room R/B No.1)

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 G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness

: Location of Ground Points

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 G
Connector Joining Wire Harness and Wire Harness

Code Joining Wire Harness and Wire Harness (Connector Location)

IA1
IA2 Front Door LH Wire and Instrument Panel Wire (Left
( Kick Panel))
IA3
IB1 Roof Wire and Instrument Panel Wire (Left Kick Panel)
IC1 Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH)
ID1 Cowl No.2 Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE1
IE2
IE3 Engine
g Room Main Wire and Instrument Panel Wire (Instrument
( Panel Brace LH))
IE4
IE5

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 G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness

: Location of Splice Points

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 G
Connector Joining Wire Harness and Wire Harness

Code Joining Wire Harness and Wire Harness (Connector Location)

IF1
Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IF2
IG1
IG3
Engine Room No.2
No 2 Wire and Instrument Panel Wire (Right Kick Panel)
IG4
IG5
IH1
IH2 Front Door RH Wire and Instrument Panel Wire (Right
( g Kick Panel))
IH3
II2 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

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 G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points

: Location of Splice Points

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 G
Connector Joining Wire Harness and Wire Harness
BA1 BA2

1 2 2 1 1 2 2 1
3 4 5 6 7 7 6 5 4 3 3 4 5 6 7 7 6 5 4 3
8 9 10 11 12
12 11 10 9 8

BB1 BB2

12 3 3 21 1 2
2 1
456 78 8 7 654 3 4 5 6 6 5 43

Code Joining Wire Harness and Wire Harness (Connector Location)

BA1
Back Door No.1
No 1 Wire and Floor Wire (Quarter Panel LH)
BA2
BB1
Back Door No.2
No 2 Wire and Back Door No.1
No 1 Wire (Back Door Upper Left)
BB2

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 MEMO

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 POWER SOURCE

15A AUTO ANTENNA

1 2 1 2

50A ABS NO. 1 30A DEF

1 2
15A FR FOG

30A RDI
20A DOOR
1 2
10A HAZ
7. 5A OBD
30A CDS
15A IG2
1 2 15A S/ROOF

10A HORN
50A HTR 20A FR P/W

7. 5A ALT- S
25A ABS NO. 2 20A FL P/W
1 1 5
1 2 B- R W
2E IA IK
25A AM1
120A ALT
16 9 11
B- R B- R
2F IC IK
7. 5A AM2
7 2
L- R
2F IC
25A DCC 15A RADIO
1 2A
1
B 2
2I
7. 5A DOME
B 1
B

20A EFI 7. 5A ECU- B

B 6

10A EFI NO. 1 7. 5A MPX- B

5 3

10A EFI NO. 2 1

1 2 W- R
1 2 1A 1
B- R

EFI RELAY 10A ETCS

7. 5A HEAD LVL 1 2 B- R
DRL NO. 1 1

10A HEAD LH UPR 50A A- AMP

5 3
1
B- W B- W
15A HEAD LH LWR IE1
1 2

15A HEAD RH LWR

HEAD RELAY 11
FL MAIN

2D
3. 0W

20A HEAD RH UPR 1 2 W- B

1 1

4
1 2 L 5 3 B
2H 1 1
(*2)

ST RELAY
R

40A MAIN

1
L 2 1 L- W
2H 2 2
(* 1)
BATTERY
3 5 W- L
(* 2)
R

DRL NO. 2
2 DIMMER RELAY
5
L
2H
(* 1)

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 10A STOP
5 3

10A TAIL
2 1 D 6
* 1 : W/O HID
* 2 : W/ HID 7. 5A PANEL 1
TAIL RELAY
D 5

7. 5A PANEL 2
IG1 RELAY
5 3

7. 5A SRS- IG
8
1 2 C 6
IK
5A BK/UP LP
C 1
12
II 5A TENS RDC
C 5

5A DEF RLY
ACC 3 GR
W- B

C 2
W 1 AM1 IG1 2 L- R
5A BODY ECU- IG
A 6

B- R 5A WARNING
5 AM2 IG2 A 1

5A FAN RLY
ST2 4 B- W
A 2

5A ABS- IG
I10
IGNITION SW A 5

5A ECU- IG

7. 5A TURN

10A HTR

25A WIPER

15A WASHER

15A RR WIPER

12
B- W GR
IK
15A CIG
D 2

7. 5A ECU- ACC

3
B
2H
7. 5A ST
1 2
W- B

10A HEAD RH UPR

W- L 1 2
2

10A HEAD LH UPR

IF

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 POWER SOURCE
SERVICE HINTS
HEAD RELAY
5-3 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position
Closed with the engine running and the parking brake lever released (Parking brake SW off)
TAIL RELAY
5-3 : Closed with the light control SW at TAIL or HEAD position
I10 IGNITION SW
1-3 : Closed with the ignition key at ACC or ON position
1-2 : Closed with the ignition key at ON or ST position
5-4 : Closed with the ignition key at ST position

: PARTS LOCATION
Code See Page Code See Page Code See Page
I10 37

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 26 Engine Room R/B No.1 (Engine Compartment Left)
2 27 Engine Room R/B No.2 (Engine Compartment Left)
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IA
25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IC
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
1A 26 Engine Room Main Wire and Engine Room J/B No.1 (Engine Compartment Left)
2A 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2D
2E
2F 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H
2I

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE1 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH

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 MEMO

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 STARTING AND IGNITION (1ZZ-FE)

4 6
B- R 5 AM2 IG2 6 B- O B- O B- O
IK IC
ST2 4

B- W
I10
IGNITION SW

1 IE1 4 EA1

B- W
B- W

1 IE4
11 IK 1 1

B- W
5 1

W- B
(A/T)
9 IC ST
RELAY 3 IC1

3 2
(M/T)
W- B
B- R

(M/T)
B- W
1 1
W- B
B

PARK/NEUTRAL

CLUTCH START
6 1
POSITION SW

P
16 2F 4 2H 3 2H

W- B
(A/T)
N C11

SW
2
P1

9 2
7. 5A 40A
(M/T)
W- B
AM2 MAIN
(A/T)
B

7. 5A
ST
1

6 IC1
1 2A 1 2B 20 2F
W- B

14 EA1
W- B
B- R

FL MAIN L
3. 0W

B- R B

1 A
W- B

S1 A , S2 B
BATTERY
B- R 1 STARTER
B M A
J3
JUNCTION
CONNECTOR

IE

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52)

15A
IG2

B- O

11 2C 23 2C 31 2C 25 2C 30 2C 24 2C 13 2C 26 2C 12 2C 32 2C
14 2F

1 5

B- Y

B- Y

B- Y

B- Y

B- Y
IG2
B

B
RELAY

2 3

7 2H 4 2G
(IGNITION SYSTEM)

1 1 2 1 2 1 2 1 2
W- B

W- B

NOISE FILTER

2
N1

IGNITION COIL AND

IGNITION COIL AND

IGNITION COIL AND

IGNITION COIL AND

IGNITER NO. 1

IGNITER NO. 2

IGNITER NO. 3

IGNITER NO. 4
W- B

I2

I3

I4

I5
4 3 4 3 4 3 4 3
R- W
W- B

W- B

W- B

W- B
G- R
R- B

R- Y
C
C

C W- B
CONNECTOR

C W- B
JUNCTION

C W- B
J2

L
R- W

G- R
R- B

R- Y

B- Y
L

11 B 10 D 11 D 12 D 13 D 25 D
W- B

W- B

W- B

STA IGT1 IGT2 IGT3 IGT4 IGF

E3 B , E5 D
ENGINE CONTROL MODULE

EB EM EC

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 STARTING AND IGNITION (1ZZ-FE)
SERVICE HINTS
I10 IGNITION SW
5-6 : Closed with the ignition SW at ON or ST position
5-4 : Closed with the ignition SW at ST position
C11 CLUTCH START SW (M/T)
1-2 : Closed with the clutch pedal fully depressed
ST RELAY
5-3 : Closed with the clutch start SW on (M/T), Park/Neutral position SW on (A/T) and the ignition SW at ST position
S1 (A), S2 (B) STARTER
Points closed with the clutch start SW on and the ignition SW at ST position (M/T)
Points closed with the Park/Neutral position SW at P or N position and the ignition SW at ST position (A/T)
P1 PARK/NEUTRAL POSITION SW (A/T)
6-9 : Closed with the A/T shift lever at P or N position

: PARTS LOCATION
Code See Page Code See Page Code See Page
C11 36 I4 33 (1ZZ-FE) N1 33 (1ZZ-FE)
E3 B 32 (1ZZ-FE) I5 33 (1ZZ-FE) P1 33 (1ZZ-FE)
E5 D 32 (1ZZ-FE) I10 37 S1 A 33 (1ZZ-FE)
I2 33 (1ZZ-FE) J2 33 (1ZZ-FE) S2 B 33 (1ZZ-FE)
I3 33 (1ZZ-FE) J3 37

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 26 Engine Room R/B No.1 (Engine Compartment Left)
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IC 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2A
2B 23 Engine
g Wire and Engine
g Room J/B ((Engine
g Compartment Left))
2C
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1 40 (1ZZ-FE) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
IC1 44 Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH)
IE1
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE4

: GROUND POINTS

Code See Page Ground Points Location

EB 40 (1ZZ-FE) Front Left Fender
EC 40 (1ZZ-FE) Cylinder Head Cover LH
EM 40 (1ZZ-FE) Front Left Fender
IE 44 Cowl Side Panel LH

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 MEMO

59
2004 CELICA (EWD538U)

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 STARTING AND IGNITION (2ZZ-GE)

J6
JUNCTION
CONNECTOR
4 6
B- R 5 AM2 IG2 6 B- O C C B- O B- O
IK IC
ST2 4

B- W
I10
IGNITION SW

1 IE1 4 EA1

B- W
B- W

1 IE4
11 IK 1 1

B- W
5 1

W- B
(A/T)
9 IC ST
RELAY 3 IC1

3 2
(M/T)
W- B
B- R

(M/T)
B- W
1 1
W- B
B

PARK/NEUTRAL

CLUTCH START
6 1
POSITION SW

P
16 2F 4 2H 3 2H

W- B
(A/T)
N C11

SW
2
P1

9 2
7. 5A 40A
(M/T)
W- B
AM2 MAIN
(A/T)
B

7. 5A
ST
1

6 IC1
1 2A 1 2B 20 2F
W- B

14 EA1
W- B
B- R

FL MAIN L
3. 0W

B- R B

1 A
W- B

S1 A , S2 B
BATTERY
B- R 1 STARTER
B M A
J3
JUNCTION
CONNECTOR

IE

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52)

15A
IG2

B- O

11 2C 23 2C 31 2C 25 2C 30 2C 24 2C 13 2C 26 2C 12 2C 32 2C
14 2F

1 5

B- Y

B- Y

B- Y

B- Y

B- Y
IG2
B

B
RELAY

2 3

7 2H 4 2G
(IGNITION SYSTEM)

1 1 2 1 2 1 2 1 2
W- B

W- B

NOISE FILTER

2
N1

IGNITION COIL AND

IGNITION COIL AND

IGNITION COIL AND

IGNITION COIL AND

IGNITER NO. 1

IGNITER NO. 2

IGNITER NO. 3

IGNITER NO. 4
W- B

I2

I3

I4

I5
4 3 4 3 4 3 4 3
GR- R
W- B

W- B

W- B

W- B
R- G

G- R

R- Y

W- B W- B W- B
E1 E1 E1 E1

11
L
EA3
GR- R

G- R
R- G

R- Y

B- Y
L

9 H 8 G 9 G 10 G 11 G 24 G
W- B

W- B

W- B

STA IGT1 IGT2 IGT3 IGT4 IGF

E10 G , E11 H
ENGINE CONTROL MODULE

EB EM EC

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 STARTING AND IGNITION (2ZZ-GE)
SERVICE HINTS
I10 IGNITION SW
5-6 : Closed with the ignition SW at ON or ST position
5-4 : Closed with the ignition SW at ST position
C11 CLUTCH START SW (M/T)
1-2 : Closed with the clutch pedal fully depressed
ST RELAY
5-3 : Closed with the clutch start SW on (M/T), Park/Neutral position SW on (A/T) and the ignition SW at ST position
S1 (A), S2 (B) STARTER
Points closed with the clutch start SW on and the ignition SW at ST position (M/T)
Points closed with the Park/Neutral position SW at P or N position and the ignition SW at ST position (A/T)
P1 PARK/NEUTRAL POSITION SW (A/T)
6-9 : Closed with the A/T shift lever at P or N position

: PARTS LOCATION
Code See Page Code See Page Code See Page
C11 36 I4 35 (2ZZ-GE) N1 35 (2ZZ-GE)
E10 G 34 (2ZZ-GE) I5 35 (2ZZ-GE) P1 35 (2ZZ-GE)
E11 H 34 (2ZZ-GE) I10 37 S1 A 35 (2ZZ-GE)
I2 35 (2ZZ-GE) J3 37 S2 B 35 (2ZZ-GE)
I3 35 (2ZZ-GE) J6 37

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 26 Engine Room R/B No.1 (Engine Compartment Left)
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IC 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2A
2B 23 Engine
g Wire and Engine
g Room J/B ((Engine
g Compartment Left))
2C
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
42 (2ZZ-GE)
(2ZZ GE) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
EA3
IC1 44 Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH)
IE1
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE4

: GROUND POINTS

Code See Page Ground Points Location

EB 42 (2ZZ-GE) Front Left Fender
EC 42 (2ZZ-GE) Cylinder Head Cover LH
EM 42 (2ZZ-GE) Front Left Fender
IE 44 Cowl Side Panel LH

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 : SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 42 (2ZZ-GE) Engine Room Main Wire

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 CHARGING

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

5A 7. 5A
WARNING ALT- S

1 2C

11 IM 13 IB
R- Y

W
C12 A , C13 B
COMBINATION
METER

R- Y
22 A

CHG

6 EA1

R- Y
W

12 A 18 B 19 A
LG- R

G- O

2 2A

2
4 IE5 13 IE5

120A
LG- R

G- O

W- B

ALT
E2 A , E3 B , E4 C ,

1 10 B 6 A (1ZZ- FE)
18 E 29 E (2ZZ- GE)
ENGINE CONTROL

1 2A
E 8 E , E12 I

MPX1 MPX2
MODULE

RL
B- R

10 C (1ZZ- FE)
R- Y

21 I (2ZZ- GE)
W

Y W

FL MAIN 1 B 2 B 3 B 1 A
3. 0W L IG S B

20 IM

12 II

BATTERY

IC REGULATOR
W- B

G1 A , G2 B
IF
GENERATOR

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2004 CELICA (EWD538U)

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 SERVICE HINTS
G2 (B) GENERATOR
(B) 3-GROUND : 13.9- 15.1 volts with the engine running at 2000 rpm and 25°C (77°F)
13.5- 14.3 volts with the engine running at 5000 rpm and 115°C (239°F)
(B) 1-GROUND : 0- 4 volts with the ignition SW at ON position and the engine not running

: PARTS LOCATION
Code See Page Code See Page Code See Page
C12 A 36 E4 C 32 (1ZZ-FE) G1 A 34 (2ZZ-GE)
C13 B 36 E8 E 34 (2ZZ-GE) 32 (1ZZ-FE)
G2 B
E2 A 32 (1ZZ-FE) E12 I 34 (2ZZ-GE) 34 (2ZZ-GE)
E3 B 32 (1ZZ-FE) G1 A 32 (1ZZ-FE)
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IM
2A
23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2C

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
40 (1ZZ-FE)
EA1 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
42 (2ZZ-GE)
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH

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 ENGINE CONTROL (1ZZ-FE)

B- R

B- R

B- R

4 6
5 AM2 IG2 6 B- O B- O
IK IC
ST2 4 B- W B- W
B- R

B- W
11 IK I10
IGNITION SW B- W

B- W

B- W
9 IC 1 IE1
B- W

B- W

B- W

B- W

B- W

B- W
B- R

B- R

B- R

B- R
L
L

16 2F 4 2H 1 1 20 2F 4 2F 4 2C 3 2C 14 2C 15 2C 16 2C 18 2F 19 2F

2
5 1

7. 5A 40A
AM2 MAIN ST 10A 10A
RELAY 7. 5A
ST EFI EFI
NO. 1 NO. 2
1 3 2

1 1
1 2A 3 2H 5 1
B
C/OPN
W- B

RELAY
B- W
3 2
B- R

3 IC1 1 IE4 14 EA1

11 2F 10 2F
(M/T)
B- W

(A/T)
B

G- R
L- B

1 9
PARK/NEUTRAL
CLUTCH START

POSITION SW

P
(M/T)
W- B

W- B
B- W
(A/T)

11 II2
N
C11

SW

P1

2 6
L- B
(M/T)

(A/T)
W- B

W- B

4
F17
FL MAIN FUEL M
3. 0W 6 IC1 4 EA1 PUMP
5
W- B

W- B
BATTERY

A A
J3 J14 G- R
JUNCTION JUNCTION
CONNECTOR CONNECTOR

IE BJ

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 L L

B- R B- R

B- R B- R

B- R B- R

B- O

B- W B- W

B- W B- W

B- W B- W

B- W B- W

B- W B- W

B- O
B- O

B- O
W

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

8 2F 14 2F 15 2F

20A 15A
EFI IG2

5 1 1 5
RELAY

IG2
EFI

RELAY

3 2 2 3

12 2F 4 2G 7 2H 11 2C 26 2C 24 2C 25 2C 23 2C 10 2C 9 2C 8 2C 7 2C
W- B

W- B
L- B

B
INJECTOR NO. 1

INJECTOR NO. 3

INJECTOR NO. 2

INJECTOR NO. 4
1 2 2 2 2
NOISE FILTER

SYSTEM)
(IGNITION
N1

I6

I8

I7

I9
2
1 1 1 1
R- B
W- B

R- L

R- W

W- B

L- B

G- R G- R

EM EB

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 ENGINE CONTROL (1ZZ-FE)

L B- W

B- R B- W

B- R B- R

B- R W- B

B- W

B- W

B- W

B- W

FROM FAN RELAY NO. 3

FROM FAN RELAY NO. 1

B- R
10 IB
5 19
B- W B- W
IB IN 2 3
W
CLOSED VALVE)
VSV (CANISTER

1 2 1 1

VSV (PRESSURE
B- O

VSV (EVAP)

VSV (ACIS)

SWITCHING
VALVE)
I1
V4

V5

V3
1
IDLE AIR

V7
2 1 2 2
CONTROL

G- O
R- L
VALVE
V- W

B- W

L- W
G- O
B- O

B- R

13 EA1 10 II2

L- Y
W

G- O
R- L

8 A 1 A 16 A 11 B 17 D 4 C 9 B 23 B 18 D 3 B 4 B
IGSW BATT +B STA CCV EVP1 VSV TBP RSO CF FAN

E2 A , E3 B , E4 C , E5 D
ENGINE CONTROL MODULE

# 40 # 20 #30 # 10 IGT1 IGT2 IGT3 IGT4 IGF

4 D 2 D 3 D 1 D 10 D 11 D 12 D 13 D 25 D
31
B- Y
R- W
R- B

R- L

2C
30
B- Y

B- Y
2C
13
B- Y
2C
R- W

G- R
R- B

B- Y

B- Y

B- Y

12 32
R- Y

B- Y
2C 2C
3 2 3 2 3 2 3 2
AND IGNITER NO. 1

AND IGNITER NO. 2

AND IGNITER NO. 3

I5
IGNITION COIL

IGNITION COIL

IGNITION COIL

R- B IGNITION COIL
AND IGNITER NO. 4

R- L
I2

I3

I4

1 4 1 4 1 4 1 4
R- W W- B C
W- B

W- B

W- B
B

R W- B C
CONNECTOR
JUNCTION

B W- B C

B W- B C
J2

B W- B C

B
C

W- B
W- B

L- B L- B

G- R G- R

EC

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 L- B
Y- B

B- R

G- R
W- B
B- W
B- W

12 A
L- B FROM MG/C RELAY

ACMG

21 B
MREL
G FROM A/C MAGNETIC

28 B
G- R CLUTCH AND LOCK SENSOR

LCKI

3 A
FC
O FROM A/C DUAL

18 B

1
Y

PRE
PRESSURE SW

L
10 C
RL
G2 R- B FROM BACK- UP LIGHT SW

2 B
R
GENERATOR (A/T) [PARK/NEUTRAL POSITION SW]

1
Y- B

22 D
MOPS
2
O2 Y- G 1 B- R

1 C
+B

E2G

EVG
OIL PRESSURE SW

Downloaded from www.Manualslib.com manuals search engine

4
L- R

22 C

1
P

THA
THA

28 D
PS
3
5

P2 G- W BR

11 C
E2

VC

VG
POWER STEERING OIL
PRESSURE SW
M1
MASS AIR
FLOW METER
1
2

R R BR

2 C
VC
E2
E2

VC

ENGINE CONTROL MODULE

R
3

B- W

23 C
VTA
VTA

E2 A , E3 B , E4 C , E5 D
T1
11
EA1

THROTTLE POSITION
SENSOR

2004 CELICA (EWD538U)

8

R
3

R
II2
V6

SENSOR

12
2

L- B L- B
4 A
II2

PTNK

G- O
4

24 D
VAPOR PRESSURE

BR
OCV+
II2
BR
BR

BR

1
2
W BR
23 D
7 EA1

OCV-

C3
2
1

CAMSHAFT TIMING G BR
14 C
E2

OIL CONTROL VALVE (VVT)

THW

E6

23
P P ENGINE COOLANT
8 B

14 IB

5 IH
TEMP. SENSOR
F/PS

GSW2
C6 BR BR
18 C
E2

CENTER AIRBAG
SENSOR ASSEMBLY
B- W
B- W

W- B

69
 ENGINE CONTROL (1ZZ-FE)

B- W

B- W

W- B
26 2F 25 2F 27 2F 3 2B 13 2F
FROM POWER SOURCE SYSTEM
(SEE PAGE 52)

BR

BR

BR

BR
B- W

B- W
BR

(BANK 1 SENSOR 1)
HEATED OXYGEN
10A 2 4 2 4

(BANK 1 SENSOR 2)
STOP

HEATED OXYGEN
+B E1 +B E1

SENSOR
HT OX1A HT2 OX1B

H8

SENSOR
2 IK 1 3 1 3

H9
G- W (* 1)

B
Y- R
G- B

9 IK
STOP LIGHT SW

5 EA1 8 EA1 2 EA1

W- B
BR
S8

6 IB
E1 BR
1
(* 1)

(* 1)

W
B

G- W BR
G- W

Y- G
Y- R

(* 1)

6 B 3 C 12 C 16 B 25 B
STP HT1A OX1A HT1B OX1B

E2 A , E3 B , E4 C , E5 D
ENGINE CONTROL MODULE

IDLO OD1 EC NE+ NE- G2 KNK1 E1

10 A 1 B 12 B 16 C 24 C 15 C 27 D 17 C

BR
W- B
L- W

L
(* 1)

W
O

18 IE3 19 IE3
(*1)

E2

1 EB1
B- W
(*1)

(*1)

(*1)

(*1)

BR
W

W
L- W

L
B

CONNECTOR

13 14 2 1 1
POSITION SENSOR

POSITION SENSOR

JUNCTION

IDL OD A A A
KNOCK SENSOR

A
CRANKSHAFT

J1
CAMSHAFT

A A A
(* 1)
1 2
C4

C1

K1

C18
CRUISE CONTROL BR
ECU
BR
W- B

EB

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52)

A C
7. 5A OBD

WARNING

BK/UP LP
5A
5A
6 6

7 IF 11 IM 7 IB
BR- W

LG- R
W- R

G- O
R- B

R- Y

R- L
P

* 1 : SHIELDED

4 IM 5 IM 12 IE5 4 IE5 13 IE5 18 A 12 B 7 B 9 A 6 B 22 A 6 2F

COMBINATION METER

ENGINE
CHECK
LG- R

G- O

C12 A , C13 B
R- B

11 IB 4 IB 2 2C
BR- W

W- R

W- B

BR

R- L
BR 7 A 1 B 3 B 8 A 20 A

LG- B
(* 1)

Y- G

R- L
BR

LG
27 B 22 B 15 A 10 B 6 A
TACH SPD W MPX1 MPX2
17 16
L MPX1
E2 A , E3 B , E4 C , E5 D
ENGINE CONTROL MODULE

B6
E02 E03 E01 TC SIL BODY ECU
31 D 7 A 21 D 5 B 11 A
W- B

W- B

W- B

P- B

10 IE5 1 IE5
BR
W

LG- B

LG
8 IB 3 IB 11 IE5

6 EA2 4 EA2

4 IF 3 IF
G- Y

R- L
LG
P- B

BR
W

(* 1)

1 EA1
13 7 5 16 2 3 1
TC SIL SG BAT SE SI IG+

CG
4 D1
A DATA LINK
W- B A A W- B CONNECTOR 3

J2 V1
W- B

JUNCTION VEHICLE SPEED

CONNECTOR SENSOR
(* 1) (COMBINATION METER)

BR

BR
A
W- B

W- B

BR

W- B J3
JUNCTION
CONNECTOR

ED EC IE IH

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 ENGINE CONTROL (1ZZ-FE)
SYSTEM OUTLINE
This system utilizes an engine control module and maintains overall control of the engine, transmission and so on. An outline
of the engine control is explained here.
1. INPUT SIGNALS
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built-in thermistor with a resistance which
varies according to the engine coolant temp. The engine coolant temp. is input into TERMINAL THW of the engine
control module as a control signal.
(2) Intake air temp. signal circuit
The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a
control signal to TERMINAL THA of the engine control module.
(3) Oxygen sensor signal circuit
The oxygen density in the exhaust emission is detected and is input as a control signal from the heated oxygen sensors
(Bank 1 sensor 1, bank 1 sensor 2) to TERMINALS OX1A, OX1B of the engine control module.
To stabilize detection performance by the heated oxygen sensors, the heated oxygen sensors are warmed. This heater
is also controlled by the engine control module (HT1A, HT1B).
(4) RPM signal circuit
Camshaft position is detected by the camshaft position sensor and its signal is input to TERMINAL G2 of the engine
control module as a control signal. Also, the engine RPM is detected by the crankshaft position sensor installed in the
cylinder block and the signal is input into TERMINAL NE+ of the engine control module as a control signal.
(5) Throttle signal circuit
The throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINAL
VTA of the engine control module.
(6) Vehicle speed circuit
The vehicle speed sensor, installed inside the transmission, detects the vehicle speed and inputs a control signal into
TERMINAL SPD of the engine control module.
(7) A/C SW signal circuit
The operating voltage of the A/C magnetic clutch is detected and the signal is input into TERMINAL ACMG of the engine
control module as a control signal.
(8) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. With the ignition SW turned on, Voltage
for engine control module start-up power supply is applied to TERMINAL +B of the engine control module via the EFI
relay.
(9) Intake air volume signal circuit
Intake air volume is detected by the mass air flow meter and the signal is input to TERMINAL VG of the engine control
module as a control signal.
(10) Stop light SW signal circuit
The stop light SW is used to detect whether or not the vehicle is braking and the signal is input into TERMINAL STP of
the engine control module as a control signal.
(11) Starter signal circuit
To confirm whether the engine is cranking, the voltage applied to the starter motor during cranking is detected and the
signal is input into TERMINAL STA of the engine control module as a control signal.
(12) Engine knock signal circuit
Engine knocking is detected by knock sensor and the signal is input into TERMINAL KNK1 as a control signal.

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 2. CONTROL SYSTEM
∗ SFI system
The SFI system monitors the engine condition through the signals input from each sensor (Input signals from (1) to (12)
etc.) to the engine control module. The best fuel injection timing is decided based on this data and the program
memorized by the engine control module, and the control signal is output to TERMINALS #10, #20, #30 and #40 of the
engine control module to operate the injector (Inject the fuel). The sequential multiport fuel injection (Electronic fuel
injection) system controls the fuel injection operation by the engine control module in response to the driving conditions.
∗ ESA system
The ESA system monitors the engine condition through the signals input to the engine control module from each sensor
(Input signals from (1), (2), (4) to (12) etc.). The best ignition timing is decided according to this data and the memorized
data in the engine control module, and the control signal is output to TERMINALS IGT1, IGT2, IGT3 and IGT4. This
signal controls the igniter to provide the best ignition timing for the driving conditions.
∗ Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of
exhaust emissions is low), and warms up the heated oxygen sensors (Bank 1 sensor 1, bank 1 sensor 2) to improve
detection performance of the sensors.
The engine control module evaluates the signals from each sensor (Input signals from (1), (2), (4), (8) to (10) etc.), and
outputs current to TERMINALS HT1A, HT1B to control the heater.
∗ ACIS
ACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened and closed in
accordance with the driving conditions to control the intake manifold length in two stages for increased engine output in
all ranges from low to high speeds.
The engine control module judges the engine speed by the signals ( (4), (5) ) from each sensor and outputs signals to
the TERMINAL VSV to control the VSV (ACIS).
∗ MPX
The MPX communicates with the combination meter, as well as body ECU of the multiplex communication system
3. DIAGNOSIS SYSTEM
With the diagnosis system, when there is a malfunction in the engine control module signal system, the malfunctioning
system is recorded in the memory. The malfunctioning system can be found by reading the code displayed by the
malfunction indicator lamp.
4. FAIL-SAFE SYSTEM
When a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued control
based on the signals from that system, the fail-safe system either controls the system by using data (Standard values)
recorded in the engine control module memory or else stops the engine.

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 ENGINE CONTROL (1ZZ-FE)
SERVICE HINTS
E2 (A), E3 (B), E4 (C), E5 (D) ENGINE CONTROL MODULE
BATT-E1 : Always 9.0- 14.0 volts
+B-E1 : 9.0- 14.0 volts (Ignition SW at ON position)
VC-E2 : 4.5- 5.5 volts (Ignition SW at ON position)
VTA-E2 : 0.3- 0.8 volts (Ignition SW ON and throttle valve fully closed)
3.2- 4.9 volts (Ignition SW ON and throttle valve open)
THA-E2 : 0.5- 3.4 volts (Ignition SW ON and intake air temp. 20°C, 68°F)
THW-E2 : 0.2- 1.0 volts (Ignition SW ON and coolant temp. 80°C, 176°F)
STA-E1 : 6.0- 14.0 volts (Engine cranking)
W-E1 : 9.0- 14.0 volts (No trouble and engine running)
STP-E1 : 9.0- 14.0 volts (Brake pedal depress)
IGT1, IGT2, IGT3, IGT4-E1 : 0.8- 1.2 volts (Engine cranking or idling)
#10, #20, #30, #40-E01, E02 : 9.0- 14.0 volts (Ignition SW at ON position)
RESISTANCE OF ECU WIRING CONNECTORS
(Disconnect wiring connector)
VTA-E2 : 3.3- 10.0 kΩ (Throttle valve fully open)
0.2- 0.8 kΩ (Throttle valve fully closed)
VC-E2 : 3.0- 7.0 kΩ
THA-E2 : 2.0- 3.0 kΩ (Intake air temp. 20°C, 68°F)
THW-E2 : 0.2- 0.4 kΩ (Coolant temp. 80°C, 176°F)
C/OPN RELAY
5-3 : Closed with the starter cranking and engine running
EFI RELAY
3-5 : Closed with the ignition SW at ON or ST position
E6 ENGINE COOLANT TEMP. SENSOR
1-2 : 10.0- 20.0 kΩ (-20 °C, -4 °F)
4.0- 7.0 k Ω (0°C, 32°F)
2.0- 3.0 kΩ (20°C, 68°F)
0.9- 1.3 kΩ (40°C, 104°F)
0.4- 0.7 kΩ (60°C, 140°F)
0.2- 0.4 kΩ (80°C, 176°F)

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 36 G2 32 (1ZZ-FE) J14 38
C1 32 (1ZZ-FE) H8 37 K1 33 (1ZZ-FE)
C3 32 (1ZZ-FE) H9 37 M1 33 (1ZZ-FE)
C4 32 (1ZZ-FE) I1 33 (1ZZ-FE) N1 33 (1ZZ-FE)
C6 36 I2 33 (1ZZ-FE) O2 33 (1ZZ-FE)
C11 36 I3 33 (1ZZ-FE) P1 33 (1ZZ-FE)
C12 A 36 I4 33 (1ZZ-FE) P2 33 (1ZZ-FE)
C13 B 36 I5 33 (1ZZ-FE) S8 37
C18 36 I6 33 (1ZZ-FE) T1 33 (1ZZ-FE)
D1 36 I7 33 (1ZZ-FE) V1 33 (1ZZ-FE)
E2 A 32 (1ZZ-FE) I8 33 (1ZZ-FE) V3 33 (1ZZ-FE)
E3 B 32 (1ZZ-FE) I9 33 (1ZZ-FE) V4 33 (1ZZ-FE)
E4 C 32 (1ZZ-FE) I10 37 V5 33 (1ZZ-FE)
E5 D 32 (1ZZ-FE) J1 33 (1ZZ-FE) V6 39
E6 32 (1ZZ-FE) J2 33 (1ZZ-FE) V7 39
F17 38 J3 37

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 26 Engine Room R/B No.1 (Engine Compartment Left)

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 ,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IB
25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IC
IF
IH
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
IM
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2A
2B 23 Engine
g Wire and Engine
g Room J/B ((Engine
g Compartment Left))
2C
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
40 (1ZZ-FE)
(1ZZ FE) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
EA2
EB1 40 (1ZZ-FE) Engine No.4 Wire and Engine Wire (Under the Intake Manifold)
IC1 44 Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH)
IE1
IE3
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE4
IE5
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

EB 40 (1ZZ-FE) Front Left Fender
EC
40 (1ZZ-FE)
(1ZZ FE) Cylinder Head Cover LH
ED
EM 40 (1ZZ-FE) Front Left Fender
IE 44 Cowl Side Panel LH
IH 44 Cowl Side Panel RH
BJ 48 Luggage Room Left

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 40 (1ZZ-FE) Engine Room Main Wire E2 40 (1ZZ-FE) Engine Wire

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 ENGINE CONTROL (2ZZ-GE)

J6
JUNCTION L
CONNECTOR
C B- O B- R

B- R
C

4 IK B- R

6
5 AM2 IG2 6 B- O B- O
IC
ST2 4 B- W B- W
B- R

B- W
11 IK I10
IGNITION SW B- W

B- W

B- W
9 IC 1 IE1
B- W

B- W

B- W

B- W

B- W

B- W
B- R

B- R

B- R

B- R
L
L

16 2F 4 2H 1 1 20 2F 4 2F 4 2C 3 2C 14 2C 15 2C 16 2C 18 2F 19 2F

2
5 1

7. 5A 40A
AM2 MAIN ST 10A 10A
RELAY 7. 5A
ST EFI EFI
NO. 1 NO. 2
1 3 2

1 1
1 2A 3 2H 5 1
B
C/OPN
W- B

RELAY
B- W
3 2
B- R

3 IC1 1 IE4 14 EA1

11 2F 10 2F
(M/T)
B- W

(A/T)
B

G- R
L- B

1 9
PARK/NEUTRAL
CLUTCH START

POSITION SW

P
(M/T)
W- B

W- B
B- W
(A/T)

11 II2
N
C11

SW

P1

2 6
L- B
(M/T)

(A/T)
W- B

W- B

4
F17
FL MAIN FUEL M
3. 0W 6 IC1 4 EA1 PUMP
5
W- B

W- B
BATTERY

A A
J3 J14 G- R
JUNCTION JUNCTION
CONNECTOR CONNECTOR

IE BJ

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 L L

B- R B- R

B- R B- R

B- R B- R

B- O

B- W B- W

B- W B- W

B- W B- W

B- W B- W

B- W B- W

W- L

B- O
W- L

B- O

B- O

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

8 2F 14 2F 15 2F

20A 15A
EFI IG2

5 1 1 5
RELAY

IG2
EFI

RELAY

3 2 2 3

12 2F 4 2G 7 2H 11 2C 26 2C 24 2C 25 2C 23 2C 10 2C 9 2C 8 2C 7 2C
W- B

W- B
GR

B
INJECTOR NO. 1

INJECTOR NO. 3

INJECTOR NO. 2

INJECTOR NO. 4
1 2 2 2 2
NOISE FILTER

SYSTEM)
(IGNITION
N1

I6

I8

I7

I9
2
1 1 1 1
L
W- B

L- O

L- B

L- R

W- B

GR

G- R G- R

EM EB

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 ENGINE CONTROL (2ZZ-GE)

B- R

B- R B- R

B- R

B- W

B- W

B- W

B- W B- W

B- W B- W
E4
W- L

CLOSED VALVE)

VSV (AIR PUMP)

VSV (CANISTER
1 2 1 1

L
B- O

VSV (EVAP)

VSV (ACIS)
FROM POWER SOURCE SYSTEM
(SEE PAGE 52)
11 EA3

V4

V5

V3

V8
2 1 2 2
1

50A
B- W

V- W
W- L

G- Y
B- O

B- R
R- L

GR
A- AMP

L
2
9 F 3 F 12 I 11 I 15 G 33 G 1 F 9 H
1 IGSW BATT CCV EVP ACLV AIRV +B STA
B- R

E 8 E , E 9 F , E10 G , E11 H , E12 I

4 2 ENGINE CONTROL MODULE

A19
AIR PUMP AIRP # 40 #20 # 30 # 10
RELAY
3 H 4 G 2 G 3 G 1 G
GR- R

3 1
L- O

L- R
L- B
L
B

7 EA2
1 EC1
GR- R

A18
AIR PUMP MOTOR
B 2 1 W B
M E3
W

L- O

L- B

L- R

B B

B B

B B

B B

W- B W- B

GR GR

G- R G- R
W

EN EO

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 B
B
B
B

GR
B- R

G- R
W- B
B- W
B- W
I2
IGNITION COIL
AND IGNITER NO. 1

1
3
B R- G

8 G
IGT1
5
IB

4
2
W- B B- Y

E1
I3

10 IB
IGNITION COIL
AND IGNITER NO. 2

1
3
B GR- R

9 G
IN
19

W- B
IGT2
10
B- W

4
2
2
1
W- B B- Y G- O G- O

4 F
II2

Downloaded from www.Manualslib.com manuals search engine

E1
TBP
I4 V7
IGNITION COIL VSV (PRESSURE
AND IGNITER NO. 3 SWITCHING VALVE)

1
3
B G- R

10 G

W- B
IGT3

4
2
W- B B- Y

E1
I5
IGNITION COIL
AND IGNITER NO. 4

1
3
B R- Y

11 G

W- B
IGT4
2
1

W- R
1

6 E

ENGINE CONTROL MODULE

+BM

4
2
W- B

2004 CELICA (EWD538U)

E1
10A

B- Y
B- Y
B- Y
B- Y
ETCS

12
13
30
31

2C
2C
2C
2C

W- B
E 8 E , E 9 F , E10 G , E11 H , E12 I

L- W
5 G

FROM FAN RELAY NO. 3

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

CF

EC
32
L- Y

2C
FROM FAN RELAY NO. 1,
14 G
FAN

FAN NO. 2 RELAY

B- Y
24 G
IGF

Y- O
2 E

FROM MG/C RELAY

ACMG

GR
8 F

G
MREL

FROM A/C MAGNETIC

23 I

CLUTCH AND LOCK SENSOR

LCKI

G- R
10 F
FC

O FROM A/C DUAL

1 E
HP

PRESSURE SW

1
Y
21 I

L
RL

R- B FROM BACK- UP LIGHT SW

11 E
R

G2 (A/T) [PARK/NEUTRAL POSITION SW]

B- R
B- W
B- W

GENERATOR

79
 ENGINE CONTROL (2ZZ-GE)

B- W B- W

B- W B- W

B- R BR

BR

BR
E2
B- R

BR

BR

BR

BR

BR
AIR PUMP PRESSURE
MASS AIR FLOW METER

T1 V6
THROTTLE POSITION VAPOR PRESSURE

ENGINE COOLANT TEMP. SENSOR

1 5 MOTOR 3 1 SENSOR
+B E2 E2

SENSOR
A22
M+ M- VTA2 VTA VC
M1

E2G THA VG
2 1 4 6 5 3 2
2 4 3 3 2 1

R- B
1

R- B

LG

L- B

BR

BR
R
E2
(*3)

E6
8 II2 12 II2 4 II2
R- B
2

R- B
11

BR
R- B 7 EA1
E2 EA1
G- W
Y- G

Y- R

B- W

R- B
B- L

L- B

BR
W

G
B

22 H 20 G 24 H 17 I 3 I 2 I 31 G 21 G 18 G 29 G 21 F 19 G 28 G
EVG THA VG GE01 M+ M- VTA2 VTA VC AIP PTNK THW E2

E 8 E , E 9 F , E10 G , E11 H , E12 I

ENGINE CONTROL MODULE

OCVL+ OCVL- OCV+ OCV- F/PS EPA2 VPA2 VCP2 EPA VPA VCPA ME01
14 I 13 I 16 I 15 I 14 F 29 F 23 F 27 F 28 F 22 F 26 F 4 I
L- W

G- O

P- G
L- B

14 IB
LG- R

L- W
L- O

L- R

5 IH
L- Y
L
P
OIL CONTROL VALVE (VVT)
OIL CONTROL VALVE (VVL)

W- R
SENSOR ASSEMBLY
CAMSHAFT TIMING

CAMSHAFT TIMING

2 2 23 1 2 4 3 5 6
CENTER AIRBAG

GSW2
C2

C3

C6

1 1 A17
ACCELERATOR PEDAL POSITION SENSOR

EC

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 B- W BR * 3 : SHIELDED

B- W
26 2F

FROM POWER SOURCE SYSTEM

(SEE PAGE 52)

25 2F 13 2F 3 2B

B- W

BR

B- W

BR

BR

BR
10A 2 4 2 4
STOP
+B E1 H8 +B E1 H9
HEATED OXYGEN HEATED OXYGEN
SENSOR SENSOR
(BANK 1 SENSOR 1) (BANK 1 SENSOR 2)
HT OX1A HT2 OX1B
2 IK 1 3 1 3

G- W

Y- G
(* 3)

(* 3)

R
B
Y- R
G- B

9 IK
STOP LIGHT SW

5 EA1 8 EA1 2 EA1 10 EA3 9 EA3 2 EA1

BR
S8

6 IB
BR
1

Y- G
Y- R

(* 3)

(* 3)

R
B

G- W (* 3)
G- W

(* 3)

19 E 4 H 23 H 6 I 29 H
STP HT1A OX1A HT1B OX1B

E 8 E , E 9 F , E10 G , E11 H , E12 I

ENGINE CONTROL MODULE

MOPS PSW OSW EC NE+ NE- G22+ EKNK KNK1 E1

22 I 10 I 8 I 30 I 27 G 34 G 27 I 1 H 2 H 1 I
Y- B

GR

BR
P

W- B

(*3)

B
(* 3)

W
O

E2
B- W
(* 3)
W

B
L

(*3)

(*3)

(*3)

BR

7 EA3
POWER STEERING OIL

KNOCK SENSOR
OIL PRESSURE SW

CONNECTOR
OIL PRESSURE SW

1 1 1 2 1 2
POSITION SENSOR

POSITION SENSOR

JUNCTION
PRESSURE SW

A A A A
CRANKSHAFT

J1
CAMSHAFT

K1
(VVTL)

A A A A
O2

(* 3)
P2

1 2 1
E7

C4

C1

(* 3)

BR

BR
W- B

EB

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 ENGINE CONTROL (2ZZ-GE)

BR- W

W- R

R- B

LG- R

G- O

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

BR- W

LG- R
W- R

G- O
R- B

4 IM 5 IM 12 IE5 4 IE5 13 IE5

7. 5A
OBD
LG- R

G- O
R- B

11 IB 4 IB
7 IF
BR- W

W- R

P
BR

BR

(* 3)

(* 3)

5 F 17 E 11 F 18 E 29 E
TACH SPD W MPX1 MPX2

E 8 E , E 9 F , E10 G , E11 H , E12 I

ENGINE CONTROL MODULE

E02 E01 E03 WFSE TC SIL

6 G 7 G 7 I 19 F 20 F 18 F
W- B

W- B

W- B

P- B

BR
W
G

8 IB 3 IB 11 IE5

21 IE3

4 IF 3 IF
P- B

(*3)

(*3)
BR

BR
W
G

15 13 7 5 16
WFSE TC SIL SG BAT

CG
4 D1
DATA LINK
CONNECTOR 3
W- B

(* 3)

(* 3)

BR

BR A
W- B

W- B

W- B J3
JUNCTION
CONNECTOR

ED EC IE

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 BR- W FROM POWER SOURCE SYSTEM (SEE PAGE 52)

W- R A C

R- B
5A 5A
WARNING BK/UP LP
LG- R

G- O
6 6

11 IM 7 IB

R- Y

R- L
18 B 12 A 7 B 9 A 6 B 22 A 6 2F
COMBINATION METER

ENGINE
CHECK
C12 A , C13 B

2 2C

R- L
7 A 1 B 3 B 8 A 20 A
LG- B
Y- G

R- L
BR

LG

17 16 * 3 : SHIELDED

L MPX1

B6
BODY ECU

10 IE5 1 IE5
LG- B

LG

6 EA2 4 EA2
G- Y

R- L
LG

2 3 1
SE SI IG+

V1
VEHICLE SPEED SENSOR
(COMBINATION METER)
BR

IH

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 ENGINE CONTROL (2ZZ-GE)
SYSTEM OUTLINE
This system utilizes an engine control module and maintains overall control of the engine, transmission and so on. An outline
of the engine control is explained here.
1. INPUT SIGNALS
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built-in thermistor with a resistance which
varies according to the engine coolant temp. The engine coolant temp. is input into TERMINAL THW of the engine
control module as a control signal.
(2) Intake air temp. signal circuit
The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a
control signal to TERMINAL THA of the engine control module.
(3) Oxygen sensor signal circuit
The oxygen density in the exhaust emission is detected and is input as a control signal from the heated oxygen sensors
(Bank 1 sensor 1, bank 1 sensor 2) to TERMINALS OX1A, OX1B of the engine control module.
To stabilize detection performance by the heated oxygen sensors, the heated oxygen sensors are warmed. This heater
is also controlled by the engine control module (HT1A, HT1B).
(4) RPM signal circuit
Camshaft position is detected by the camshaft position sensor and its signal is input to TERMINAL G2 of the engine
control module as a control signal. Also, the engine RPM is detected by the crankshaft position sensor installed in the
cylinder block and the signal is input into TERMINAL NE+ of the engine control module as a control signal.
(5) Throttle signal circuit
The throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINALS
VTA, VTA2 of the engine control module.
(6) Vehicle speed circuit
The vehicle speed sensor, installed inside the transmission, detects the vehicle speed and inputs a control signal into
TERMINAL SPD of the engine control module.
(7) A/C SW signal circuit
The operating voltage of the A/C magnetic clutch is detected and the signal is input into TERMINAL ACMG of the engine
control module as a control signal.
(8) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. With the ignition SW turned on, Voltage
for engine control module start-up power supply is applied to TERMINAL +B of the engine control module via the EFI
relay.
(9) Intake air volume signal circuit
Intake air volume is detected by the mass air flow meter and the signal is input to TERMINAL VG of the engine control
module as a control signal.
(10) Stop light SW signal circuit
The stop light SW is used to detect whether or not the vehicle is braking and the signal is input into TERMINAL STP of
the engine control module as a control signal.
(11) Starter signal circuit
To confirm whether the engine is cranking, the voltage applied to the starter motor during cranking is detected and the
signal is input into TERMINAL STA of the engine control module as a control signal.
(12) Engine knock signal circuit
Engine knocking is detected by knock sensor and the signal is input into TERMINAL KNK1 as a control signal.

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 2. CONTROL SYSTEM
∗ SFI system
The SFI system monitors the engine condition through the signals input from each sensor (Input signals from (1) to (12)
etc.) to the engine control module. The best fuel injection timing is decided based on this data and the program
memorized by the engine control module, and the control signal is output to TERMINALS #10, #20, #30 and #40 of the
engine control module to operate the injector (Inject the fuel). The sequential multiport fuel injection (Electronic fuel
injection) system controls the fuel injection operation by the engine control module in response to the driving conditions.
∗ ESA system
The ESA system monitors the engine condition through the signals input to the engine control module from each sensor
(Input signals from (1), (2), (4) to (12) etc.). The best ignition timing is decided according to this data and the memorized
data in the engine control module, and the control signal is output to TERMINALS IGT1, IGT2, IGT3 and IGT4. This
signal controls the igniter to provide the best ignition timing for the driving conditions.
∗ Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of
exhaust emissions is low), and warms up the heated oxygen sensors (Bank 1 sensor 1, bank 1 sensor 2) to improve
detection performance of the sensors.
The engine control module evaluates the signals from each sensor (Input signals from (1), (2), (4), (8) to (10) etc.), and
outputs current to TERMINALS HT1A, HT1B to control the heater.
∗ ACIS
ACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened and closed in
accordance with the driving conditions to control the intake manifold length in two stages for increased engine output in
all ranges from low to high speeds.
The engine control module judges the engine speed by the signals ( (4), (5) ) from each sensor and outputs signals to
the TERMINAL ACLV to control the VSV (ACIS).
∗ MPX
The MPX communicates with the combination meter, as well as body ECU of the multiplex communication system
3. DIAGNOSIS SYSTEM
With the diagnosis system, when there is a malfunction in the engine control module signal system, the malfunctioning
system is recorded in the memory. The malfunctioning system can be found by reading the code displayed by the
malfunction indicator lamp.
4. FAIL-SAFE SYSTEM
When a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued control
based on the signals from that system, the fail-safe system either controls the system by using data (Standard values)
recorded in the engine control module memory or else stops the engine.

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 ENGINE CONTROL (2ZZ-GE)
SERVICE HINTS
E8 (E), E9 (F), E10 (G), E11 (H), E12 (I) ENGINE CONTROL MODULE
BATT-E1 : Always 9.0- 14.0 volts
+B-E1 : 9.0- 14.0 volts (Ignition SW at ON position)
VC-E2 : 4.5- 5.5 volts (Ignition SW at ON position)
VTA-E2 : 0.3- 0.8 volts (Ignition SW ON and throttle valve fully closed)
3.2- 4.9 volts (Ignition SW ON and throttle valve open)
THA-E2 : 0.5- 3.4 volts (Ignition SW ON and intake air temp. 20°C, 68°F)
THW-E2 : 0.2- 1.0 volts (Ignition SW ON and coolant temp. 80°C, 176°F)
STA-E1 : 6.0- 14.0 volts (Engine cranking)
W-E1 : 9.0- 14.0 volts (No trouble and engine running)
STP-E1 : 9.0- 14.0 volts (Brake pedal depress)
IGT1, IGT2, IGT3, IGT4-E1 : 0.8- 1.2 volts (Engine cranking or idling)
#10, #20, #30, #40-E01, E02 : 9.0- 14.0 volts (Ignition SW at ON position)
RESISTANCE OF ECU WIRING CONNECTORS
(Disconnect wiring connector)
VTA-E2 : 3.3- 10.0 kΩ (Throttle valve fully open)
0.2- 0.8 kΩ (Throttle valve fully closed)
VC-E2 : 3.0- 7.0 kΩ
THA-E2 : 2.0- 3.0 kΩ (Intake air temp. 20°C, 68°F)
THW-E2 : 0.2- 0.4 kΩ (Coolant temp. 80°C, 176°F)
C/OPN RELAY
5-3 : Closed with the starter cranking and engine running
EFI RELAY
3-5 : Closed with the ignition SW at ON or ST position
E6 ENGINE COOLANT TEMP. SENSOR
1-2 : 10.0- 20.0 kΩ (-20 °C, -4 °F)
4.0- 7.0 k Ω (0°C, 32°F)
2.0- 3.0 kΩ (20°C, 68°F)
0.9- 1.3 kΩ (40°C, 104°F)
0.4- 0.7 kΩ (60°C, 140°F)
0.2- 0.4 kΩ (80°C, 176°F)

: PARTS LOCATION
Code See Page Code See Page Code See Page
A17 36 E10 G 34 (2ZZ-GE) J6 37
A18 34 (2ZZ-GE) E11 H 34 (2ZZ-GE) J14 38
A19 34 (2ZZ-GE) E12 I 34 (2ZZ-GE) K1 35 (2ZZ-GE)
A22 34 (2ZZ-GE) F17 38 M1 35 (2ZZ-GE)
B6 36 G2 34 (2ZZ-GE) N1 35 (2ZZ-GE)
C1 34 (2ZZ-GE) H8 37 O2 35 (2ZZ-GE)
C2 34 (2ZZ-GE) H9 37 P1 35 (2ZZ-GE)
C3 34 (2ZZ-GE) I2 35 (2ZZ-GE) P2 35 (2ZZ-GE)
C4 34 (2ZZ-GE) I3 35 (2ZZ-GE) S8 37
C6 36 I4 35 (2ZZ-GE) T1 35 (2ZZ-GE)
C11 36 I5 35 (2ZZ-GE) V1 35 (2ZZ-GE)
C12 A 36 I6 35 (2ZZ-GE) V3 35 (2ZZ-GE)
C13 B 36 I7 35 (2ZZ-GE) V4 35 (2ZZ-GE)
D1 36 I8 35 (2ZZ-GE) V5 35 (2ZZ-GE)
E6 34 (2ZZ-GE) I9 35 (2ZZ-GE) V6 39
E7 34 (2ZZ-GE) I10 37 V7 39
E8 E 34 (2ZZ-GE) J1 35 (2ZZ-GE) V8 35 (2ZZ-GE)
E9 F 34 (2ZZ-GE) J3 37

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 26 Engine Room R/B No.1 (Engine Compartment Left)

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 ,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IB
25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IC
IF
IH
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
IM
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2A
2B 23 Engine
g Wire and Engine
g Room J/B ((Engine
g Compartment Left))
2C
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA2 42 (2ZZ-GE)
( ) Engine
g Wire and Engine
g Room Main Wire (Inside
( of Engine
g Room R/B No.1))
EA3
EC1 42 (2ZZ-GE) Engine Room Main Wire and Engine Wire (Inside of Engine Room R/B No.1)
IC1 44 Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH)
IE1
IE3
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE4
IE5
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

EB 42 (2ZZ-GE) Front Left Fender
EC
42 (2ZZ-GE)
(2ZZ GE) Cylinder Head Cover LH
ED
EM 42 (2ZZ-GE) Front Left Fender
EN 42 (2ZZ-GE) Air Pump Bracket
EO 42 (2ZZ-GE) Engine Mount Brace RH
IE 44 Cowl Side Panel LH
IH 44 Cowl Side Panel RH
BJ 48 Luggage Room Left

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 42 (2ZZ-GE) Engine Room Main Wire E3 42 (2ZZ-GE) Engine Wire
E2 42 (2ZZ-GE) Engine Wire E4 42 (2ZZ-GE) Engine Room Main Wire

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 88
B- R B- R

FL MAIN
3. 0W J4 A , J5 B
BATTERY
JUNCTION
CONNECTOR

9
R- W R- W R- W

C A
A B
17 2F

3 2D

IE4
2
1
W- B R- W 15A

A B
HEAD RH LWR 1 2A

EB
(*2)

3
5

10 2D
HEAD RELAY
15A
HEAD LH LWR
HEADLIGHT (w/ HID)

R- L

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7. 5A

1
2

HEAD LVL
1 2H

DRL NO. 3 DRL NO. 1

RELAY

1
2
W- B R

2
2
40A

4 2D
5 2H

E1
MAIN
L
L

3
5
R- Y R- Y R- Y

2
2

10 IE4
2

5
2D

W- B
W- B
2
1
W- R

2
2

D9
2
1

DAYTIME RUNNING LIGHT L- W

2

RESISTOR
3
R- L
W- R
3
5
2

W- B

2004 CELICA (EWD538U)

DRL NO. 2
DIMMER RELAY

1
2
W- B W- B LG
W- L

2
2

E1

EM
5
3
2
1
2
1

W- B R- B R- B R- Y

2
2
2
2

R- Y

W- R
DRL NO. 4 RELAY
H13
10A

UPR

3
R- W HEADLIGHT CONTROL
ECU LH
R- B
HEAD RH

4
W- B W- B

IG
2
1

R- Y
2

1
2
R- Y W- G R- B

B B
B A
D A
E B
IE4

2
10A

UPR

IE5
H14 J4 A , J5 B

W- B
HEADLIGHT
HEAD LH

B B
CONTROL JUNCTION
ECU RH CONNECTOR

EA
J4 A , J5 B
JUNCTION
R- L

R- Y
L- W

W- R
CONNECTOR

R- W(* 2)
 R- L * 1 : W/ FOG LIGHT FROM POWER SOURCE SYSTEM (SEE PAGE 52)
* 2 : W/O FOG LIGHT

B C
L- W

7. 5A 5A
MPX- B BODY
ECU- IG

L- W
A14 6 2
AUTOMATIC LIGHT
CONTROL SENSOR
9 II2

CLTS CLTE CLTB

4 3 1

LG- R
LG- B

G- W
L- W

R- L

1 IB

17 B 10 3 A 24 A 4 A 8 3
DRL HRLY CLTS CLTE CLTB B IG

B6 A , B7 B
BODY ECU

E L PKB HF H T HU
11 17 A 19 B 12 A 18 A 5 A 19 A

12 II 20 IM
Y- G
W- B

R- Y

C12 A , C13 B
W- B

19 A 2 A 1 B COMBINATION METER
R- B

P- B

R- L

P- L
LG
BEAM
HEAD

PARKING BRAKE SW

1
P3

16 B 3 A 7 A 12 A 18 B
LG- R

G- O
W- R

8 13 14 7
CONTROL SW

OFF
R- W

R- W

4 IE5 13 IE5
(* 2)

(* 1)

TAIL
LG- R

G- O

LIGHT

HEAD
E2 A , E3 B , E4 C ,

ENGINE CONTROL MODULE

10 B 6 A (1ZZ- FE)
DIMMER SW

LOW
18 E 29 E (2ZZ- GE)
LIGHT RELAY
FROM FOG

MPX1 MPX2 HIGH

E 8 E , E12 I
BR

RL FLASH

10 C (1ZZ- FE) C15 16

W- B

21 I (2ZZ- GE) COMBINATION SW

R- Y
W- B
Y

R- W(* 2)
1
W- R L
G2 A
GENERATOR J3
JUNCTION
CONNECTOR

IF IH IE

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 HEADLIGHT (w/ HID)
SYSTEM OUTLINE
When the following conditions are met while the ignition SW is ON, and if the light control SW is at OFF or TAIL position, the
daytime running light is controlled.
∗ Parking brake lever is released (Parking brake SW is OFF)
∗ Input signal from the generator
If any of the following conditions are met, the daytime running light control is canceled.
∗ Ignition SW is turned OFF.
∗ Light control SW is at HEAD position.

SERVICE HINTS
HEAD RELAY
5-3 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position
Closed with the engine running and the parking brake lever released (Parking brake SW off)
C15 COMBINATION SW
13-16 : Closed with the light control SW at HEAD position
8-16 : Closed with the dimmer SW at FLASH position
7-16 : Closed with the dimmer SW at FLASH or HIGH position
P3 PARKING BRAKE SW
1-GROUND : Closed with the parking brake lever pulled up

: PARTS LOCATION
Code See Page Code See Page Code See Page
A14 36 E2 A 32 (1ZZ-FE) H13 34 (2ZZ-GE)
B6 A 36 E3 B 32 (1ZZ-FE) 32 (1ZZ-FE)
H14
B7 B 36 E4 C 32 (1ZZ-FE) 34 (2ZZ-GE)
C12 A 36 E8 E 34 (2ZZ-GE) J3 37
C13 B 36 E12 I 34 (2ZZ-GE) J4 A 37
C15 36 32 (1ZZ-FE) J5 B 37
G2
32 (1ZZ-FE) 34 (2ZZ-GE) P3 37
D9
34 (2ZZ-GE) H13 32 (1ZZ-FE)

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

2 27 Engine Room R/B No.2 (Engine Compartment Left)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IM
2A 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2D
2F 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE4
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

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 : GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
EB
42 (2ZZ-GE)
Front Left Fender
40 (1ZZ-FE)
EM
42 (2ZZ-GE)
IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IG
44 Cowl Side Panel RH
IH

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
40 (1ZZ-FE) I4 46 Engine Room No.2 Wire
E1 Engine Room Main Wire
42 (2ZZ-GE)

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 HEADLIGHT (w/o HID)

R- L

L- W

L- W
L W- L
B- R

17 2F 1 2A 1 2H 5 2H 2 2 2 2 2

2 1 1
1 5 1 5
HEAD RELAY

DRL NO. 2
40A 10A 10A

DIMMER
HEAD RH HEAD LH

RELAY
MAIN
UPR UPR

2 3 1 2 3 2 2

2 2

R- Y

R- Y

HEADLIGHT LH
1

(HIGH)
H1
15A 15A 7. 5A
HEAD LH HEAD RH HEAD LVL 2
LWR LWR DRL NO. 1

R- B
5
2D

10 2D 3 2D 4 2D
R- B

R- B
LG
R- W

R- Y
R

8 IE4
2 2 2 2
9 IE4

R- B
2 5 2 3

J5 B
DRL NO. 3

DRL NO. 4

CONNECTOR
4
R- W

R- W

E B
(*2)

RELAY

RELAY

JUNCTION
J4 A ,
J5 B
R- Y

A B A B 1 3 1 5
CONNECTOR

D A
JUNCTION
J4 A ,

R- B
2 2 2 2 2
B- R

HEADLIGHT RH
2
W- R

W- R
W- B

W- B

W- B
R- Y

C A
(HIGH)
H3
R- W

DAYTIME RUNNING LIGHT

10 IE4 1
1
HEADLIGHT

HEADLIGHT

R- Y

1 1
RH(LOW)
LH(LOW)
FL MAIN

J5 B
3. 0W

R- Y
H2

H4

B A
RESISTOR

CONNECTOR

2 2 2
JUNCTION
J4 A ,

W- B
D9

E1 E1

B B B B
W- B

W- B

R- Y R- Y

BATTERY R- W(* 2)

2
W- R W- R
IE5
W- B

W- B

W- B

EB IG EA EB EM

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 R- L * 1 : W/ FOG LIGHT FROM POWER SOURCE SYSTEM (SEE PAGE 52)
* 2 : W/O FOG LIGHT

B C
L- W

7. 5A 5A
MPX- B BODY
ECU- IG

L- W
A14 6 2
AUTOMATIC LIGHT
CONTROL SENSOR
9 II2

CLTS CLTE CLTB

4 3 1

LG- R
LG- B

G- W
L- W

R- L

1 IB

17 B 10 3 A 24 A 4 A 8 3
DRL HRLY CLTS CLTE CLTB B IG

B6 A , B7 B
BODY ECU

E L PKB HF H T HU
11 17 A 19 B 12 A 18 A 5 A 19 A

12 II 20 IM
Y- G
W- B

R- Y

C12 A , C13 B
W- B

19 A 2 A 1 B COMBINATION METER
R- B

P- B

R- L

P- L
LG
BEAM
HEAD

PARKING BRAKE SW

1
P3

16 B 3 A 7 A 12 A 18 B
LG- R

G- O
W- R

8 13 14 7
CONTROL SW

OFF
R- W

R- W

4 IE5 13 IE5
(* 2)

(* 1)

TAIL
LG- R

G- O

LIGHT

HEAD
E2 A , E3 B , E4 C ,

ENGINE CONTROL MODULE

10 B 6 A (1ZZ- FE)
DIMMER SW

LOW
18 E 29 E (2ZZ- GE)
LIGHT RELAY
FROM FOG

MPX1 MPX2 HIGH

E 8 E , E12 I
BR

RL FLASH

10 C (1ZZ- FE) C15 16

W- B

21 I (2ZZ- GE) COMBINATION SW

R- Y
W- B
Y

R- W(* 2)
1
W- R L
G2 A
GENERATOR J3
JUNCTION
CONNECTOR

IF IH IE

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 HEADLIGHT (w/o HID)
SYSTEM OUTLINE
When the following conditions are met while the ignition SW is ON, and if the light control SW is at OFF or TAIL position, the
daytime running light is controlled.
∗ Parking brake lever is released (Parking brake SW is OFF)
∗ Input signal from the generator
If any of the following conditions are met, the daytime running light control is canceled.
∗ Ignition SW is turned OFF.
∗ Light control SW is at HEAD position.

SERVICE HINTS
HEAD RELAY
5-3 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position
Closed with the engine running and the parking brake lever released (Parking brake SW off)
C15 COMBINATION SW
13-16 : Closed with the light control SW at HEAD position
8-16 : Closed with the dimmer SW at FLASH position
7-16 : Closed with the dimmer SW at FLASH or HIGH position
P3 PARKING BRAKE SW
1-GROUND : Closed with the parking brake lever pulled up

: PARTS LOCATION
Code See Page Code See Page Code See Page
A14 36 E3 B 32 (1ZZ-FE) H2 34 (2ZZ-GE)
B6 A 36 E4 C 32 (1ZZ-FE) 32 (1ZZ-FE)
H3
B7 B 36 E8 E 34 (2ZZ-GE) 34 (2ZZ-GE)
C12 A 36 E12 I 34 (2ZZ-GE) 32 (1ZZ-FE)
H4
C13 B 36 32 (1ZZ-FE) 34 (2ZZ-GE)
G2
C15 36 34 (2ZZ-GE) J3 37
32 (1ZZ-FE) 32 (1ZZ-FE) J4 A 37
D9 H1
34 (2ZZ-GE) 34 (2ZZ-GE) J5 B 37
E2 A 32 (1ZZ-FE) H2 32 (1ZZ-FE) P3 37

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

2 27 Engine Room R/B No.2 (Engine Compartment Left)
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IM
2A 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2D
2F 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE4
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

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 : GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
EB
42 (2ZZ-GE)
Front Left Fender
40 (1ZZ-FE)
EM
42 (2ZZ-GE)
IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IG
44 Cowl Side Panel RH
IH

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 40 (1ZZ-FE) Engine Room Main Wire E1 42 (2ZZ-GE) Engine Room Main Wire

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 HEADLIGHT BEAM LEVEL CONTROL

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

7. 5A
HEAD LVL
DRL NO. 1

4 2D 5 2D

LG
R

7 IE4
LG

A
A LG

A J6
JUNCTION
CONNECTOR
LG

H10
2 HEADLIGHT BEAM LEVEL CONTROL SW
+B

LH GND RH
4 1 5
G- R
G- Y

LG

6 IE5 5 IG3 6 IG3

W- B

G- R
G- Y

LG
R

3 2 2 3

H11 H12
HEADLIGHT BEAM HEADLIGHT BEAM
LEVEL CONTROL LEVEL CONTROL
ACTUATOR LH ACTUATOR RH

1 1
W- B

W- B

15 2
W- B W- B
IE5 I5 IG5
W- B

A
J3
JUNCTION
CONNECTOR

IE

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 SERVICE HINTS
H10 HEADLIGHT BEAM LEVEL CONTROL SW
2-GROUND : Always approx. 12 volts
1-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
H10 38 32 (1ZZ-FE) J6 37
H12
32 (1ZZ-FE) 34 (2ZZ-GE)
H11
34 (2ZZ-GE) J3 37
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
2D 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE4
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5
IG3
46 Engine Room No.2
No 2 Wire and Instrument Panel Wire (Right Kick Panel)
IG5

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I5 46 Instrument Panel Wire

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 FOG LIGHT

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

15A 15A
HEAD RH FR FOG
LWR

3 2D 20 IF

R- W
9 IE4
J5
JUNCTION
R- W

CONNECTOR
A A

R- W

L- R
TO COMBINATION R- W
METER

1 5

F12
FRONT FOG
LIGHT RELAY

2 3
J7
JUNCTION
CONNECTOR
L- O C

C C
G- B

L- O

C15 L- O
COMBINATION SW 11

OFF
5 IE4 10 IG4
FOG LIGHT SW
ON

LOW
L- O

L- O

DIMMER SW HIGH

FLASH 2 2
F3 F4
16 17 10 FRONT FRONT
FOG LIGHT FOG LIGHT
1 LH 1 RH
G- W
W- B

W- B

W- B

A
J3 W- B
JUNCTION
CONNECTOR

IE EM IG EA

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 SERVICE HINTS
F12 FRONT FOG LIGHT RELAY
5-3 : Closed with the dimmer SW at LOW position and the fog light SW at ON position

: PARTS LOCATION
Code See Page Code See Page Code See Page
C15 36 32 (1ZZ-FE) J3 37
F4
32 (1ZZ-FE) 34 (2ZZ-GE) J5 37
F3
34 (2ZZ-GE) F12 36 J7 37
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IF 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2D 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE4 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IG4 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
EM Front Left Fender
42 (2ZZ-GE)
IE 44 Cowl Side Panel LH
IG 44 Cowl Side Panel RH

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 TAILLIGHT

3 1
G
10A
TAIL TAIL
RELAY
2 IO
5 2

1 IA 1 4 IC 5 IC 6 IE
TRLY B6 A

G
BODY ECU
T
J4 A , J5 B
5 A
JUNCTION
CONNECTOR
C B
B- R

LG

G
A A A A

14
CONTROL SW

OFF
C15
TAIL COMBINATION
LIGHT

SW

G
HEAD

1 2E 16

FRONT PARKING LIGHT RH

FRONT PARKING LIGHT LH
2
FRONT SIDE MARKER

FRONT SIDE MARKER

120A
ALT
1 1 1 1

LIGHT RH
LIGHT LH

1
F7

F5

F8

F6
2 2 2 2
1 2A
W- B

W- B

W- B

W- B
B- R

W- B

FL MAIN E1 I4
3. 0W
W- B

W- B

BATTERY

A W- B
J3
JUNCTION
CONNECTOR

IE EB IG EA

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 G

5
1
W- B G G

C B
A A
R6
TAILLIGHT LH
[REAR COMB. LIGHT LH]

Downloaded from www.Manualslib.com manuals search engine

5
1
W- B G G
C B
A A

BL
J12 A , J13 B
R7
TAILLIGHT RH JUNCTION
[REAR COMB. LIGHT RH] CONNECTOR
G

2
1
W- B G G G

BK
B2
1 BB1
1 BA1

L1
LICENSE PLATE
LIGHT LH

2004 CELICA (EWD538U)

G

2
1
W- B

L2
LICENSE PLATE
LIGHT RH

101
 TAILLIGHT
SERVICE HINTS
TAIL RELAY
5-3 : Closed with the light control SW at TAIL or HEAD position
C15 COMBINATION SW
14-16 : Closed with the light control SW at TAIL or HEAD position

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 F7 34 (2ZZ-GE) J13 B 38
C15 36 32 (1ZZ-FE) L1 38
F8
32 (1ZZ-FE) 34 (2ZZ-GE) L2 38
F5
34 (2ZZ-GE) J3 37 R6 39
32 (1ZZ-FE) J4 A 37 R7 39
F6
34 (2ZZ-GE) J5 B 37
F7 32 (1ZZ-FE) J12 A 38
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IA
25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IC
IE 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IO 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2A 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2E 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
BA1 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)
BB1 48 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left)

: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
EB Front Left Fender
42 (2ZZ-GE)
IE 44 Cowl Side Panel LH
IG 44 Cowl Side Panel RH
BK 48 Back Door Left
BL 48 Back Panel Center

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
40 (1ZZ-FE) I4 46 Engine Room No.2 Wire
E1 Engine Room Main Wire
42 (2ZZ-GE) B2 48 Back Door No.2 Wire

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 MEMO

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 ILLUMINATION

D D
3 1

7. 5A 7. 5A
TAIL PANEL 1 PANEL 2
RELAY

5 2 6 5

1 IA 1 4 IL 5 IF 8 IM 16 IP 4 IE 17 IF
TRLY
B6 A

G
BODY ECU
T G
5 A

G
B- R

(CANADA)

(CANADA)
LG

(USA)

G- B

G- B

G- B
G

LEVEL CONTROL SW
14

HEADLIGHT BEAM
CONTROL SW

OFF 3 (USA)
C15

HAZARD SW
6 (CANADA) 3 7 8 3

CIGARETTE
TAIL COMBINATION
CLOCK

LIGHTER
LIGHT

SW

A/C SW
C10

HEAD

H15
C9

H7
A9
1 (USA) 1 4 9 6
16 12 (CANADA)

1 2E

120A
(CANADA)

ALT
(USA)

W- G

W- G

W- G
W- B

W- B

W- B

1 2A
W- B

I6
B- R

W- G

FL MAIN
3. 0W
10 IM 4 II 5 IP 1 IE

12 II 20 IM
W- B

W- B
BATTERY
W- B
A (CANADA)
J3
W- B

JUNCTION
CONNECTOR

IE IF

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 * 1 : SEPARATE TYPE AMPLIFIER
* 2 : BUILT- IN TYPE AMPLIFIER

17 IN 19 IM
J8
JUNCTION
CONNECTOR
G E

E E E
G
(CANADA)
G- B

W- G
G- B

R- B

R- B
(* 1)

(* 2)
G

G
RADIO AND PLAYER

RADIO AND PLAYER

R2 A , R3 B

4 B 12 B 5 A
A/T SHIFT LEVER

2 1 3
[O/D MAIN SW]

10 A
ILLUMINATION

RHEOSTAT
T
GLOVE BOX LIGHT

ILLUMINATION
O3

RV E
R4

R5
2

TAIL
5 B
AND SW

12 2 1

COMBINATION METER
METER
G3

C12 A , C13 B

ILLUMINATION
2
W- B

BR
R
19 A 17 A
W- B

R
W- G

W- G

W- G
(* 1)

(* 2)

W- G

10 IN 16 IM 18 IM

W- B

W- B
(CANADA) A
BR

W- B A J10
JUNCTION
(CANADA) CONNECTOR

IH IE

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 ILLUMINATION
SERVICE HINTS
TAIL RELAY
5-3 : Closed with the light control SW at TAIL or HEAD position
C15 COMBINATION SW
14-16 : Closed with the light control SW at TAIL or HEAD position

: PARTS LOCATION
Code See Page Code See Page Code See Page
A9 36 C15 36 J10 37
B6 A 36 G3 37 O3 37
C9 36 H7 37 R2 A 37
C10 36 H15 37 R3 B 37
C12 A 36 J3 37 R4 37
C13 B 36 J8 37 R5 37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IA 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IE
IF
II 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IL
IM
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IP 25 Cowl No.2 Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2A 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2E 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 46 Instrument Panel Wire

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 MEMO

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 INTERIOR LIGHT

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

B B C D B

7. 5A 7. 5A 5A 20A 7. 5A 7. 5A
ECU- B MPX- B BODY DOOR ECU- ACC DOME
ECU- IG

1 6 2 2 2

3 IM
6 IK 13 IN
L- R

B6 A , B7 B

L- W
8 3 5 12 BODY ECU
B IG B ACC

L- W
L MPX1 E DCTY PCTY LSWD LSWP LGCY LP
17 A 16 A 11 20 B 21 B 21 A 20 A 22 B 10 A 1 IB1

L- W
R- W
Y- G

R- L

G
B

LG
20 IM 12 II
W- B

W- B
L- R

[MOON ROOF CONTROL SW]

LUGGAGE ROOM LIGHT

1 B 3 B 11 A 10 IA2 10 IH2 6 IB1 2 A (* 1)
2 B (* 2)
DOOR

PERSONAL LIGHT

PERSONAL LIGHT
1
G
B

DOOR
2

M3 A

P6 B

OFF

L3
ON
COMBINATION METER

R- Y

R
C12 A , C13 B

DETECTION SW RH
DETECTION SW LH

(* 1) 7 A
4 3 (* 2) 1 B

LG
DOOR LOCK

DOOR LOCK

R- W
D5

D6

7 A 12 A 18 B 19 A
3 4
LG- R

W- B
G- O
BR

LG
JUNCTION CONNECTOR
DOOR COURTESY

DOOR COURTESY

4 IE5 13 IE5 1 1
W- B

W- B

J12 A , J13 B

D A D A
LG- R

G- O

SW RH
SW LH
D3

D4

10 B 6 A (1ZZ- FE)
18 E 29 E (2ZZ- GE)
MPX1 MPX2 F B

B
LG

J11
JUNCTION * 1 : W/ MOON ROOF
CONNECTOR * 2 : W/O MOON ROOF
E2 A , E3 B , E8 E B
9 BA1
ENGINE CONTROL MODULE
W- B

LG

14 IA1 14 IH1 4 BB1

LG
W- B

W- B

ROOM LIGHT SW

1
A A
W- B
BR

LUGGAGE

J3 J10
JUNCTION JUNCTION
CONNECTOR CONNECTOR
L4

IH IF IE IH

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 SYSTEM OUTLINE
ILLUMINATED ENTRY SYSTEM
∗ Lights ON condition
When any door (Driver’s side, front passenger’s side, or back door etc.) is opened.
∗ Lights OFF condition
If any of the following conditions are met while the dome light is ON, the light fades out and is turned OFF.
When approximately 15 seconds have elapsed after all doors are closed.
When all doors are closed and the driver’s side door and the front passenger’s side door is locked.
When all the doors are closed with the ignition SW at ACC or ON position.

SERVICE HINTS
D3, D4 DOOR COURTESY SW LH, RH
1-GROUND : Closed with door open
L4 LUGGAGE ROOM LIGHT SW
1-GROUND : Luggage compartment door open

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 D6 38 J12 A 38
B7 B 36 E2 A 32 (1ZZ-FE) J13 B 38
C12 A 36 E3 B 32 (1ZZ-FE) L3 38
C13 B 36 E8 E 34 (2ZZ-GE) L4 38
D3 38 J3 37 M3 A 39
D4 38 J10 37 P6 B 39
D5 38 J11 38
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
II
IK 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IM
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1
44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IA2
IB1 44 Roof Wire and Instrument Panel Wire (Left Kick Panel)
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IH1
46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IH2
BA1 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)
BB1 48 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left)

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH

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 BACK-UP LIGHT

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

5A
BK/UP LP

7 IB
R- L

6 2F

19 2C

R- B B B R- B
R- L

A B

3 A (A/T)
BACK- UP LIGHT SW

BACK- UP LIGHT SW

2 B (M/T)
B R- B
[PARK/NEUTRAL
POSITION SW]

13 II2
J12 A , J13 B
P1 A

B1 B

JUNCTION
2 A (A/T) CONNECTOR
R- B

1 B (M/T)
R- B

R- B

R- B
6 2C 24 2F

[REAR COMB. LIGHT RH]

[REAR COMB. LIGHT LH]

BACK- UP LIGHT RH
BACK- UP LIGHT LH 4 4
23 2F
R6

R7
R- B

5 5

13 IE4
R- B

21

C12
REVERSE WARNING
BUZZER LIGHT
[COMB. METER]
BUZZER
W- B

W- B

7
BR

IH BL

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 SERVICE HINTS
P1 BACK-UP LIGHT SW [PARK/NEUTRAL POSITION SW] (A/T)
3-2 : Closed with the shift lever at R position
B1 BACK-UP LIGHT SW (M/T)
2-1 : Closed with the shift lever in R position

: PARTS LOCATION
Code See Page Code See Page Code See Page
32 (1ZZ-FE) J12 A 38 P1 A 35 (2ZZ-GE)
B1 B
34 (2ZZ-GE) J13 B 38 R6 39
C12 36 P1 A 33 (1ZZ-FE) R7 39
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2C 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2F 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE4 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

IH 44 Cowl Side Panel RH
BL 48 Back Panel Center

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 STOP LIGHT

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

10A
STOP

2 IK
G- B

S8
STOP LIGHT
SW

1
G- W

9 IK

11 IO
G- W

G- W

C A C A
J12 A , J13 B
JUNCTION CONNECTOR

A B A B
G- W

G- W

3 BA1
G- W

G- W

G- W

2 2 2

H10 R6 R7
HIGH MOUNTED STOP LIGHT LH STOP LIGHT RH
STOP LIGHT [REAR COMB. [REAR COMB.
LIGHT LH] LIGHT RH]
1 5 5
W- B

2 BA1
W- B

W- B

W- B

A
J14
JUNCTION
CONNECTOR

BJ BL

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 SERVICE HINTS
S8 STOP LIGHT SW
2-1 : Closed with the brake pedal depressed

: PARTS LOCATION
Code See Page Code See Page Code See Page
H10 38 J14 38 S8 37
J12 A 38 R6 39
J13 B 38 R7 39
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IK 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IO 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
BA1 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)

: GROUND POINTS

Code See Page Ground Points Location

BJ 48 Luggage Room Left
BL 48 Back Panel Center

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 TURN SIGNAL AND HAZARD WARNING LIGHT

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

7. 5A 10A
TURN HAZ

3 IE 29 2F

R
4
G G
IE4

7 6
C15
B1 B2 F TL TB TR TURN SIGNAL SW
[COMB. SW]

OFF LH

ON RH

H7 5 1 4 2 2 1 3
HAZARD SW

G- W
G- B

G- Y
L- O

G- B

G- Y
B
G- W B B G- W

3 1 J7
T2 JUNCTION
TURN B L
CONNECTOR
SIGNAL
FLASHER E
RELAY
G- B

2
G- B

W- B
5 IE 9 IE

7 IC 12 IO 14 IM 1 IM 13 IO 2 IE

G- Y
G- B

G- B

G- B

G- Y

G- Y

G- Y

G- Y

D B D B D B

J4 A , J5 B
JUNCTION
CONNECTOR

E A
[REAR COMB. LIGHT RH]
[REAR COMB. LIGHT LH]

G- Y

4 A 9 B
FRONT TURN SIGNAL

FRONT TURN SIGNAL

3 3
REAR TURN SIGNAL

REAR TURN SIGNAL

1 1
TURN R
TURN L

LIGHT RH

LIGHT RH
LIGHT LH

LIGHT LH

2 2
5 5
F10
R6

R7
F9

19 A
C12 A , C13 B
W- B

TURN SIGNAL
INDICATOR LIGHT
[COMB. METER]
20 IM
W- B

12 II
W- B

W- B

W- B

W- B

W- B

A
W- B J3
JUNCTION
CONNECTOR

EB BL IF IG EA IE

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 SERVICE HINTS
T2 TURN SIGNAL FLASHER RELAY
3-GROUND : Approx. 12 volts with the ignition SW on or the hazard SW on
1-GROUND : Changes from 12 to 0 volts with the ignition SW on and the turn signal SW LH or RH position,
and with the hazard SW on
2-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
C12 A 36 32 (1ZZ-FE) J5 B 37
F10
C13 B 36 34 (2ZZ-GE) J7 37
C15 36 H7 37 R6 39
32 (1ZZ-FE) J3 37 R7 39
F9
34 (2ZZ-GE) J4 A 37 T2 37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IC 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IE
II 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IM
IO 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2F 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE4 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
EB Front Left Fender
42 (2ZZ-GE)
IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IG 44 Cowl Side Panel RH
BL 48 Back Panel Center

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 LIGHT REMINDER BUZZER

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

1 B C D

120A 7. 5A 5A 20A 7. 5A
ALT MPX- B BODY DOOR ECU-
ECU- IG ACC

2 6 2 2

1 2E
B- R

1 IA

5 2

TAIL 8 3 5 12
RELAY B IG B ACC

3 1

TRLY T DCTY E
1 5 A 20 B 11
B6 A , B7 B
BODY ECU
LG

12 II

W- B
R- Y
LG

14
CONTROL SW

OFF
DOOR COURTESY

1
TAIL
LIGHT

HEAD
SW LH
D3

LOW
DIMMER SW

HIGH

FLASH

C15 16
COMBINATION
SW
W- B
W- B

A
J3
W- B

JUNCTION
CONNECTOR

IE IF

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 SYSTEM OUTLINE
When the ignition SW is OFF and the driver’s side door is opened (Door courtesy SW ON) and the light control SW is at TAIL
or HEAD position, the light reminder buzzer comes ON.

SERVICE HINTS
D3 DOOR COURTESY SW LH
1-GROUND : Driver’s door open

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 C15 36 J3 37
B7 B 36 D3 38
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IA 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
II 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2E 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH

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 MULTIPLEX COMMUNICATION SYSTEM (COMMUNICATION BUS)

* 1 : 1ZZ- FE
* 2 : 2ZZ- GE

B6
BODY ECU

L MPX1
17 16

Y- G

R- L
1 B 3 B
L TX+
C12 A , C13 B
COMBINATION
METER
MPX+ MPX-
12 A 18 B
LG- R

G- O

4 IE5 13 IE5
LG- R

G- O

10 B 6 A (*1)
18 E 29 E (*2)
MPX1 MPX2
E2 A , E3 B , E8 E
ENGINE CONTROL
MODULE

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 MULTIPLEX COMMUNICATION SYSTEM INCLUDES FOLLOWING SYSTEMS
∗ DOOR LOCK CONTROL
∗ ELECTRONIC TENSION REDUCER
∗ HEADLIGHT
∗ INTERIOR LIGHT
∗ KEY REMINDER
∗ LIGHT REMINDER BUZZER
∗ MOON ROOF
∗ POWER WINDOW
∗ SEAT BELT WARNING
∗ WIRELESS DOOR LOCK CONTROL

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 MULTIPLEX COMMUNICATION SYSTEM

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

1 1 C 1 B C

20A 40A 120A 5A 30A 7. 5A 5A 20A

HEAD MAIN ALT DEF DEF MPX- B BODY DOOR
RH UPR RLY ECU- IG

2 2 5 2 6 2

11 2D 5 2H 1 2H 1 2E

B- R
(*1)

(*2)

(*2)
R

R
(* 1)
2 2 1 IA

2 5

3 2 5 2
DIMMER RELAY

DEF
TAIL RELAY

RELAY
DRL NO. 2

1 3

5 1 3 1

2 2
W- L

L- W

11 IN 7 IP 1 IN 3 IN

9
L- W L- W
II2

R- L
R- W
R- L

R
B

17 2F

3 2

HEAD 5
RELAY RDEF
A/C SW

5 1
A9

1 2A
B- R

FL MAIN
3. 0W

R
BATTERY

* 1 : W/ DAYTIME RUNNING LIGHT

* 2 : W/O DAYTIME RUNNING LIGHT

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52)
B6 A , B7 B
D BODY ECU

7. 5A
ECU-
ACC
ACC B IG B DEFB DEF TRLY DRL HRLY HF H T HU
2 12 5 3 8 2 4 1 17 B 10 12 A 18 A 5 A 19 A

L- W

P- B

R- L

P- L
LG
1 IB

R- L

P- B

R- L

P- L
LG
8 13 14 7

CONTROL SW
OFF

TAIL

LIGHT
HEAD

LOW

DIMMER SW
L- W

HIGH

R- L FLASH

C15 16
COMBINATION
SW

W- B

R R

R R
W- B

A
J3
JUNCTION
CONNECTOR

IE

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 MULTIPLEX COMMUNICATION SYSTEM

B6 A , B7 B
BODY ECU

CLTS CLTE CLTB ACTD LSWD ACT+ L2 ACT-

3 A 24 A 4 A 13 A 21 A 9 6 7

L- R

B
LG- R
LG- B

G- W

6 IL 9 IF 5 IL 2 IL 8 IF

L- W Y- B

L- W
Y- B

L- R
BR
Y- B

BR
1 IA2 5 IA2 10 IA2 6 IA2 2 IA2 1 IH2 5 IH2 10 IH2 6 IH2 2 IH2
L- W

L- W
L- R

L- R
Y- B

Y- B
BR

BR
G
B

4 3 1 2 1 4 5 6 6 5 3 2 1
CLTS CLTE CLTB

M M

A14
AUTOMATIC LIGHT
CONTROL SENSOR
D5 3 D6 4
DOOR LOCK MOTOR, DOOR LOCK MOTOR,
DOOR LOCK DOOR LOCK
W- B

DETECTION SW DETECTION SW
AND DOOR KEY AND DOOR KEY
LOCK AND LOCK AND
UNLOCK SW LH UNLOCK SW RH
W- B

B
J11
JUNCTION
CONNECTOR
B
W- B

14 IA1 14 IH1

R R

R R

W- B
W- B

W- B

A A
J3 A W- B J10
JUNCTION JUNCTION
CONNECTOR CONNECTOR

IE IH

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 B6 A , B7 B
BODY ECU

UL3 LSWP UL2 SG1 KSW DCTY PCTY

25 A 20 A 22 A 11 A 9 A 20 B 21 B

Y- B

Y- B
G

W- L

R- Y

R
7 IO 4 IO

Y- B

Y- B
L- W

L- R

5 BA1 10 BA1
L- W

L- R

5 BB1 6 BB1

DOOR COURTESY

DOOR COURTESY
L- W

L- R

2 1 1
Y
U1
UNLOCK

SW RH
SW LH
2 1
M WARNING

D3

D4
SW
B10 1
BACK DOOR
LOCK MOTOR

R R

R R

W- B W- B

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 MULTIPLEX COMMUNICATION SYSTEM

B6 A , B7 B
BODY ECU

PRG RDA SG2 DBKL SG3 PBKL

9 B 10 B 1 B 7 B 2 B 14 B
FROM POWER SOURCE SYSTEM
(SEE PAGE 52)

W- L
R- B

L- Y
W
5A
V

L
TENS
RDC

14 IN 16 IN

3 2 1 2 1 2
PRG RDA

+B GND
R- L

R- L

5 D2 1
DOOR
CONTROL
RECEIVER 3 B8 3 B9
BUCKLE SW BUCKLE SW
LH RH
W- B
R

R- W
R

2 2

T3 T4
TENSION REDUCER TENSION REDUCER
SOLENOID LH SOLENOID RH

1 1
W- B

R R

W- B

A W- B
J14
JUNCTION
CONNECTOR

BJ

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 * 3 : W/ MOON ROOF
B6 A , B7 B * 4 : W/O MOON ROOF

BODY ECU

LP LGCY BLTW SG4 PKB FU- FUA FU+

10 A 22 B 18 B 4 B 19 B 3 B 12 B 13 B
FROM POWER SOURCE SYSTEM
(SEE PAGE 52)

R- W

LG
7. 5A
DOME

BR- W
W- R

Y- G
Y- R
R- B
P
2

13 IN 6 IK
L- W
L- W

1 IB1 6 IB1
R- W
L- W
LUGGAGE COMPARTMENT

[MOON ROOF CONTROL SW]

2 A (*3)
2 B (*4) 11 4 1 3 2 1
1

BRAKE SW
LBE+ E FE FR FV

PARKING
PERSONAL LIGHT

PERSONAL LIGHT
LIGHT

P3
L3

DOOR

2
OFF
ON

C7 O3 F17
M3 A

P6 B

CENTER AIRBAG O/D MAIN FUEL SENDER

SENSOR SW
ASSEMBLY
(*3) 7 A
LG

(*4) 1 B

LG

LG
J12 A , J13 B

D A D A
CONNECTOR

7 BB1
JUNCTION

LG

F B

1
9 BA1
L4
LG LUGGAGE COMPARTMENT
LIGHT SW

W- B W- B

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 MULTIPLEX COMMUNICATION SYSTEM

B6 A , B7 B
BODY ECU

BLVL L MPX1 PWS E L1 UL1 P/W

2 A 17 A 16 A 1 A 11 15 B 16 B 11 B
FROM POWER SOURCE SYSTEM (SEE PAGE 52)

B A

V- W

P- B

Y- B
20 IM 12 II 1 IO

GR
R

7. 5A 5A

W- B

W- B

W- B
ECU- B WARNING
5 IB1
5 6 7
6 IE4 1 6 L UL KOF

3 IM 11 IM

GR
R
BRAKE FLUID LEVEL

2 17
1 E
WARNING SW
B2

Y- G

R- Y
L- R
R- L

M2
2 MOON ROOF
CONTROL

POWER WINDOW
RELAY
W- B

AND MOTOR

MASTER SW
1 B 3 B 11 A 22 A
FASTEN BELT

P5
DOOR

BUZZER DU DD
COMBINATION METER

9 18
C12 A , C13 B

LG
G
8 IF1 9 IF1

LG
G
7 A 12 A 18 B 19 A
8 IA2 7 IA2
LG- R

W- B
G- O
BR

LG
G

4 IE5 13 IE5
1 2
LG- R

G- O

10 B 6 A (1ZZ- FE)
18 E 29 E (2ZZ- GE)
MPX1 MPX2
M

P7
POWER WINDOW
E2 A , E3 B , E8 E MOTOR LH
ENGINE CONTROL MODULE
R R

W- B W- B
W- B

W- B
BR

EB IH IF

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52)
B6 A , B7 B
BODY ECU

FR P/W

FL P/W
HORN
10A

20A
20A
HORN
14 A

5 IO 8 IO

L- B
1 5

HORN RELAY
P5
POWER WINDOW MASTER SW

L- B

L- Y
2 3

2 2D

L- B
3 IE5

L- B
A
L- B A J8
JUNCTION
CONNECTOR
PU PD IG W/L BDR +B
1 10 12 16 11 2
R- B
L

W- R

L- Y

L- B
R

7 IF1 2 IF1

3 IF1
R- B
L

W- R

8 IH2 7 IH2
POWER WINDOW

7
R- B
L

LOCK SW

2 1
P4

10
W- B

P8
POWER WINDOW
MOTOR RH

W- B

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 MULTIPLEX COMMUNICATION SYSTEM
SERVICE HINTS
BODY ECU
3-GROUND : Approx. 12 volts with ignition SW at ON or ST position
8-GROUND : Always approx. 12 volts
5-GROUND : Always approx. 12 volts
11-GROUND : Always continuity
12-GROUND : Approx. 12 volts with ignition SW at ACC or ON position

: PARTS LOCATION
Code See Page Code See Page Code See Page
A9 36 D4 38 L4 38
A14 36 D5 38 M2 39
32 (1ZZ-FE) D6 38 M3 A 39
B2
34 (2ZZ-GE) E2 A 32 (1ZZ-FE) O3 37
B6 A 36 E3 B 32 (1ZZ-FE) P3 37
B7 B 36 E8 E 34 (2ZZ-GE) P4 37
B8 36 F17 38 P5 37
B9 36 J3 37 P6 B 39
B10 38 J8 37 P7 39
C7 36 J10 37 P8 39
C12 A 36 J11 38 T3 39
C13 B 36 J12 A 38 T4 39
C15 36 J13 B 38 U1 37
D2 38 J14 38
D3 38 L3 38

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

2 27 Engine Room R/B No.2 (Engine Compartment Left)
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IA
25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IB
IF
II
IK 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IL
IM
IN
25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IO
IP 25 Cowl No.2 Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2A 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2D
2E
23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F
2H

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 : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1
44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IA2
IB1 44 Roof Wire and Instrument Panel Wire (Left Kick Panel)
IE4
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5
IF1 46 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IH1
46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IH2
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)
BA1 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)
BB1 48 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left)

: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EB Front Left Fender
42 (2ZZ-GE)
IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH
BJ 48 Luggage Room Left

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 WIRELESS DOOR LOCK CONTROL

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

B C D

7. 5A 5A 20A 7. 5A
MPX- B BODY DOOR ECU-
ECU- IG ACC

6 2 2
U1
UNLOCK
WARNING SW
Y 1 2 W- L

3 IN 8 3 5 12 9 A 11 A
B IG B ACC KSW SG1

B6 A , B7 B
BODY ECU

PRG RDA DCTY PCTY UL3 LSWD ACTD ACT+ L2

9 B 10 B 20 B 21 B 25 A 21 A 13 A 9 6
R- B

R- Y

Y- B

L- R
R

R
V

B
6 IL 9 IF

L- W

BR
3 2
PRG RDA

+B GND
5 D2 1 10 IA2 5 IA2 1 IA2 2 IA2 6 IA2
DOOR
CONTROL
W- B
R

RECEIVER
L- W

Y- B
L- R

BR
B
DOOR COURTESY

DOOR COURTESY

1 1

4 1 2 6 5
SW RH
SW LH
D3

D4

3 D5
DOOR LOCK MOTOR,
W- B

DOOR LOCK DETECTION

SW AND DOOR KEY LOCK
AND UNLOCK SW LH
B
J11
JUNCTION
CONNECTOR
B
W- B

14 IA1
W- B

W- B

A A
J14 J3
JUNCTION JUNCTION
CONNECTOR CONNECTOR

BJ IE

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 * 1 : 1ZZ- FE FROM POWER SOURCE SYSTEM (SEE PAGE 52)
* 2 : 2ZZ- GE

4 IE5 13 IE5 10A

LG- R
G- O
HORN
LG- R

G- O
6 A 10 B (* 1)
C12 A , C13 B

J8
18 E (* 2)
COMBINATION

12 A 18 B 29 E JUNCTION HORN
MPX+ MPX- MPX2 MPX1 CONNECTOR RELAY
3 2
A A L- B L- B 2 1
METER

IE5 2D
L TX+
3 5

L- B
1 B 3 B
E2 A , E3 B , E8 E
Y- G

R- L

ENGINE CONTROL
MODULE

17 A 16 A 14 A
L MPX1 HORN

B6 A , B7 B
BODY ECU

ACT- UL2 LSWP L1 UL1 E LGCY

7 22 A 20 A 15 B 16 B 11 22 B

V- W

P- B

LG
7 IO 4 IO 5 IL 2 IL 8 IF 1 IO 12 II
L- W

L- R

W- B

JUNCTION CONNECTOR
L- W

L- R

Y- B
BR

J12 A , J13 B
5 BA1 10 BA1
D A

1 IH2 5 IH2 6 IH2 2 IH2 10 IH2

L- W

L- R

[POWER WINDOW MASTER SW] F B

L- W

Y- B
L- R

BR

DOOR LOCK CONTROL SW

5 BB1 6 BB1 6 5 2 1 3 5 6

LG
L UL
L- W

L- R

M
E 9 BA1
P5

17
2 1
M
LG

B10 D6 W- B
4
BACK DOOR DOOR LOCK MOTOR,
LOCK MOTOR DOOR LOCK DETECTION
SW AND DOOR KEY LOCK
AND UNLOCK SW RH
W- B

7 BB1
LUGGAGE ROOM LIGHT SW
LG

1
14 IH1
W- B

L4

A
J10
W- B

JUNCTION
CONNECTOR

IH IF

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 WIRELESS DOOR LOCK CONTROL
SYSTEM OUTLINE
In this system, the door control receiver receives weak radio wave transmitted from the transmitter built into the ignition key,
and outputs signals to the body ECU. Through communication control of the body ECU, all the doors can be locked and
unlocked by remote control.
1. NORMAL OPERATION
∗ Lock operation
When the lock SW on the transmitter is pressed, all doors are locked.
∗ Unlock operation
When the unlock SW on the transmitter is pressed once, only the driver door is unlocked. When the unlock SW is pressed
again within 3 seconds, all the doors are unlocked.
2. AUTO LOCK FUNCTION
If the door is not opened within 30 seconds after the door has been unlocked by pressing the unlock SW on the transmitter,
all the doors will be locked automatically.
3. WIRELESS DOOR LOCK STOP FUNCTION
If any of the following conditions is detected, the wireless door lock does not function.
∗ Lock operation
Any door is open (The door courtesy SW is on). The ignition key is inserted into the ignition key cylinder (The unlock
warning SW is on). The ignition SW is turned to the ON position.
∗ Unlock operation
The ignition SW is turned to the ON position.
4. BUZZER SOUND FUNCTION
The buzzer emits a sound when operating the transmitter, once for lock operation and twice for unlock operation.
When the lock SW is pressed while any door is open, the keyless buzzer goes on for 10 seconds. The buzzer will stop when
all the doors are closed, or when unlocked with the unlock SW.
5. ILLUMINATED ENTRY FUNCTION
When the ECU detects the unlock state after the unlock operation has been made, it turns on the front interior light, such as
the ignition key cylinder light for 15 sec. If all the doors are locked during this operation, lighting is cancelled and the lights
immediately fade out.
6. REPEAT FUNCTION
If the lock detection signal in response to the output signal is not received after the body ECU has output the lock signal, the
lock signal is output again after approximately 2 sec.
7. PANIC FUNCTION
When the panic SW on the transmitter is pressed, the panic mode is activated. The panic mode is canceled when the unlock
SW or panic SW is pressed.

SERVICE HINTS
U1 UNLOCK WARNING SW
2-1 : Closed with the ignition key in the cylinder
D2 DOOR CONTROL RECEIVER
5-GROUND : Always approx. 12 volts
1-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 D5 38 J11 38
B7 B 36 D6 38 J12 A 38
B10 38 E2 A 32 (1ZZ-FE) J13 B 38
C12 A 36 E3 B 32 (1ZZ-FE) J14 38
C13 B 36 E8 E 34 (2ZZ-GE) L4 38
D2 38 J3 37 P5 37
D3 38 J8 37 U1 37
D4 38 J10 37

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 ,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IF
II 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IL
IN
25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IO
2D 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1
44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IA2
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IH1
46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IH2
BA1 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)
BB1 48 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left)

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH
BJ 48 Luggage Room Left

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 DOOR LOCK CONTROL

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

B C D

7. 5A 5A 20A 7. 5A
MPX- B BODY DOOR ECU-
ECU- IG ACC

6 2 2 U1
UNLOCK
WARNING SW
Y 1 2 W- L

8 3 5 12 9 A 11 A
B IG B ACC KSW SG1

B6 A , B7 B
BODY ECU

DCTY PCTY UL3 LSWD ACTD ACT+ L2

20 B 21 B 25 A 21 A 13 A 9 6
R- Y

L- R
Y- B
R

6 IL 9 IF

L- W

BR
10 IA2 5 IA2 1 IA2 2 IA2 6 IA2
L- W

Y- B
L- R

BR
B
DOOR COURTESY

DOOR COURTESY

1 1

4 1 2 6 5
SW RH
SW LH
D3

D4

3 D5
DOOR LOCK MOTOR,
W- B

DOOR LOCK DETECTION

SW AND DOOR KEY LOCK
AND UNLOCK SW LH
B
J11
JUNCTION
CONNECTOR
B
W- B

14 IA1
W- B

A
J3
JUNCTION
CONNECTOR

IE

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 4 IE5 13 IE5

LG- R
G- O
LG- R

G- O
6 A 10 B (1ZZ- FE)
C12 A , C13 B

18 E (2ZZ- GE)
COMBINATION

12 A 18 B 29 E
MPX+ MPX- MPX2 MPX1
METER

L TX+
1 B 3 B
E2 A , E3 B , E8 E
Y- G

R- L

ENGINE CONTROL
MODULE

17 A 16 A
L MPX1

B6 A , B7 B
BODY ECU

ACT- UL2 LSWP L1 UL1 E

7 22 A 20 A 15 B 16 B 11

V- W

P- B
7 IO 4 IO 5 IL 2 IL 8 IF 1 IO 12 II
L- W

L- R

W- B
L- W

Y- B
L- R

BR

5 BA1 10 BA1

1 IH2 5 IH2 6 IH2 2 IH2 10 IH2

L- W

L- R

L- W

Y- B
L- R

[POWER WINDOW MASTER SW]

BR

DOOR LOCK CONTROL SW

5 BB1 6 BB1
6 5 2 1 3 5 6
L UL
L- W

L- R

M
E
2 1
P5

M 17

B10
BACK DOOR D6 W- B
4
LOCK MOTOR DOOR LOCK MOTOR,
DOOR LOCK DETECTION
SW AND DOOR KEY LOCK
AND UNLOCK SW RH
W- B

14 IH1
W- B

A
J10
W- B

JUNCTION
CONNECTOR

IH IF

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 DOOR LOCK CONTROL
SYSTEM OUTLINE
1. MANUAL UNLOCK OPERATION
When the door lock control SW on the center console is pressed to the UNLOCK, the signal is input to TERMINAL UL1 of
the body ECU. The current flows from TERMINAL ACT- of the body ECU into the door lock motor to TERMINAL ACT+ of
the body ECU to GROUND, to unlock the door.
2. MANUAL LOCK OPERATION
When the door lock control SW on the center console is pressed to LOCK, signal is input to TERMINAL L1 of the body ECU.
The current flows from TERMINAL ACT+ of the body ECU to door lock motor to TERMINAL ACT- of the body ECU to
GROUND, to lock the door.
3. DOOR KEY UNLOCK OPERATION
Unlock operation from driver door
When the door is unlocked once by the ignition key from the driver side, the signal from the door key lock and unlock SW in
the door lock motor front LH is input to TERMINAL UL3 of the body ECU. This signal activates the body ECU to flow the
current from TERMINAL ACT+ of the body ECU into the door lock motor front LH to TERMINAL ACT- of the body ECU to
GROUND, to unlock only the driver door. Accordingly, if the second unlock operation is made within 3 sec. after the above
unlock operation.
Unlock operation from passenger door
When the door is unlocked by the ignition key from the passenger side, the signal from the door key lock and unlock SW in
the door lock motor front RH is input to TERMINAL UL2 of the body ECU. The current flows from TERMINAL ACT- of the
body ECU into the door lock motor front RH to TERMINAL ACT+ of the body ECU to GROUND, to unlock all the doors at
once.
4. IGNITION KEY REMINDER OPERATION
When the door lock operation is made using the door knob with the ignition key remained inserted in the key cylinder and the
door open, unlock operation is automatically made. Additionally, if lock operation is made with the door lock control SW or
door key lock and unlock SW, unlock operation is automatically made after the lock operation has been completed.

SERVICE HINTS
D3, D4 DOOR COURTESY SW LH, RH
1-GROUND : Closed with door open
P5 DOOR LOCK CONTROL SW [POWER WINDOW MASTER SW]
5-17 : Closed with LOCK position
6-17 : Closed with UNLOCK position
D5 DOOR LOCK MOTOR, DOOR LOCK DETECTION SW AND DOOR KEY LOCK AND LOCK SW LH
2-GROUND : Approx. 12 volts with door lock motor at lock operate
1-GROUND : Approx. 12 volts with door lock motor at unlock operate
5-3 : Closed with door lock cylinder locked with key
6-3 : Closed with door lock cylinder unlocked with key
D6 DOOR LOCK MOTOR, DOOR LOCK DETECTION SW AND DOOR KEY LOCK AND LOCK SW RH
6-GROUND : Approx. 12 volts with door lock motor at lock operate
5-GROUND : Approx. 12 volts with door lock motor at unlock operate
2-4 : Closed with door lock cylinder locked with key
1-4 : Closed with door lock cylinder unlocked with key

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 D4 38 J3 37
B7 B 36 D5 38 J10 37
B10 38 D6 38 J11 38
C12 A 36 E2 A 32 (1ZZ-FE) P5 37
C13 B 36 E3 B 32 (1ZZ-FE) U1 37
D3 38 E8 E 34 (2ZZ-GE)

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 ,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IF
II 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IL
IO 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1
44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IA2
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IH1
46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IH2
BA1 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)
BB1 48 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left)

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH

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 POWER WINDOW

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

C12 A , C13 B
B C D COMBINATION METER

7. 5A 5A 20A 7. 5A
MPX- B BODY DOOR ECU- ACC
ECU- IG L TX+ MPX+ MPX-
1 B 3 B 12 A 18 B
6 2 2

LG- R

G- O
Y- G

R- L
4 IE5 13 IE5
8 3 5 12 17 A 16 A

LG- R
B IG B ACC L MPX1

G- O
B6 A , B7 B
BODY ECU 10 B 6 A (* 1)
18 E 29 E (* 2)
DCTY PCTY E P/W MPX1 MPX2
20 B 21 B 11 11 B

Y- B
12 II 1 IO
E2 A , E3 B , E8 E
P5
ENGINE CONTROL MODULE
W- B

W- B

POWER WINDOW
7 MASTER SW
R- Y

KOF
R
DOOR COURTESY

DOOR COURTESY

1 1
SW RH
SW LH
D3

D4

E W/L
17 16
W- R
W- B

3 IF1
W- R

P4
POWER WINDOW
LOCK SW

10
W- B

A
W- B

J3
JUNCTION
CONNECTOR

IF IE

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52) * 1 : 1ZZ- FE
* 2 : 2ZZ- GE

20A 20A 5A
FL P/W FR P/W DEF
RLY

8 IO 5 IO 11 IN
L- Y

L- B

P5
POWER WINDOW
11 2 12 MASTER SW
BDR +B IG

DU DD PU PD
9 18 1 10
R- B
LG
G

8 IF1 9 IF1 7 IF1 2 IF1

R- B
LG
G

8 IA2 7 IA2 8 IH2 7 IH2

R- B
LG
G

1 2 2 1

M M

P7 P8
POWER WINDOW POWER WINDOW
MOTOR LH MOTOR RH

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 POWER WINDOW
SYSTEM OUTLINE
1. MANUAL OPERATION BY POWER WINDOW SW (DRIVER’S WINDOW)
With the ignition SW turned on and with the power window master SW (Driver’s side) in UP position, current to TERMINAL 2
of the power window master SW flows to TERMINAL 9 of the master SW to TERMINAL 1 of the power window motor LH to
motor to TERMINAL 2 to TERMINAL 17 of the master SW to GROUND, causing the power window motor to rotate in the up
direction. The window ascends only while the SW is being pushed. In down operation, the flow of current from TERMINAL 2
of the power window master SW to TERMINAL 18 of the master SW causes the flow of current from TERMINAL 2 of the
motor to motor to TERMINAL 1 to TERMINAL 5 of the master SW to TERMINAL 17 to GROUND, flowing in the opposite
direction to manual up operation, causing the motor to rotate in reverse and lowering the window.
2. AUTO DOWN OPERATION (DRIVER’S WINDOW)
With the ignition SW on and the driver’s SW of the power window master SW in DOWN position, current to TERMINAL 2 of
the master SW flows to TERMINAL 18 of the master SW to TERMINAL 2 of the power window motor LH to motor to
TERMINAL 1 to TERMINAL 9 of the master SW to TERMINAL 17 to GROUND, causing the motor to rotate towards the
down side. Then the control unit in the master SW is activated and it locks the driver’s SW being pushed, causing the motor
to continue to rotate in auto down operation.
When the window has completely descended, the current flowing between TERMINAL 9 of the master SW and TERMINAL
17 increases. As a result, the solenoid stops operating, the driver’s SW turns off and the flow from TERMINAL 2 of the
master SW to TERMINAL 18 is cut off, stopping the motor so that auto stop occurs.
3. STOPPING OF AUTO DOWN OPERATION (DRIVER’S WINDOW)
When the driver’s SW is pushed to the up side during auto down operation, a ground circuit opens in the master SW and
current does not flow from TERMINAL 9 of the master SW to TERMINAL 16, so the motor stops, causing auto down
operation to stop. If the driver’s SW is pushed continuously, the motor rotates in the up direction in manual up operation.
4. MANUAL OPERATION BY POWER WINDOW SW (PASSENGER’S WINDOW)
With power window master SW (Passenger’s side) pushed to the up side, current from TERMINAL 11 of the power window
master SW flows to TERMINAL 1 of the power window master SW to TERMINAL 2 of the window motor RH to motor to
TERMINAL 1 to TERMINAL 10 of the power window master SW to TERMINAL 16 to TERMINAL 7 of the window lock SW to
TERMINAL 10 to GROUND, causing the power window motor RH to rotate in the up direction. Up operation continues only
while the power window master SW is pushed to the up side. When the window descends, current to the motor flows in the
opposite direction, from TERMINAL 1 to motor to TERMINAL 2, and the motor rotates in reverse. When the window lock SW
is pushed out to the normal side, the ground circuit to the passenger’s window becomes open.
As a result, even if Open/Close operation of the passenger’s window is tried, current from TERMINAL 11 of the power
window master SW is not grounded and the motor does not rotate, so the passenger’s window cannot be operated and
window lock occurs.
5. KEY OFF POWER WINDOW OPERATION
Within approx. 43 sec. after the ignition SW is turned from on to off, the power window can be operated. However, if the
driver or passenger door is opened during this period of time, the power window operation is stopped even through 43 sec.
have not elapsed.

SERVICE HINTS
D3, D4 DOOR COURTESY SW LH, RH
1-GROUND : Closed with the door open
P5 POWER WINDOW MASTER SW
17-GROUND : Always continuity
12-GROUND : Approx. 12 volts with the ignition SW on
9-GROUND : Approx. 12 volts with the ignition SW at ON position and the master SW at UP position
18-GROUND : Approx. 12 volts with the ignition SW at ON position and the master SW at DOWN or AUTO DOWN position
P4 POWER WINDOW LOCK SW
7-10 : Open with the window lock SW at LOCK position

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 D4 38 P4 37
B7 B 36 E2 A 32 (1ZZ-FE) P5 37
C12 A 36 E3 B 32 (1ZZ-FE) P7 39
C13 B 36 E8 E 34 (2ZZ-GE) P8 39
D3 38 J3 37

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 ,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
II 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IN
25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IO

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA2 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IF1 46 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IH2 46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH

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 MOON ROOF

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

B C D C

7. 5A 5A 20A 7. 5A 5A 15A
MPX- B BODY DOOR ECU- ACC TENS S/ROOF
ECU- IG RDC

6 2 2 1

7 IK 1 IK

8 3 5 12

R- L
B IG B ACC B6 A , B7 B
BODY ECU

L- R
C
J8
JUNCTION
E DCTY PCTY PWS CONNECTOR
11 20 B 21 B 1 A C

R- L
12 II GR
W- B

R- Y

5 IB1 3 IB1 4 IB1

L- R
R- L
GR

M2
MOON ROOF CONTROL
DOOR COURTESY

DOOR COURTESY

1 1 2 RELAY AND MOTOR 8 5

SW RH
SW LH
D3

D4

M MOON ROOF CONTROL RELAY

MOON ROOF MOTOR

AND LIMIT SW

9 10 7 1
W- B

W- B
G- Y
P

3 4 7 IB1
OPN CLS
M3
MOON ROOF
W- B

CONTROL
SW
OPEN CLOSE
CONNECTOR
JUNCTION

E A
8
J9

A
W- B

CONNECTOR
JUNCTION

A
W- B

W- B

W- B
J10

IF BI IH

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 SYSTEM OUTLINE
KEY OFF MOON ROOF OPERATION
Within approx. 43 sec. after the ignition SW is turned from on to off, the moon roof can be operated. However, if the driver or
passenger door is opened during this period of time, the moon roof operation is stopped even through 43 sec. have not
elapsed.

SERVICE HINTS
M2 MOON ROOF CONTROL RELAY AND MOTOR
1, 7-GROUND : Always continuity
8-GROUND : Approx. 12 volts with the ignition SW at ON position
10-GROUND : Approx. 12 volts with the ignition SW on and the moon roof control SW at CLOSE or UP position
9-GROUND : Approx. 12 volts with the ignition SW on and the moon roof control SW at OPEN or DOWN position
M3 MOON ROOF CONTROL SW
4-8 : Closed with the moon roof control SW at CLOSE position
3-8 : Closed with the moon roof control SW at OPEN position
8-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 D4 38 J10 37
B7 B 36 J8 37 M2 39
D3 38 J9 37 M3 39
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 44 Roof Wire and Instrument Panel Wire (Left Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH
BI 48 Roof Left

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 ELECTRIC TENSION REDUCER

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

B C D C

7. 5A 5A 20A 7. 5A 5A
MPX- B BODY DOOR ECU- TENS
ECU- IG ACC RDC

6 2 2 1

16 IN 14 IN

R- L

R- L
1 1

T3 T4
TENSION TENSION
REDUCER REDUCER
SOLENOID LH SOLENOID RH
2 2

R- W
R
3 3

BUCKLE SW RH
BUCKLE SW LH
B8

B9
1 2 1 2
W- L

L- Y
W
8 3 5 12 1 B 7 BL 2 B 14 B
B IG B ACC SG2 DBKL SG3 PBKL

L MPX1 E
17 A 16 A 11 B6 A , B7 B
BODY ECU
Y- G

R- L

12 II

1 B 3 B
L TX+ C12 A , C13 B
COMBINATION
METER
MPX+ MPX-
12 A 18 B
W- B
LG- R

G- O

4 IE5 13 IE5
LG- R

G- O

10 B 6 A (1ZZ- FE)
18 B 29 A (2ZZ- GE)
MPX1 MPX2 E2 A , E3 B , E8 E
ENGINE CONTROL
MODULE

IF

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 SERVICE HINTS
B8 BUCKLE SW LH
1-3 : Closed with the driver’s seat belt in use
B9 BUCKLE SW RH
1-3 : Closed with the passenger’s seat belt in use
T3, T4 TENSION REDUCER SOLENOID LH, RH
1-GROUND : Approx. 12 volts with the ignition SW at ON position

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 C12 A 36 E8 E 34 (2ZZ-GE)
B7 B 36 C13 B 36 T3 39
B8 36 E2 A 32 (1ZZ-FE) T4 39
B9 36 E3 B 32 (1ZZ-FE)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
II 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH

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 KEY REMINDER AND SEAT BELT WARNING

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

B C D

7. 5A 5A 20A 7. 5A
MPX- B BODY DOOR ECU-
ECU- IG ACC

6 2 2

2
GR(* 3) GR(* 3)
IM

2
GR(* 4) GR(* 4)
II

Y- G

R- L

8 3 5 12 17 A 16 A
B IG B ACC L MPX1
B6 A , B7 B
BODY ECU
DCTY PCTY SG1 KSW SG2 DBKL SG3 PBKL E
20 B 21 B 11 A 9 A 1 B 7 B 2 B 14 B 11

12 II 10 IM 20 IM
W- L

W- L
R- Y

L- Y
W
R

W- B

W- B

W- B
(*3)
Y
DOOR COURTESY

DOOR COURTESY

2
BUCKLE SW LH

1 1 2 1
WARNING SW

BUCKLE SW RH
UNLOCK
SW LH

SW LH
D3

D4

U1

B8

1 2
W- B
B9

1
W- B
(* 3)
W- B

IF

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 * 1: 1ZZ- FE FROM POWER SOURCE SYSTEM (SEE PAGE 52)
* 2: 2ZZ- GE
* 3: USA
* 4: CANADA A B

5A 7. 5A
WARNING DOME

6 2

11 IM 17 IM 3 II
GR(* 3)

GR(* 4)

L- W

L- W
(*3)

(*4)
R- Y

J6
Y- G

(* 4)

(* 3)
GR

GR
JUNCTION
CONNECTOR
R- L P E E P

2 A 4 A 5 A (*3)
3 B 1 B 22 A 2 B 8 B 5 B 1 B (*4)
PBEW ACC +B
FASTEN
BELT
COMBINATION METER

BUZZER C10 A , B
PASSENGER
C12 A , C13 B

SEAT BELT
WARNING
[CLOCK]
EARTH
1 A (* 3)
12 B (* 4)

7 A 12 A 18 B 19 A
LG- R
BR

G- O

W- B

W- B
(* 3)

(* 4)
4 IE5 13 IE5
LG- R

G- O

E2 A , E3 B , E8 E

10 B 6 A (* 1)
ENGINE CONTROL

18 E 29 E (* 2)
MPX1 MPX2
MODULE

W- B

W- B
(* 3)
W- B
(* 4)

A
J10
BR

JUNCTION
CONNECTOR

IH IH

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 KEY REMINDER AND SEAT BELT WARNING
SYSTEM OUTLINE
1. SEAT BELT WARNING SYSTEM
When the ignition SW is turned to the ON position, the signal is input to the body ECU. At this time, to determine whether or
not the driver fastens the seat belt, the signal from the buckle SW LH is input to TERMINAL DBKL of the body ECU. If the
driver does not fasten the seat belt, the seat belt warning light in the combination meter flashes and the alarm buzzer goes
on, in response to the communication control of the body ECU etc.
Additionally, the sensor (Inside of buckle SW RH) installed on the front passenger seat detects the passenger and
determines whether or not the passenger fastens the seat belt.
If the passenger does not fasten the seat belt, the front passenger seat belt warning light is flashed.
2. KEY REMINDER SYSTEM
If the driver door is opened with the ignition SW set at the ACC or OFF position and the ignition key remained inserted into
the key cylinder (The unlock warning SW is on), the signal from the unlock warning SW is input to TERMINAL KSW of the
body ECU and the signal from the door courtesy SW LH is input to TERMINAL DCTY of body ECU. As a result, through
communication control of the body ECU etc. the buzzer in the combination meter goes on to warn the driver that the ignition
key is still inserted.

SERVICE HINTS
B8 BUCKLE SW LH
1-2 : Opened with the driver’s seat belt in use
D3 DOOR COURTESY SW LH
1-GROUND : Closed with the LH door open
U1 UNLOCK WARNING SW
2-1 : Closed with the ignition key in the cylinder

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 C12 A 36 E8 E 34 (2ZZ-GE)
B7 B 36 C13 B 36 J6 37
B8 36 D3 38 J10 37
B9 36 D4 38 U1 37
A 36 E2 A 32 (1ZZ-FE)
C10
B 36 E3 B 32 (1ZZ-FE)
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IM

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH

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 SRS
NOTICE: When inspecting or repairing the SRS, perform the operation in accordance with the following precautionary
instructions and the procedure and precautions in the Repair Manual for the applicable model year.

Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information
when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery.

Work must be started after 90 seconds from when the ignition switch is turned to the ”LOCK” position and the
negative (-) terminal cable is disconnected from the battery.
(The SRS is equipped with a back-up power source so that if work is started within 90 seconds from
disconnecting the negative (-) terminal cable of the battery, the SRS may be deployed.)

When the negative (-) terminal cable is disconnected from the battery, the memory of the clock and audio system will be
canceled. So before starting work, make a record of the contents memorized in the audio memory system. When work is
finished, reset the audio systems as they were before and adjust the clock. To avoid erasing the memory in each
memory system, never use a back-up power supply from outside the vehicle.

Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during repairs.

Do not expose the steering wheel pad, front passenger airbag assembly, center airbag sensor assembly, front airbag
sensor assembly, door side airbag sensor assembly, seat belt pretensioner, side airbag assembly or side airbag sensor
assembly directly to hot air or flames.

Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger airbag
assembly, center airbag sensor assembly, front airbag sensor assembly, door side airbag sensor assembly, seat belt
pretensioner, side airbag assembly and side airbag sensor assembly should be inspected.

Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.

Never disassemble and repair the steering wheel pad, front passenger airbag assembly, center airbag sensor assembly,
front airbag sensor assembly, door side airbag sensor assembly, seat belt pretensioner, side airbag assembly or side
airbag sensor assembly in order to reuse it.

If the steering wheel pad, front passenger airbag assembly, center airbag sensor assembly, front airbag sensor
assembly, door side airbag sensor assembly, seat belt pretensioner, side airbag assembly or side airbag sensor
assembly has been dropped, or if there are cracks, dents or other defects in the case, bracket or connector, replace
them with new ones.

Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting the system’s electrical circuits.

Information labels are attached to the periphery of the SRS components. Follow the instructions on the notices.

After work on the SRS is completed, perform the SRS warning light check.

If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair
Manual.

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 SRS

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

4 9
5 AM2 IG2 6 B- O L
IK IM 7. 5A
(*3) SRS- IG
ST2

6 IH

L
I10

B- O

B- O
IGNITION SW 10 IH

(* 2)

(* 2)

SRS WARNING LIGHT

B- O
D1
DATA LINK CONNECTOR 3

[COMB. METER]
C C 14

GR
J6
JUNCTION

C12
CONNECTOR SIL TC A/B
7 13 11 15

P- B

B- Y

B- Y
W
B- R

3 IF 4 IF 18 IF 7 IM

11 IK

2 IH 9 IH 1 IH
B- O

P- B

B- Y
9 IC

GR
W
B- R

5 A 12 A 19 A 3 A 6 A
IG2 SIL TC LA IG1

16 2F
C6 A , C7 B , C8 C
CENTER AIRBAG SENSOR ASSEMBLY
GSW2 LBE+ D+ D- P+ P-
23 A 11 B 14 A 13 A 10 A 11 A
7. 5A
AM2
P

1 2A

5 IH

Y- G
B- R

Y- R
Y- B
P

14 IB
P- G
(*2)

(*3)
P

FL MAIN
3. 0W

8 B (* 3)
14 F (* 2) 18 1 2
F/PS BLTW
SPIRAL
CABLE

BATTERY 1 2

E3 B , E9 F B7
BODY ECU
ENGINE CONTROL
MODULE

A13 A12
AIRBAG SQUIB AIRBAG SQUIB
(STEERING WHEEL (FRONT PASSENGER
PAD) AIRBAG ASSEMBLY)

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 * 1 : W/ SIDE AIRBAG
* 2 : 2ZZ- GE
* 3 : 1ZZ- FE

P9 P10 S4 S5 F1 F2
PRETENSIONER PRETENSIONER SIDE AIRBAG SIDE AIRBAG FRONT AIRBAG FRONT AIRBAG
LH RH SQUIB LH SQUIB RH SENSOR LH SENSOR RH

1 2 1 2 1 2 1 2

2 1 2 1

BR- W
W- R

B- W
BR
Y- G

Y- G
Y- R

Y- R
Y- B

Y- B

(* 1)

(* 1)

(* 1)

(* 1)
Y

1 IE2 2 IE2 2 IG1 1 IG1

BR- W
W- R

B- W
BR
2 B 1 B 5 C 6 C 5 B 6 B 2 C 1 C 15 A 26 A 9 A 20 A
PL+ PL- PR+ PR- SFL+ SFL- SFR+ SFR- +SL - SL +SR - SR
C6 A , C7 B , C8 C
CENTER AIRBAG SENSOR ASSEMBLY

DML+ DML- DMR+ DMR- VUPL SSL+ FSL ESL VUPR SSR+ FSR ESR E1 E2
17 A 16 A 7 A 8 A 7 B 9 B 10 B 12 B 12 C 10 C 9 C 7 C 27 A 28 A

W- B

W- B
W- G

R- W
W- L

R- Y
(* 1)

(* 1)

(* 1)

(* 1)

4 IH 3 IH
GR- L
LG- B
L- W
P- L

L- Y
(* 1)

(* 1)

(* 1)

(* 1)

(* 1)

(* 1)

(* 1)

(* 1)
GR
LG
P

2 IA3 1 IA3 2 IH3 1 IH3

12 II
W- G

R- W
W- L

R- Y
(* 1)

(* 1)

(* 1)

(* 1)

W- B

2 1 2 1 1 2 3 4 1 2 3 4

D7 D8 S9 S10
DOOR SIDE DOOR SIDE SIDE AIRBAG SENSOR LH SIDE AIRBAG SENSOR RH IF
AIRBAG SENSOR AIRBAG SENSOR
LH RH

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 SRS
SYSTEM OUTLINE
The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts.
When the ignition SW is on does, current from the SRS-IG fuse flows to TERMINAL (A) 6.
If an accident occurs while driving, deceleration caused by a frontal impact is detected by each of the sensor and the switch,
in the center airbag sensor assembly and when the frontal impact exceeds a set level (When the safing sensor built into the
center airbag sensor assembly is on and the center airbag sensor is on, the front airbag sensor are off), current from the
SRS-IG fuse flows to TERMINALS (A) 14, (A) 10 of the center airbag sensor assembly to TERMINAL 1 of the airbag squib
to TERMINAL 2 to TERMINALS (A) 13, (A) 11 of the center airbag sensor assembly to TERMINAL (A) 27, TERMINAL (A) 28
or BODY GROUND to GROUND.
When the safing sensor built into the center airbag sensor assembly is on and the front airbag sensor LH or RH is on, the
center airbag sensor is off and current from the SRS-IG fuse flows to TERMINALS (A) 14, (A) 10 of the center airbag sensor
assembly to TERMINAL 1 of the airbag squib to TERMINAL 2 to TERMINALS (A) 13, (A) 11 of the center airbag sensor
assembly to TERMINAL (A) 9 or (A) 15 to TERMINAL 2 of the front airbag sensor to TERMINAL 1 to TERMINAL (A) 20 or
(A) 26 of the center airbag sensor assembly to TERMINAL 27, TERMINAL 28 or BODY GROUND to GROUND, when the
safing sensor built into the center airbag sensor assembly is on, and the front airbag sensor LH or RH is on and the center
airbag sensor is on, one of the above-mentioned circuits is activated so that current flows to the airbag squibs, causing it to
operate.
The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver.
Simultaneously, the airbag stored inside the passenger’s instrument panel is instantaneously expanded to soften the shock
to the passenger.

: PARTS LOCATION
Code See Page Code See Page Code See Page
A12 36 D7 38 I10 37
A13 36 D8 38 J6 37
B7 36 E3 B 32 (1ZZ-FE) P9 39
C6 A 36 E9 F 34 (2ZZ-GE) P10 39
C7 B 36 32 (1ZZ-FE) S4 37
F1
C8 C 36 34 (2ZZ-GE) S5 37
C12 36 32 (1ZZ-FE) S9 39
F2
D1 36 34 (2ZZ-GE) S10 39
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IB
25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IC
IF
IH
II 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IK
IM
2A 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2F 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA3 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IE2 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IG1 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)
IH3 46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH

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 MEMO

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 ABS

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

1 A

50A 25A 5A D1 10A

ABS NO. 1 ABS NO. 2 ABS- IG STOP
DATA LINK CONNECTOR 3

2 2

2 2G 9 2D 3 IG TS TC SIL 2 IK
12 13 7

G- W
W- R

G- B
P- B

STOP LIGHT SW
2
4 IF 3 IF 9 IK

S8
B- W

B- O
B- R

1
2 IG 5 IG 1 IG

G- W

G- W
W- R

P- B

W
13 IE3 3 IE3 15 IE3 12 IE3 2 IE3

G- W
W- R
B- O

P- B

W
23 1 25 15 16 14 10
+BM +BS IG1 TS TC D/G STP

GND1 GND2 PKB

S11 2 24 18
SKID CONTROL ECU WITH ACTUATOR
W- B

W- B

R- B

5 II2
R- B

E1

P3
PARKING BRAKE SW
W- B

EB

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52)

5A
WARNING

R- Y
A6 A7
C12 A , C13 B
ABS SPEED SENSOR ABS SPEED SENSOR 6
FRONT LH FRONT RH 22 A COMBINATION METER
2 1 2 1 11 IM

ABS

R- Y
P

L
2 IG3 9 IG3

17 B 8 B 19 A

W- B
GR
BR
Y

V
L

5 IE3 16 IE3 4 IE3 14 IE3 20 IM

GR
P

V
L

12 II
9 8 31 30 13 32
FL+ FL- FR+ FR- WA BRL

RL+ RL- RR+ RR-

11 12 33 34 S11
SKID CONTROL ECU
WITH ACTUATOR
W
G
R

2 II2 7 II2 1 II2 6 II2

W- B
W
G
R

1 2 1 2

A15 A16
ABS SPEED SENSOR ABS SPEED SENSOR
REAR LH REAR RH

IF

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 ABS
SYSTEM OUTLINE
This system controls the respective brake fluid pressures acting on the brake cylinders of the right front wheel, the left front
wheel, the right rear wheel and the left rear wheel when the brakes are applied in a panic stop so that the wheels do not lock.
This results in improved directional stability and steerability during panic braking.
1. INPUT SIGNALS
(1) Speed sensor signal
The speed of the wheels is detected and input to TERMINALS FL+, FR+, RL+ and RR+ of the ABS ECU.
(2) Stop light SW signal
A signal is input to TERMINAL STP of the ABS ECU when the brake pedal depressed.
2. SYSTEM OPERATION
During sudden braking the ABS ECU which has signals input from each of the sensor, controls current to the solenoid inside
the actuator and causes the hydraulic pressure acting on each of the wheel cylinder escape to the reservoir. The pump
inside the actuator is also operating at this time and it returns the brake fluid from the reservoir to the master cylinder,
preventing locking of the vehicle wheels.
If the ECU judges that the hydraulic pressure acting on the wheel cylinder is insufficient, the current acting on the solenoid is
controlled and the hydraulic pressure is increased. Holding of the hydraulic pressure is also controlled by the ECU, by the
same method as above. By repeated pressure reduction, holding and increase are repeated to maintain vehicle stability and
to improve steerability during sudden braking.

SERVICE HINTS
S11 SKID CONTROL ECU WITH ACTUATOR
1, 23-GROUND : Always approx. 12 volts
2, 24-GROUND : Always continuity
25-GROUND : Approx. 12 volts with the ignition SW at ON position
10-GROUND : Approx. 12 volts with the brake pedal depressed

: PARTS LOCATION
Code See Page Code See Page Code See Page
32 (1ZZ-FE) A16 38 S8 37
A6
34 (2ZZ-GE) C12 A 36 32 (1ZZ-FE)
S11
32 (1ZZ-FE) C13 B 36 34 (2ZZ-GE)
A7
34 (2ZZ-GE) D1 36
A15 38 P3 37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IF
IG
II 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IK
IM
2D
23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2G

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE3 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IG3 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EB Front Left Fender
42 (2ZZ-GE)
IF 44 Instrument Panel Brace RH

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 : SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 40 (1ZZ-FE) Engine Room Main Wire E1 42 (2ZZ-GE) Engine Room Main Wire

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 CRUISE CONTROL (1ZZ-FE)

FROM POWER SOURCE SYSTEM (SEE PAGE 52) B- W

C A A
R- L

5A (A/T)
5A 5A
BK/UP WARNING ECU- IG
LP B- O B- O

6 6 5
B- O

B- W
(M/T)
7 IB 11 IM 10 II 10 IK
1 IC1

(M/T)
B- O

B- O
R- Y
R- L

(M/T)
B- O
6 2F 20 2C
1

(A/T)
R- L
C17
CRUISE
CONTROL

A/T SHIFT LEVER

[PARK/NEUTRAL
CLUTCH

POSITION SW]
2 2C 19 2C 9 2F 3

POSITION SW
SW
2 D

(A/T)
B- Y
(M/T)
B- Y
7

P1
R- L

7 IE3
R- L 2 IC1
(A/T)

(A/T)
B- Y
(M/T)
B- Y

CONNECTOR
B L- W
J8

JUNCTION
JUNCTION B (A/T)
CONNECTOR
5 10
W- R D D

J8
IM IF B
W- R

W- R
R- Y

B- Y
22 9 12 3
SPD D
COMBINATION METER

CRUISE

PI CCS
4 C18 10
CRUISE CONTROL ECU

W
C12

2
8 20 16
CCS
Y- B

Y- B
LG- B

LG

CRUISE

10 IE5 1 IE5
CRUISE CONTROL SW

RES/ACC
LG- B

LG

[COMB. SW]

SET/COAST
C16

6 EA2 4 EA2

CANSEL
G- Y
R- L

LG

ECC
3
1 2 3
W- B

IG+ SE SI

W- B
V1
VEHICLE SPEED SENSOR
(COMBINATION METER)

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 B- W FROM POWER SOURCE SYSTEM (SEE PAGE 52)

E2 A , E3 B , E5 D
10A
ENGINE CONTROL STOP
B- O MODULE

2 IK
D IDLO OD1 S2
24 B 10 A 1 B 20 D
B- W

B- O

Y
18 2C 3 2F
B

G- B
J2

L- W

B
JUNCTION
CONNECTOR
B- O

B
17 2C

Y
(A/T)
L- W

3 EA1

P- B
L- W
(A/T) 18 IE3 19 IE3 8 IE3
L- W

P- B
9 II

C18
9 CRUISE CONTROL ECU 13 14 6 5
B IDL OD ECT TC

4 IF

MC MO L STP- GND
7 15 8 2 16
R- W

G- B
P- L

G- B

P- B
G- W

3 2
W- B

S8 13
STOP LIGHT
SW TC

4 1
14 IF
G- W
R- Y

9 D1
DATA LINK
IK CONNECTOR 3
11 IG3 3 IG3 4 IG3
R- W

R- Y
P- L

2 1 3
MC MO L

C5
CRUISE CONTROL
W- B

ACTUATOR

M
A
10
GND 4 W- B W- B A A W- B
IG3

J9
W- B W- B A JUNCTION A
CONNECTOR J10
JUNCTION
CONNECTOR

IH

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 CRUISE CONTROL (1ZZ-FE)
SYSTEM OUTLINE
The cruise control system allows to travel at a constant speed, by the operation of the switch, without having to depress the
accelerator pedal. In this system, the engine throttle valve opening angle is adjusted automatically to control the vehicle at a
constant speed.
1. SET OPERATION
When the cruise control main SW is turned ON, the cruise control system enters into standby mode, and the indicator light in
the combination meter is turned ON.
2. SET SPEED CONTROL
When the SET/COAST switch is operated while traveling with the main SW ON, the speed when the switch is operated to
OFF (Switch released) is memorized, and the vehicle speed is controlled at that speed.
3. COAST CONTROL
When the SET/COAST switch is operated to ON, the motor in the actuator rotates the throttle valve until it is closed fully to
decrease the vehicle speed, and the speed when the switch is operated to OFF is memorized, and the vehicle speed is
controlled at that speed.
Furthermore, every time the SET/COAST switch is operated momentarily (Approximately 0.5 sec.) to ON, the memorized
vehicle speed is decreased by approximately 1.5km/h.
4. ACCEL CONTROL
When the RESUME/ACCEL switch is operated to ON, the motor in the actuator rotates the throttle valve to open direction to
increase the vehicle speed, and the speed when the switch is operated to OFF is memorized, and the vehicle speed is
controlled at that speed.
Furthermore, every time the RESUME/ACCEL switch is operated momentarily (Approximately 0.5 sec.) to ON, the
memorized vehicle speed is increased by approximately 1.5km/h.
5. MANUAL CANCEL MECHANISM
If any of the following signals are input during cruise control traveling, the cruise control is canceled.
(1) Stop light SW is ON (Brake pedal is depressed)
(2) Park/Neutral Position SW D circuit is turned from ON to OFF (A/T)
(3) Cruise control clutch SW is ON (Clutch pedal is depressed) (M/T)
(4) The CANCEL SW of the control SW is ON
(5) The Main SW is turned OFF
6. RESUME CONTROL
After canceling the cruise control (Except when the main SW is OFF) if the vehicle speed is above the minimum speed limit
(Approximately 40km/h, 25mph), operating the RESUME/ACCEL switch from OFF to ON will cause the system to accelerate
and resume to the vehicle speed before manual cancellation.
7. ELECTRONICALLY CONTROLLED TRANSMISSION CONTROL
During cruise control traveling, communication control is made to fix the electronically controlled transmission in normal
pattern. However, in this case the indicator of the electronically controlled transmission does not change.
8. OVERDRIVE FUNCTION
While traveling with the cruise control, if the overdrive cut speed is reached on an upgrade hill, (Memorized speed minus
4km/h) the overdrive is released (O/D OFF) immediately.
This function increases the vehicle’s traction so that the vehicle speed does not drop.
9. AUTO CANCEL OPERATION
If any of the following conditions are detected, the set speed is erased and the control is canceled.
(1) Disconnection or short in the Stop Light SW
(2) Abnormality in vehicle speed signal
(3) Abnormality in the actuator
(4) The actual vehicle speed becomes slower than the minimum speed limit

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 SERVICE HINTS
C16 CRUISE CONTROL SW [COMB. SW]
2-3 : Continuity with the MAIN SW on
2-3 : Approx. 1540 Ω with the CANCEL SW on
Approx. 630 Ω with the SET/COAST SW on
Approx. 240 Ω with the RESUME/ACCEL SW on
C18 CRUISE CONTROL ECU
9-GROUND : Approx. 12 volts with the ignition SW at ON position
12-GROUND : 4 pulses with 1 rotation of the rotor shaft
10-GROUND : Approx. 1540 Ω with the CANCEL SW on in the control SW
Approx. 630 Ω with the SET/COAST SW on in the control SW
Approx. 240 Ω with the RESUME/ACCEL SW on in the control SW
16-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
C5 32 (1ZZ-FE) E2 A 32 (1ZZ-FE) J10 37
C12 36 E3 B 32 (1ZZ-FE) P1 33 (1ZZ-FE)
C16 36 E5 D 32 (1ZZ-FE) S8 37
C17 36 J2 33 (1ZZ-FE) V1 33 (1ZZ-FE)
C18 36 J8 37
D1 36 J9 37
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IF
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
IM
2C 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2F 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
40 (1ZZ-FE)
(1ZZ FE) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
EA2
IC1 44 Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH)
IE3
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5
IG3 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

IH 44 Cowl Side Panel RH

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 CRUISE CONTROL (2ZZ-GE)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

W- L

B- R

10A 20A
STOP EFI

8 2F 4 2F

B- O
2 IK
10A

G- B
EFI
C NO. 1
5 AM2 IG2 6 B- O C J6
JUNCTION

STOP LIGHT SW
CONNECTOR 3 2
ST2
C

B- O 1 5

S8
I10
B- R

IGNITION SW 4 1 EFI
RELAY

G- W
R- Y
2 3

9 IE3
11 IK 4 IK 9 IK 4 2G 7 2H 12 2F

6 IB
,
G- W

W- B
R- Y

9 IC 6 IC

GR
B- R

E 8 E , E 9 F , E10 G , E12 I
B- O

12 E 19 E 8 F ENGINE CONTROL MODULE

16 2F ST1- STP MREL

IGSW CCS
7. 5A 14 2F
AM2 9 F 24 E

W- G
B- O

BR

1 2A
15 2F 22 IE3 10 IE3
B- O

W- G
B- R

6 EA3
BR
BR

3 2
ECC CCS

CRUISE
FL MAIN A
J1
3. 0W
JUNCTION
CONNECTOR
RES/ACC
A

SET/COAST
BR

BATTERY

CANSEL
W- B

W- B

EM EB EC

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52)
W- L
1 A C
B- R

10A 5A 5A
ETCS WARNING BK/UP LP

2 6 6
LG
1 11 IM 7 IB
LG- B R- L

R- Y
(A/T)

R- L
22 A 20 A 8 A

CRUISE
10 IE5 1 IE5
W- R

6 2F 19 2C

LG- B

LG
16 A 9 A
C12 A , C13 B
6 EA2 4 EA2 2 2C
COMBINATION
W- R

METER
Y- G

G- Y

R- L
LG
5 IM

11 IE3
2 3 1
SE SI IG+
4 IB
W- R
W- L

Y- G
B- R

V1
E 8 E , E 9 F , E10 G , VEHICLE SPEED SENSOR
(COMBINATION METER)
E12 I
1 F 3 F 6 E 13 E 17 E ENGINE CONTROL MODULE
+B BATT +BM PI SPD

E2 VC VTA VTA2 M- M+ GE01 EC

28 G 18 G 21 G 31 G 2 I 3 I 17 I 30 I
(SHIELDED)
B- W
R- B

B- L

(*1)
BR

W- B

3 5 6 4 1 2
E2 VC VTA VTA2 M- M+ 7 EA3

T1
THROTTLE POSITION SENSOR
W- B

EB

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 CRUISE CONTROL (2ZZ-GE)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

5A
ECU- IG

10 II
R- L
(A/T)

(A/T)
R- L
(M/T)
B- O

9 2F

(M/T)
B- Y
3
P1
D A/T INDICATOR SW
[PARK/NEUTRAL POSITION SW]
1 IC1 7 IE3 20 2C 7
(M/T)

(M/T)
B- W
B- O

(A/T)
L- W
(M/T)
B- Y
CRUISE CONTROL

1 18 2C 17 2C
CLUTCH SW
C17

2 IC1
2 3 2F 3 2F
(M/T)

B- Y
(A/T)
L- W

L- W

(M/T) E 8 E , E 9 F , E10 G ,

E12 I
10 E ENGINE CONTROL MODULE
D

EPA2 VPA2 VCP2 EPA VPA VCPA E02 E01 E03 ME01
29 F 23 F 27 F 28 F 22 F 26 F 6 G 7 G 7 I 4 I
W- G

W- R
W- B

W- B
LG- R

L- W
L- O

L- R

L- Y
L

1 2 4 3 5 6

A17
ACCELERATOR PEDAL POSITION SENSOR
W- G

W- R
W- B

W- B

W- B

ED EC

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 SYSTEM OUTLINE
The cruise control system allows to travel at a constant speed, by the operation of the switch, without having to depress the
accelerator pedal. In this system, the engine throttle valve opening angle is adjusted automatically to control the vehicle at a
constant speed.
1. SET OPERATION
When the cruise control main SW is turned ON, the cruise control system enters into standby mode, and the indicator light in
the combination meter is turned ON.
2. SET SPEED CONTROL
When the SET/COAST switch is operated while traveling with the main SW ON, the speed when the switch is operated to
OFF (Switch released) is memorized, and the vehicle speed is controlled at that speed.
3. COAST CONTROL
When the SET/COAST switch is operated to ON, the motor in the actuator rotates the throttle valve until it is closed fully to
decrease the vehicle speed, and the speed when the switch is operated to OFF is memorized, and the vehicle speed is
controlled at that speed.
Furthermore, every time the SET/COAST switch is operated momentarily (Approximately 0.5 sec.) to ON, the memorized
vehicle speed is decreased by approximately 1.5km/h.
4. ACCEL CONTROL
When the RES/ACC switch is operated to ON, the motor in the actuator rotates the throttle valve to open direction to
increase the vehicle speed, and the speed when the switch is operated to OFF is memorized, and the vehicle speed is
controlled at that speed.
Furthermore, every time the RES/ACC switch is operated momentarily (Approximately 0.5 sec.) to ON, the memorized
vehicle speed is increased by approximately 1.5km/h.
5. MANUAL CANCEL MECHANISM
If any of the following signals are input during cruise control traveling, the cruise control is canceled.
(1) Stop light SW is ON (Brake pedal is depressed)
(2) Park/Neutral Position SW D circuit is turned from ON to OFF (A/T)
(3) Cruise control clutch SW is ON (Clutch pedal is depressed) (M/T)
(4) The CANCEL SW of the control SW is ON
(5) The Main SW is turned OFF
6. RESUME CONTROL
After canceling the cruise control (Except when the main SW is OFF) if the vehicle speed is above the minimum speed limit
(Approximately 40km/h, 25mph), operating the RESUME/ACCEL switch from OFF to ON will cause the system to accelerate
and resume to the vehicle speed before manual cancellation.
7. ELECTRONICALLY CONTROLLED TRANSMISSION CONTROL
During cruise control traveling, communication control is made to fix the electronically controlled transmission in normal
pattern. However, in this case the indicator of the electronically controlled transmission does not change.
8. OVERDRIVE FUNCTION
While traveling with the cruise control, if the overdrive cut speed is reached on an upgrade hill, (Memorized speed minus
4km/h) the overdrive is released (O/D OFF) immediately.
This function increases the vehicle’s traction so that the vehicle speed does not drop.
9. AUTO CANCEL OPERATION
If any of the following conditions are detected, the set speed is erased and the control is canceled.
(1) Disconnection or short in the Stop Light SW
(2) Abnormality in vehicle speed signal
(3) Abnormality in the actuator
(4) The actual vehicle speed becomes slower than the minimum speed limit

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 CRUISE CONTROL (2ZZ-GE)
SERVICE HINTS
C16 CRUISE CONTROL SW [COMB. SW]
2-3 : Continuity with the MAIN SW on
2-3 : Approx. 1540 Ω with the CANCEL SW on
Approx. 630 Ω with the SET/COAST SW on
Approx. 240 Ω with the RES/ACC SW on
E8 (E), E9 (F), E10 (G), E12 (I) ENGINE CONTROL MODULE
(F) 9-GROUND : Approx. 12 volts with the ignition SW at ON position
(E) 6, (F) 3-GROUND : Always approx. 12 volts
(G) 6, (G) 7, (I) 4, (I) 7, (I) 30-GROUND: Always continuity
(E) 19-GROUND : Approx. 12 volts with the stop light SW at on
(E) 24-GROUND : Continuity with the MAIN SW on
Approx. 1540 Ω with the CANCEL SW on
Approx. 630 Ω with the SET/COAST SW on
Approx. 240 Ω with the RES/ACC SW on

: PARTS LOCATION
Code See Page Code See Page Code See Page
A17 36 E9 F 34 (2ZZ-GE) P1 35 (2ZZ-GE)
C12 A 36 E10 G 34 (2ZZ-GE) S8 37
C13 B 36 E12 I 34 (2ZZ-GE) T1 35 (2ZZ-GE)
C16 36 I10 37 V1 35 (2ZZ-GE)
C17 36 J1 35 (2ZZ-GE)
E8 E 34 (2ZZ-GE) J6 37

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 26 Engine Room R/B No.1 (Engine Compartment Left)
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IB
25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IC
II
IK 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IM
2A
23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2C
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA2
42 (2ZZ-GE)
(2ZZ GE) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
EA3
IC1 44 Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH)
IE3
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5

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 : GROUND POINTS

Code See Page Ground Points Location

EB 42 (2ZZ-GE) Front Left Fender
EC
42 (2ZZ-GE)
(2ZZ GE) Cylinder Head Cover LH
ED
EM 42 (2ZZ-GE) Front Left Fender
IH 44 Cowl Side Panel RH

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 ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

20A 10A
EFI STOP

CONNECTOR 3
2 IK

DATA LINK
G- B
1 5

W- L
(ELECTRONICALLY CONTROLLED
TC

D1
EFI 2
13
RELAY

VEHICLE SPEED SENSOR

S8
STOP LIGHT 2
2 3 SW

P- B
TRANSMISSION)
1
10A

G- W
EFI
NO. 1
1

V2
9 IK 4 IF

4 2G 7 2H 12 2F 4 2C 4 2F 8 2F 6 IB 8 IB
G- W
W- B

W- B

W- L
B- R

B- R

P- B
L- B

B
1 A 6 B 16 D 15 D 5 B
BATT STP NT+ NT- TC

E2 A , E3 B , E4 C , E5 D
ENGINE CONTROL MODULE

+B MREL EVG THA VG VC VTA THW E2

16 A 21 B 1 C 22 C 11 C 2 C 23 C 14 C 18 C
G- W

B- W
Y- G
B- R

L- R
L- B

BR
G
R

THROTTLE POSITION

2 4 3
MASS AIR FLOW

ENGINE COOLANT

E2G THA VG 1 3 2
TEMP. SENSOR

VC VTA
SENSOR
METER
M1

+B E2 E2
T1

E6

1 5 2 1
B- R

BR

BR

BR

BR
W- B

W- B

BR BR
E2

EM EB

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 (1ZZ-FE)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

C18 5A
CRUISE CONTROL ECU

R- L

R- L
BK/UP
LP
P1
A/T INDICATOR SW
3 [PARK/NEUTRAL POSITION SW]
6
RB
IDL OD D 7 IB 19 2C
13 14 3

R- L
B- Y

6 2F PL RL NL DL 2L LL
L- W

1 2 5 7 4 8
B

CONNECTOR
JUNCTION

L- W
R- B
B- W
J8

L- W
B- Y

20 2C 18 2C 17 2C 6 2C

18 IE3 19 IE3 7 IE3 9 2F 3 2F 22 2F

B- Y
L- W

B- O

R- B

Y- B
P- L

L- Y
B

P
10 A 1 B 24 B 20 C 2 B 8 C 19 C 9 C
IDLO OD1 D P R N 2 L

E2 A , E3 B , E4 C , E5 D
ENGINE CONTROL MODULE

THO SLT+ SLT- S1 ST SL S2

13 C 6 D 5 D 8 D 29 D 19 D 20 D

CONNECTOR
BR- W
BR- Y
GR- L

G- W

B
Y- G
Y- R

JUNCTION
J2
YB

1 3 8 5 2 4 10
OT SLT+ SLT- S1 ST SL S2
THO
GR

LG
W
O

B
O

E2
6 E1
ELECTRONICALLY CONTROLLED
BR TRANSMISSION SOLENOID

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 ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR

LG- R

G- O

W- R

5 IM

4 IE5 13 IE5 4 IB 3 II2

LG- R

BR- Y

BR- Y
W- R
G- O

10 B 6 A 22 B 5 A 5
MPX1 MPX2 SPD ODMS

O/D MAIN SW

O/D MAIN SW
E2 A , E3 B , E4 C , E5 D
ENGINE CONTROL MODULE

O3
EC E1 E02 E01 E03 ODLP
6
12 B 17 C 31 D 21 D 7 A 19 B
BR- Y
W- B

W- B

W- B

W- B

W- B
BR

1 EA1

4 IN
CONNECTOR

CONNECTOR
JUNCTION

JUNCTION

A A 12 II
J1

J2

A A
W- B

BR- Y
W- B

W- B

W- B

W- B
BR

W- B

EB ED EC IF

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 (1ZZ-FE)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

5A
WARNING

6
LG- R
11 IM
G- O

W- R

R- Y
LG- R
W- R

G- O

C12 A , C13 B
COMBINATION METER 9 A 18 B 12 A 22 A
LCD DISPLAY

7 A 13 B
BR- Y
BR

12 IM

12 IB

BR- Y BR- Y
BR

IH

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 ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR
SYSTEM OUTLINE
GEAR SHIFT OPERATION
When driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from the
engine coolant temp. sensor and the vehicle speed signal from vehicle speed sensor is input to TERMINAL NT+ of the
engine control module. At the same time, the throttle valve opening signal from the throttle position sensor is input to
TERMINAL VTA of the engine control module as throttle angle signal.
Based on these signals, the engine control module selects the best shift position for the driving conditions and sends current
to the electronically controlled transmission solenoid.

SERVICE HINTS
V2 VEHICLE SPEED SENSOR (ELECTRONICALLY CONTROLLED TRANSMISSION)
1-2 : 560- 680 Ω
E2 (A), E3 (B), E4 (C) ENGINE CONTROL MODULE
BATT-E1 : Always approx. 12 volts
+B-E1 : Approx. 12 volts with ignition SW ON or ST position
MREL-E1 : Approx. 12 volts with ignition SW ON or ST position
P1 A/T INDICATOR LIGHT SW [PARK / NEUTRAL POSITION SW]
3-1 : Closed with shift lever in P position
3-2 : Closed with shift lever in R position
3-5 : Closed with shift lever in N position
3-7 : Closed with shift lever in D position
3-4 : Closed with shift lever in 2 position
3-8 : Closed with shift lever in L position

: PARTS LOCATION
Code See Page Code See Page Code See Page
C12 A 36 E4 C 32 (1ZZ-FE) O3 37
C13 B 36 E5 D 32 (1ZZ-FE) P1 33 (1ZZ-FE)
C18 36 E6 32 (1ZZ-FE) S8 37
D1 36 J1 33 (1ZZ-FE) T1 33 (1ZZ-FE)
E1 32 (1ZZ-FE) J2 33 (1ZZ-FE) V2 33 (1ZZ-FE)
E2 A 32 (1ZZ-FE) J8 37
E3 B 32 (1ZZ-FE) M1 33 (1ZZ-FE)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IF
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
IM
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2C 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1 40 (1ZZ-FE) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
IE3
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

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 (1ZZ-FE)
: GROUND POINTS

Code See Page Ground Points Location

EB 40 (1ZZ-FE) Front Left Fender
EC
40 (1ZZ-FE)
(1ZZ FE) Cylinder Head Cover LH
ED
EM 40 (1ZZ-FE) Front Left Fender
IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E2 40 (1ZZ-FE) Engine Wire

173
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 ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

20A 10A
EFI STOP

CONNECTOR 3
2 IK

DATA LINK
G- B
1 5

W- L

P- B
(ELECTRONICALLY CONTROLLED
TC

D1
EFI 2
13
RELAY

VEHICLE SPEED SENSOR

S8

O/D DIRECT CLUTCH

STOP LIGHT 2 2
2 3 SW

SPEED SENSOR

P- B
TRANSMISSION)
1
10A

G- W
EFI

O1
NO. 1
1 1

V2
9 IK 4 IF

4 2G 7 2H 12 2F 4 2C 4 2F 8 2F 6 IB 8 IB
G- W
W- B

W- B

G- O
W- L

W- L
B- R

B- R

B- R

P- B

P- B
GR

3 F 19 E 27 H 35 H 26 H 34 H 20 F
BATT STP NT+ NT- NC+ NC- TC

E 8 E , E 9 F , E10 G , E11 H , E12 I

ENGINE CONTROL MODULE

+B MREL EVG THA VG GE01 M+ M- VTA2 VTA VC

1 F 8 F 32 H 20 G 24 H 17 I 3 I 2 I 31 G 21 G 18 G
G- W
Y- G
B- R

Y- R
GR

(SHIELDED)

B- W

R- B
B- L
W
B

2 4 3
MASS AIR FLOW

E2G THA VG 2 1 4 6 5
M+ M- VTA2 VTA VC
METER
M1

+B E2 E2
1 5 3 T1
THROTTLE POSITION
MOTOR
B- R

BR

BR
W- B

W- B

BR

BR

EM EB

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 (2ZZ-GE)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

5A

R- L
BK/UP
LP
P1
A/T INDICATOR SW
3 [PARK/NEUTRAL POSITION SW]
6
RB
7 IB

R- L
PL RL NL DL 2L LL
1 2 5 7 4 8
6 2F

L- W
R- B

Y- B
L- O
P- L
P
19 2C
R- L

4 EA3 6 2C 5 EA3 17 2C 12 EA3 13 EA3

22 2F 3 2F

L- W
R- B

Y- B
L- O
P- L
P
6 F 11 E 7 F 10 E 9 E 8 E
P R N D 2 L

E 8 E , E 9 F , E10 G , E11 H , E12 I

ENGINE CONTROL MODULE

THW E2 THO SLT+ SLT- SL1+ SL1- SL2+ SL2- DSL S4

19 G 28 G 30 G 17 G 16 G 19 H 18 H 17 H 16 H 11 H 13 H
BR
G

BR- Y
GR- L

G- R
Y- G
Y- L

P- L
O
V

Y
ENGINE COOLANT

2 1 2 7 5 10 4 9 3 8
TEMP. SENSOR

THO SLT+ SLT- SL1+ SL1- SL2+ SL2- DSL S4

BR
W
O

R
B

Y
E6

1
BR

BR

E2
BR E1
6
ELECTRONICALLY CONTROLLED
BR BR TRANSMISSION SOLENOID
E2

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 ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR

LG- R

G- O

W- R

P- B

W- R

3 II2 3 IF2

BR- Y

B6 A , B7 B
P- B
5 IM 4 B
SG4

BODY ECU
5 3

4 IE5 13 IE5 4 IB MPX1 L

O/D MAIN SW
16 A 17 A

MAIN SW
E- SHIFT

O/D MAIN SW

Y- G
R- L
O3
6 4
3 B 1 B
W- R
BR- R
LG- R

W- R
G- O

W- B

18 E 29 E 17 E 16 F
MPX1 MPX2 SPD ODMS

E 8 E , E 9 F , E10 G , E11 H , E12 I

ENGINE CONTROL MODULE

EC SFTU SFTD E1 E02 E01 E03 ME01 ODLP

30 I 22 E 21 E 1 I 6 G 7 G 7 I 4 I 7 E
BR- Y
W- G

W- R
W- B

W- B

W- B
BR
P
L

6 IE3 17 IE3
LCD DISPLAY
L- R

P- L

5 6
7 EA3 SFTU SFTD
RIGHT- DOWN
LEFT- DOWN
RIGHT- UP
LEFT- UP

7 A 13 B
BR- Y
BR

ECC 4 IN
3 C16 12 IM
TRANSMISSION
BR

SHIFT SW
CONNECTOR

[COMB. SW]
JUNCTION

A 12 II 20 IM
22 IE3 A 12 IB
J1

W- B
BR

BR

A
W- R

BR- Y
W- B
W- G
W- B

W- B

W- B

6 EA3
BR

BR

W- B

EB ED EC IF IH

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 (2ZZ-GE)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

A
LG- R

G- O 5A
WARNING
W- R
6
P- B
11 IM

R- Y
LG- R
W- R

G- O
P- B

C12 A , C13 B
1 A 9 A 18 B 12 A 22 A COMBINATION METER

A/T OIL TEMP.

SPORTS A/T1

SPORTS A/T2

SPORTS A/T3

SPORTS A/T4

19 A
W- B

W- B

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 ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR
SYSTEM OUTLINE
1. GEAR SHIFT OPERATION
When driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from the
engine coolant temp. sensor and the vehicle speed signal from vehicle speed sensor is input to TERMINAL NT+ of the
engine control module. At the same time, the throttle valve opening signal from the throttle position sensor is input to
TERMINAL VTA of the engine control module as throttle angle signal.
Based on these signals, the engine control module selects the best shift position for the driving conditions and sends current
to the electronically controlled transmission solenoid.
2. E-SHIFT SYSTEM
When the shift lever is set to the M position, the shift range can be switched with the UP or DOWN switch on the steering.
(This limits to the maximum gear step and enables automatic shift-up and shift-down within the allowable range.)

SERVICE HINTS
V2 VEHICLE SPEED SENSOR (ELECTRONICALLY CONTROLLED TRANSMISSION)
1-2 : 560- 680 Ω
O1 O/D DIRECT CLUTCH SPEED SENSOR
1-2 : 560- 680 Ω
E9 (F), E12 (I) ENGINE CONTROL MODULE
BATT-E1 : Always approx. 12 volts
+B-E1 : Approx. 12 volts with ignition SW ON or ST position
MREL-E1 : Approx. 12 volts with ignition SW ON or ST position
P1 A/T INDICATOR LIGHT SW [PARK / NEUTRAL POSITION SW]
3-1 : Closed with shift lever in P position
3-2 : Closed with shift lever in R position
3-5 : Closed with shift lever in N position
3-7 : Closed with shift lever in D position
3-4 : Closed with shift lever in 2 position
3-8 : Closed with shift lever in L position

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 36 E6 34 (2ZZ-GE) M1 35 (2ZZ-GE)
B7 B 36 E8 E 34 (2ZZ-GE) O1 35 (2ZZ-GE)
C12 A 36 E9 F 34 (2ZZ-GE) O3 37
C13 B 36 E10 G 34 (2ZZ-GE) P1 35 (2ZZ-GE)
C16 36 E11 H 34 (2ZZ-GE) S8 37
D1 36 E12 I 34 (2ZZ-GE) T1 35 (2ZZ-GE)
E1 34 (2ZZ-GE) J1 35 (2ZZ-GE) V2 35 (2ZZ-GE)
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IF
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
IM
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2C 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

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 (2ZZ-GE)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA3 42 (2ZZ-GE) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
IE3
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5
IF2 46 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH)
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

EB 42 (2ZZ-GE) Front Left Fender
EC
42 (2ZZ-GE)
(2ZZ GE) Cylinder Head Cover LH
ED
EM 42 (2ZZ-GE) Front Left Fender
IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E2 42 (2ZZ-GE) Engine Wire

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 SHIFT LOCK

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

10A 5A
STOP TENS
RDC

2 IK 7 IN

G- B

R- L
2

S8
STOP LIGHT
SW

1
G- W

9 IK

20 IN
G- W

R- L

3 5
STP IG

E SLS+ SLS-
1 S3
SHIFT LOCK
CONTROL ECU
W- B

SHIFT LOCK
SOLENOID

5 IN

12 II
W- B

IF

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 SERVICE HINTS
S3 SHIFT LOCK CONTROL ECU
5-GROUND : Approx. 12 volts with the ignition SW at ON position
1-GROUND : Always continuity
3-GROUND : Approx. 12 volts with the brake pedal depressed

: PARTS LOCATION
Code See Page Code See Page Code See Page
S3 37 S8 37
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH

181
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 HORN

FROM POWER SOURCE SYSTEM (SEE PAGE 52) * 1 : W/ DOOR LOCK CONTROL
* 2 : W/O DOOR LOCK CONTROL

10A
HORN

5 1

HORN
RELAY

3 2

21 2F 2 2D

G- Y

L- B

3 IE5 J8
JUNCTION
CONNECTOR
L- B A A
(* 1)
A

L- B
(* 1)

14
HORN
L- B
(*2)

B6
BODY ECU
G- Y

G- Y

G- Y

L- B
(* 1)
1

1 1 C16
H5 H6 HORN SW
HORN (HIGH) HORN (LOW) [COMB. SW]

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 SERVICE HINTS
HORN RELAY
5-3 : Closed with the horn SW on

: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 36 H5 34 (2ZZ-GE) J8 37
C16 36 32 (1ZZ-FE)
H6
H5 32 (1ZZ-FE) 34 (2ZZ-GE)
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
2D
23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)

183
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 CIGARETTE LIGHTER AND CLOCK (USA)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

D B

15A 7. 5A 7. 5A
CIG ECU- ACC DOME

2 2

1 IF 2 IM 17 IM

L- W
GR

GR
2 4 5
C9
CIGARETTE ACC +B
LIGHTER
4 C10
CLOCK

EARTH PBEW
1 2
W- B

W- B

E
J6
JUNCTION
CONNECTOR
E
P

11 IF 10 IM

C13
COMBINATION
METER
12 II
W- B

IF

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 SERVICE HINTS
C9 CIGARETTE LIGHTER
2-GROUND : Approx. 12 volts with the ignition SW at ACC or ON position
4-GROUND : Always continuity
C10 CLOCK
5-GROUND : Always 12 volts (Power for clock)
4-GROUND : Approx. 12 volts with the ignition SW at ACC or ON position (Power for indication)
1-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
C9 36 C13 36
C10 36 J6 37
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IF
II 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IM

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH

185
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 CLOCK (CANADA)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

C D B B A C

5A 7. 5A 7. 5A 7. 5A 5A 5A
TENS ECU- ACC DOME ECU- B WARNING BK/UP LP
RDC

1 2 2 1 6 6

7 IK 2 II 3 II 3 IM 11 IM 7 IB

W- R(*2)

R- L
W- R(*1)
R- L

CONNECTOR

10 IF 6 2F
JUNCTION

W- R(* 2)
L- W

R- Y
L- R
GR
J8

D
C
W- R(* 1) D J8 5 IM 2 2C
JUNCTION
CONNECTOR

W- R
R- L

R- L
C12 A , C13 B
2 5 1 7 11 A 22 A COMBINATION METER 9 A
IG+ ACC B SPD

SPEEDOMETER

SG TH+ E PSW
4 3 12 8 C10
CLOCK
W- B
Y- G

Y- B

2 B 7 A 8 A 20 A
14 IE5 5 IE5 LG- B

E
BR

LG
P

J6
JUNCTION
CONNECTOR
Y- G

Y- B

10 IE5 1 IE5
P
LG- B

2
LG
AMBIENT

SENSOR
TEMP.
A20

* 1 : 1ZZ- FE W/ CRUISE CONTROL

1 * 2 : EXCEPT * 1 6 EA2 4 EA2
G- Y

R- L
LG

2 3 1
SE SI IG+
W- B

V1
VEHICLE SPEED SENSOR
A (COMBINATION METER)
J10
BR

JUNCTION
CONNECTOR

IH IH

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 SERVICE HINTS
C10 CLOCK
1-GROUND : Always approx. 12 volts
12-GROUND : Always continuity
5-GROUND : Approx. 12 volts with the ignition SW at ACC or ON position

: PARTS LOCATION
Code See Page Code See Page Code See Page
32 (1ZZ-FE) C13 B 36 33 (1ZZ-FE)
A20 V1
34 (2ZZ-GE) J6 37 35 (2ZZ-GE)
C10 36 J8 37
C12 A 36 J10 37
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IF
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
IM
2C 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2F 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
40 (1ZZ-FE)
EA2 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
42 (2ZZ-GE)
IE5 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

IH 44 Cowl Side Panel RH

187
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 REMOTE CONTROL MIRROR

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

7. 5A
ECU- ACC

9 IL

O
4 IA1

O
R15
REMOTE CONTROL MIRROR SW 8
B

OPERATION SW
LEFT

/DOWN
DOWN
LEFT

RIGHT

UP

RIGHT
/UP

SELECT SW
LH RH LH RH
HL HR VL VR M+ E
5 2 4 3 6 7
BR- W

BR- Y

LG- B

R- W

W- B
P- L

C B
C J11
JUNCTION
CONNECTOR
C B
LG- B

W- B
R- W
P- L

12 IA1 11 IA1 10 IA1 14 IA1

LG- B

R- W

W- B
P- L

7 IH1 8 IH1 9 IH1

BR- W

BR- Y

LG- B
R- W

R- W
P- L

W- B

1 5 3 1 5 3
MV MH M+ MV MH M+

M M M M

A
J3
JUNCTION
R13 R14 CONNECTOR
REMOTE CONTROL MIRROR LH REMOTE CONTROL MIRROR RH
IE

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 SERVICE HINTS
R15 REMOTE CONTROL MIRROR SW
8-GROUND : Approx. 12 volts with the ignition SW at ACC or ON position
6-7 : Continuity with the operation SW at UP or LEFT position
5-7 : Continuity with the operation SW at RIGHT position and the select SW at LH position
4-7 : Continuity with the operation SW at DOWN position and the select SW at LH position
2-7 : Continuity with the operation SW at RIGHT position and the select SW at RH position
3-7 : Continuity with the operation SW at DOWN position and the select SW at RH position

: PARTS LOCATION
Code See Page Code See Page Code See Page
J3 37 R13 39 R15 39
J11 38 R14 39
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IL 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IH1 46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH

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 FRONT WIPER AND WASHER

AND WASHER SW
TO REAR WIPER

[COMB. SW]
WF 11
WF

L- R
EW 2
EW

OFF

9 IG4
ON

W- B

L- R
WASHER SW

V
1 3

2 L- B

WIPER SW
W1
B1

WASHER MOTOR
INT1 INT2

1
+S 16 L- W L- W
IG4
+S

5
+2 8 L- O L- O
+2

IG4
+1

6
+1 7 L- Y L- Y
+B

IG4
HIGH
MIST

LOW
OFF

INT

+B 17 L L

C14
FRONT WIPER AND WASHER SW
[COMB. SW]
W- B

A
J3
JUNCTION
CONNECTOR

IE

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52)

15A 25A
WASHER WIPER

10 IE 8 II 7 II
L- B

3 IG4
L- B

L- B

L- W

L- O
2 IG4

L- Y

L
L- W
L- O
L- Y

5 3 2 1

F11 4
FRONT WIPER MOTOR
W- B

W- B

IG EA

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 FRONT WIPER AND WASHER
SYSTEM OUTLINE
With the ignition SW turned on, current flows to TERMINAL 17 of the front wiper and washer SW, TERMINAL 2 of the wiper
motor through the WIPER fuse and TERMINAL 2 of the washer motor through the WSH fuse.
1. LOW SPEED POSITION
With the wiper SW turned to LOW position, current flows from TERMINAL 17 of the front wiper and washer SW to
TERMINAL 7 to TERMINAL 5 of the front wiper motor to wiper motor to TERMINAL 4 to GROUND, causing the front wiper
motor to run at low speed.
2. HIGH SPEED POSITION
With the wiper SW turned to HIGH position, current flows from TERMINAL 17 of the front wiper and washer SW to
TERMINAL 8 to TERMINAL 3 of the front wiper motor to wiper motor to TERMINAL 4 to GROUND, causing the front wiper
motor to run at high speed.
3. INT POSITION
With the wiper SW turned to INT position, the relay operates and the current which is connected by relay function flows from
TERMINAL 17 of the front wiper and washer SW to TERMINAL 2 to GROUND. This operates the intermittent circuit and
current flows from TERMINAL 17 of the front wiper and washer SW to TERMINAL 7 to TERMINAL 5 of the front wiper motor
to wiper motor to TERMINAL 4 to GROUND, and operating the wiper.
The intermittent operation is controlled by a condenser’s charged and discharged function installed in the relay, and the
intermittent time is controlled by a time control SW to change the charging time of the condenser.
4. MIST POSITION
With the wiper SW turned to MIST position, current flows from TERMINAL 17 of the front wiper and washer SW to front wiper
mist SW to TERMINAL 2 to GROUND, and current flows from TERMINAL 17 to TERMINAL 7 to TERMINAL 5 of the wiper
motor to wiper motor to TERMINAL 4 to GROUND, causing the front wiper motor to run at low speed.
5. WASHER INTERLOCKING OPERATION
With the washer SW pushed to on, current flows from TERMINAL 2 of the washer motor to TERMINAL 1 to TERMINAL 11 of
the front wiper and washer SW to TERMINAL 2 to GROUND, causing the washer motor to run, and the window washer
emits a water spray. This causes current to flow to washer continuity operation circuit in TERMINAL 17 of the front wiper and
washer SW to TERMINAL 7 to TERMINAL 5 of the front wiper motor to wiper motor to TERMINAL 4 to GROUND, operating
the wiper.

SERVICE HINTS
C14 FRONT WIPER AND WASHER SW [COMB. SW]
2-GROUND : Always continuity
17-GROUND : Approx. 12 volts with the ignition SW at ON position
7-GROUND : Approx. 12 volts with the wiper and washer SW at LOW or MIST position
Approx. 12 volts 2 to 12 seconds intermittently with the wiper and washer SW at INT position
16-GROUND : Approx. 12 volts with the ignition SW on unless the wiper motor at STOP position
8-GROUND : Approx. 12 volts with the wiper and washer SW at HIGH position
F11 FRONT WIPER MOTOR
1-2 : Closed unless the wiper motor at STOP position

: PARTS LOCATION
Code See Page Code See Page Code See Page
C14 36 F11 34 (2ZZ-GE) 33 (1ZZ-FE)
W1
F11 32 (1ZZ-FE) J3 37 35 (2ZZ-GE)
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IE
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
II

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IG4 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)

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 : GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
IE 44 Cowl Side Panel LH
IG 44 Cowl Side Panel RH

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 REAR WIPER AND WASHER

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

15A 15A
WASHER RR WIPER

10 IE 3 IO
L- B

L
C14
3 IG4 REAR WIPER AND WASHER SW
[COMB. SW]

WASHER1
L- B

OFF
W1
2 WASHER MOTOR INT

ON

WASHER2

12 10 13 2

W- B
L- Y
V

P
4 IG4 10 IF1 11 IF1
1 3

L- Y

P
V
L- R

4 BA2 5 BA2 6 BA2

L- Y

P
L
AND WASHER SW
TO FRONT WIPER

[COMB. SW]

3 BB2 5 BB2 4 BB2

L- Y

P
L

R12
REAR WIPER MOTOR
1 AND RELAY 3 2

REAR WIPER
RELAY
W- B

REAR WIPER
CONNECTOR

M
MOTOR
JUNCTION

A
J3

IE

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 SYSTEM OUTLINE
When the ignition SW is turned on, current flows to TERMINAL 2 of the washer motor, TERMINAL 1 of the rear wiper motor
and relay through the RR WIP fuse.
1. REAR WIPER NORMAL OPERATION
With the ignition SW turned on and rear wiper and washer SW turned on, current to TERMINAL 1 of the rear wiper motor and
relay flows to TERMINAL 3 of the rear wiper motor and relay to TERMINAL 10 of the rear wiper and washer SW to
TERMINAL 2 to GROUND. Thus, the relay coil is activated and current to the rear wiper motor to motor to GROUND,
causing the motor to operate the wiper.
2. REAR WIPER INTERMITTENT OPERATION
When the ignition SW is turned on and the rear wiper and washer SW is turned to INT position, current to TERMINAL 1 of
the rear wiper motor and relay flows to TERMINAL 2 of the rear wiper motor and relay to TERMINAL 13 of the rear wiper and
washer SW to TERMINAL 2 to GROUND.
This causes the motor to operate (The point changes) and the intermittent circuit of the relay operates. Intermittent operation
of the circuit is controlled by the charging and discharging of the condenser installed inside the relay.
3. WASHER OPERATION
With the ignition SW turned on and the rear wiper and washer SW turned to ON Position, when the wiper SW is turned
further, current to TERMINAL 2 of the washer motor flows to TERMINAL 3 of the motor to TERMINAL 12 of the rear wiper
and washer SW to TERMINAL 2 to GROUND so that the washer motor rotates and the window washer emits a water, only
while the switch is fully turned.
When the wiper SW is off and then turned washer on (Wiper off side), the wiper SW is on and then turned to washer on
(Wiper on side), only the washer operates.

SERVICE HINTS
W1 WASHER MOTOR
2-GROUND : Approx. 12 volts with the ignition SW at ON position
3-GROUND : Continuity with the washer SW turned on
R12 REAR WIPER MOTOR AND RELAY
1-GROUND : Approx. 12 volts with the ignition SW at ON position
2-GROUND : Continuity with the rear wiper and washer SW at INT position
3-GROUND : Continuity with the rear wiper and washer SW at ON position

: PARTS LOCATION
Code See Page Code See Page Code See Page
C14 36 R12 39 W1 35 (2ZZ-GE)
J3 37 W1 33 (1ZZ-FE)
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IE 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IO 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IF1 46 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IG4 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)
BA2 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)
BB2 48 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left)

: GROUND POINTS

Code See Page Ground Points Location

IE 44 Cowl Side Panel LH

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 REAR WINDOW DEFOGGER

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

1 C

30A 5A 10A
DEF DEF RLY HTR

2 5

2 5 2
DEFB
BODY ECU DEF
RELAY
E DEF
11 4 3 1

12 II 1 IN 7 IP 3 IP
B

(REAR WINDOW DEFOGGER)

B
B1

R- W
W- B

R
B

NOISE FILTER

1
N2

4 BA1
5 1
RDEF IG+
B

2 BB1 GND DEF

3 A9 8
A/C SW
L- W
B

1 A 18 ID1
W- B

R10 A , R11 B
REAR WINDOW
L- W

DEFOGGER

1 B
14
W- B

18 IP
C13
8 BB1 COMBINATION
METER
W- B

7 IE

7 BA1
W- B

W- B

W- B

W- B

BJ IF

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 SERVICE HINTS
DEF RELAY
5-3 : Closed with the ignition SW at ON position and the defogger SW [A/C SW] on
A9 A/C SW
1-GROUND : Approx. 12 volts with the ignition SW at ON position
3-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
A9 36 N2 39 R11 B 39
C13 36 R10 A 39
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IE
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
II
IN 25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IP 25 Cowl No.2 Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
ID1 44 Cowl No.2 Wire and Instrument Panel Wire (Instrument Panel Brace LH)
BA1 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)
BB1 48 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH
BJ 48 Luggage Room Left

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
B1 48 Floor Wire

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 RADIO AND PLAYER (SEPARATE TYPE AMPLIFIER)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

15A 7. 5A
RADIO ECU- ACC
R4
RADIO AND PLAYER
2

6 II 1 II

ACC B AMP ANT MUTE BEEP

GR

11 1 3 7 17
L- Y

B
L- Y
GR
D
D GR
11 IF2
D J6

(SHIELDED)
JUNCTION

B
D CONNECTOR

BR

G
R
D L- Y
4
D J7 ANT
JUNCTION
CONNECTOR

A21
AUTO ANTENNA
L- Y

GR

CONTROL RELAY

S6 A , S7 B
7 A 2 B STEREO COMPONENT AMPLIFIER 1 B 12 B 4 B
BU+ ACC AMP+ MUTE BEEP

GND(E) FL+ FL-

12 A 2 A 9 A
W- B

6 IA1 5 IA1
P

2 4
F15
FRONT DOOR
TWEETER
SPEAKER LH

1 3
V- W
P- L

1 2
W- B

F13
FRONT DOOR
SPEAKER LH

A
J10
JUNCTION
CONNECTOR

IH

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 BR

R4
RADIO AND PLAYER 20
GND

F. L F. R R. L R. R SGND GND3
R8 R9
9 8 19 18 16 10
REAR SPEAKER REAR SPEAKER
LH RH

1 2 1 2

(SHIELDED)

W
R
B

Y
W

B
L

12 IF1 13 IF1 4 IF1 5 IF1

W
R
B

Y
5 B 6 B 13 B 14 B 11 B 4 A 11 A 3 A 10 A
FL FR RL RR GND(S) RL+ RL- RR+ RR-

FR+ FR-
1 A 8 A
S6 A , S7 B
STEREO COMPONENT AMPLIFIER
LG

6 IH1 5 IH1
LG

2 4
F16
FRONT DOOR
TWEETER
SPEAKER RH

1 3
LG- R

L- R

1 2

F14
FRONT DOOR
SPEAKER RH
BR

IF

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 RADIO AND PLAYER (SEPARATE TYPE AMPLIFIER)
SERVICE HINTS
S6 (A), S7 (B) STEREO COMPONENT AMPLIFIER
(B) 2-GROUND : Approx. 12 volts with the ignition SW at ACC or ON position
(A)12-GROUND : Always continuity
(A) 7-GROUND : Always approx. 12 volts

: PARTS LOCATION
Code See Page Code See Page Code See Page
A21 38 J6 37 R9 39
F13 38 J7 37 S6 A 37
F14 38 J10 37 S7 B 37
F15 38 R4 37
F16 38 R8 39
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
II 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IF1
46 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IF2
IH1 46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH

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 MEMO

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 RADIO AND PLAYER (BUILT-IN TYPE AMPLIFIER)

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

7. 5A 15A
ECU- ACC RADIO

1 II 6 II

L- Y
GR

R2 A , R3 B
3 A 4 A RADIO AND PLAYER
ACC +B

GND ANT FL+ FL- FR+ FR- RL+ RL- RR+ RR-
7 A 8 A 2 A 6 A 1 A 5 A 2 B 6 B 1 B 3 B
BR

LG

W
R
B

Y
L

11 IF2

6 IA1 5 IA1 6 IH1 5 IH1 12 IF1 13 IF1 4 IF1 5 IF1

B

4
ANT
LG

W
R
P

Y
L

A21
AUTO ANTENNA
CONTROL RELAY

1 2 1 2
2 1 2 1

R8 R9
F15 F16 REAR SPEAKER REAR SPEAKER
FRONT DOOR FRONT DOOR LH RH
TWEETER TWEETER
LG
P

SPEAKER SPEAKER
LH RH

1 2 1 2

F13 F14
FRONT DOOR FRONT DOOR
SPEAKER LH SPEAKER RH
BR

IF

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 SERVICE HINTS
R2 (A) RADIO AND PLAYER
(A) 4-GROUND : Always approx. 12 volts
(A) 3-GROUND : Approx. 12 volts with the ignition SW at ACC or ON position
(A) 7-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
A21 38 F15 38 R3 B 37
F13 38 F16 38 R8 39
F14 38 R2 A 37 R9 39
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
II 25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IF1
46 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IF2
IH1 46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

IF 44 Instrument Panel Brace RH

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 AUTO ANTENNA

FROM POWER SOURCE SYSTEM (SEE PAGE 52) * 1 : SEPARATE TYPE AMPLIFIER
* 2 : BUILT- IN TYPE AMPLIFIER

D C

7. 5A 5A 15A
ECU- ACC TENS RDC AUTO ANTENNA

2 1

12 IN 7 IK 1 2D

L- R
R- L
GR

R2 A

C R4 B
J8 ANT RADIO AND PLAYER
JUNCTION 12 IE4
CONNECTOR 13 B (* 1)
C 8 A (* 2)

L- R
R- L

B
4 IF2 1 IF1 11 IF2
L- R
R- L
GR

B
6 5 2 4
ACC IG B ANT

E
A21 1
AUTO ANTENNA CONTROL RELAY
W- B

A
J14
JUNCTION
CONNECTOR

BJ

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 SERVICE HINTS
A21 AUTO ANTENNA CONTROL RELAY
1-GROUND : Always continuity
2-GROUND : Always approx. 12 volts
6-GROUND : Approx. 12 volts with the ignition SW at ACC or ON position
5-GROUND : Approx. 12 volts with the ignition SW at ON or ST position

: PARTS LOCATION
Code See Page Code See Page Code See Page
A21 38 J14 38 R4 B 37
J8 37 R2 A 37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IK
2D 23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE4 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IF1
46 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IF2

: GROUND POINTS

Code See Page Ground Points Location

BJ 48 Luggage Room Left

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 COMBINATION METER

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

CONTROL MODULE
E2 A , E3 B , E5 D , E8 E

FROM ENGINE
C D ENGINE CONTROL MODULE

5A 7. 5A
BK/UP LP PANEL 2
MPX1 MPX2 OSW MOPS
10 B 6 A 22 D (* 1)
6 5 18 E 29 E 8 E 22 E (* 3)

Y- B
7 IB 19 IM

(* 3)
GR
BR- W

LG- R

G- O
11 IB
FROM ILLUMINATIONS

G- B
R- L

OIL PRESSURE SW

OIL PRESSURE SW
4 IE5 13 IE5 1 1

4 IM

LG- R
W- G

G- O

(VVTL)
BR- W

O2
E7
C12 A , C13 B
COMBINATION METER 12 B 4 B 6 B 12 A 18 B
6 2F
METER ILLUMINATION

2 2C

LCD
ILLUMINATION
SPEEDOMETER

TACHOMETER

BUZZER
LCD DISPLAY
R- L

7 A 8 A 20 A 13 B 1 A 6 A 18 A 15 B 10 B 14 B
LG- B

LG

BR- Y

G- W

L- W
G- Y
P- B

L- B
BR

10 IE5 1 IE5
LG- B

LG

6 EA2 4 EA2
G- Y

LG

CONTROL MODULE

FROM O/D MAIN SW

VEHICLE SPEED SENSOR
(COMBINATION METER)

2 3
TO A/C EVAPORATOR

TO A/C SW
FROM ENGINE

SE SI
TEMP. SENSOR
BR

IG+
1
V1

IH

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52) * 1 : 1ZZ- FE
* 2 : CANADA
* 3 : 2ZZ- GE

BELT WARNING LIGHT

FROM HEATER RELAY

TO PASSENGER SEAT
A B * 4 : 1ZZ- GE W/ CRUISE CONTROL
J8 * 5 : EXCEPT * 4
JUNCTION
5A 7. 5A CONNECTOR
WARNING ECU- B
D W- R

[CLOCK]
TO CRUISE CONTROL ECU
(* 4)
6 1
D D W- R
11 IM 3 IM (* 4 * 2)

W- R
TO CLOCK

(* 4)
W- R
R- Y

L- R

(* 5 * 2)
10 IF
V- W
P

5 IM
W- R

C12 A , C13 B
22 A 11 A 2 B 13 A 9 A COMBINATION METER

SPORTS A/T1

SPORTS A/T2
OIL P
CHG
ABS

PKB

21 A 5 A 17 A 10 A 17 B 8 B
W- B
R- B

R- B

GR
R

20 IE3
FROM BACK- UP

FROM SKID CONTROL

ECU WITH ACTUATOR
TO RHEOSTAT
LIGHT SW

W- B

EB

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 208
SPORTS A/T3

SPORTS A/T4

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COMBINATION METER

A/T OIL TEMP.

DOOR C12 A , C13 B

COMBINATION METER

FASTEN BELT

12
FUEL WARNING
W- B W- B

II
19 A

IF
20 IM
CRUISE

2004 CELICA (EWD538U)

TO CRUISE CONTROL ECU(* 1) Y- B

16 A
TO ENGINE CONTROL MODULE(* 3)

TURN R
G- Y

3 B
9 B

FROM HAZARD SW,

TURN L TURN SIGNAL SW
[COMB. SW]
G- B
4 A

1 B
TAIL

BEAM
TO DAYTIME RUNNING W- R 3 A R- Y FROM HEADLIGHT
2 A

LIGHT RESISTOR RH(UPR)

CHECK ENGINE
TO ENGINE R- B
7 B

CONTROL MODULE
R- L
Y- G
 FROM POWER SOURCE SYSTEM (SEE PAGE 52) * 6 : W/ FRONT FOG LIGHT
* 7 : W/O FRONT FOG LIGHT

G- B

L- O
15A

O/D MAIN SW
HEAD RH 2 3
LWR
FROM IGNITION

F12
FRONT FOG

O3
E
LIGHT RELAY
1
4
3 2D
SW

1 5
R- W

L- R

BUCKLE SW RH
2

R- W
(* 6)

BUCKLE SW LH
9 IE4 J5

R- W
(*6)
JUNCTION

W- R
CONNECTOR
R- W A A R- W

B9
B8
(* 7) 1 2

R- W(*7)

W- L

L- Y
W
L

L
R- W(*6)
B6 A , B7 B
14 A 16 B BODY ECU 4 B 1 B 7 B 2 B 14 B
SG4 SG2 DBKL SG3 PBKL

L MPX1 PKB FU- FUA FU+ BLVL DCTY PCTY

17 A 16 A 19 B 3 B 12 B 13 B 2 A 20 B 21 B
HEAD
SRS

Y- G

R- L

R
R- B

BR- W

Y- G
Y- R

R- Y

R
I3
6 IE4
R- B
COMBINATION METER

R
R- B
C12 A , C13 B

5 II2 BRAKE FLUID LEVEL WARNING SW

DOOR COURTESY SW RH
DOOR COURTESY SW LH
PARKING BRAKE SW

1 3 2 1 1 1 1
FE FR FV
15 A
R- B

Y- G
P3

F17 2
D3

D4
FUEL SENDER
R- L
B2
B- Y

FROM SKID CONTROL ECU

W- B
WITH ACTUATOR
SENSOR ASSEMBLY
TO CENTER AIRBAG

EB

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 COMBINATION METER
SERVICE HINTS
B2 BRAKE FLUID LEVEL WARNING SW
1-2 : Closed with the float down
P3 PARKING BRAKE SW
1-GROUND : Closed with the parking brake lever pulled up
O2 OIL PRESSURE SW
1-GROUND : Opened with the oil pressure above approx. 0.2 kgf/cm2 (2.8 psi, 19.6 kpa)
C12 (A) COMBINATION METER
(A)22-GROUND : Approx. 12 volts with the ignition SW at ON position
(A)11-GROUND : Always approx. 12 volts
(A) 3, (A) 7, (A) 10, (A) 19-GROUND : Always continuity

: PARTS LOCATION
Code See Page Code See Page Code See Page
32 (1ZZ-FE) D4 38 J8 37
B2
34 (2ZZ-GE) E2 A 32 (1ZZ-FE) 33 (1ZZ-FE)
O2
B6 A 36 E3 B 32 (1ZZ-FE) 35 (2ZZ-GE)
B7 B 36 E5 D 32 (1ZZ-FE) O3 37
B8 36 E7 34 (2ZZ-GE) P3 37
B9 36 E8 E 34 (2ZZ-GE) 33 (1ZZ-FE)
V1
C12 A 36 F12 36 35 (2ZZ-GE)
C13 B 36 F17 38
D3 38 J5 37
,,,
,,,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

Code See Page Junction Block and Wire Harness (Connector Location)
IB 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IF
II 25 Instrument Panel Wire and Instrument Panel J/B ((Instrument Panel Brace RH))
IM
2C 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2D
23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
40 (1ZZ-FE)
EA2 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
42 (2ZZ-GE)
IE3
IE4 44 Engine
g Room Main Wire and Instrument Panel Wire (Instrument
( Panel Brace LH))
IE5
II2 46 Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH)

: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EB Front Left Fender
42 (2ZZ-GE)
IF 44 Instrument Panel Brace RH
IH 44 Cowl Side Panel RH

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 : SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
40 (1ZZ-FE) I3 46 Floor Wire
E1 Engine Room Main Wire
42 (2ZZ-GE)

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 RADIATOR FAN AND CONDENSER FAN

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

1 A 1

30A 5A * 1 : 1ZZ- FE 30A

RDI FAN * 2 : 2ZZ- GE CDS
RLY

2 1 2

1 IC
Y- R

31 2F

5 1 1 5 1 5

FAN FAN 4 FAN

NO. 1 NO. 2 NO. 3
RELAY RELAY RELAY

3 2 2 3 2 3

3 2G 1 2F 2 2F 28 2F 8 2H 2 2H 4 2G 7 2H
L- Y
B

W- R

B- W

W- B

W- B
L- W
L- Y
(* 2)

(* 2)

3 IE4
2
R1
L- W
L- Y
(*1)

(*1)

M RADIATOR
2 EA3 3 EA3
L- Y

FAN MOTOR
1
L- W
L- Y
(* 2)

(* 2)

A/C CONDENSER

4 IG5
2
FAN MOTOR

M
3 B (*1)
A1

4 B
L- Y

1
14 G 5 G (*2)
FAN CF

A3
A/C SINGLE E 3 B , E10 G
PRESSURE SW
ENGINE
CONTROL
W- B

3 MODULE
W- B

W- B
W- B

EM IG EA EM EB

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 SYSTEM OUTLINE
Fan motor operation
The fan motor is operated according to the condition of the A/C operation, water temperature, or abnormality in the A/C
system.

SERVICE HINTS
A3 A/C SINGLE PRESSURE SW
3-2 : Open above approx. 15.5 kgf/cm2 (220 psi, 1520 kpa)
Close below approx. 12.5 kgf/cm2 (178 psi, 1226 kpa)

: PARTS LOCATION
Code See Page Code See Page Code See Page
32 (1ZZ-FE) A3 34 (2ZZ-GE) 33 (1ZZ-FE)
A1 R1
34 (2ZZ-GE) E3 B 32 (1ZZ-FE) 35 (2ZZ-GE)
A3 32 (1ZZ-FE) E10 G 34 (2ZZ-GE)
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IC 25 Engine Room Main Wire and Instrument Panel J/B (Instrument Panel Brace RH)
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA3 42 (2ZZ-GE) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
IE4 44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IG5 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
EB
42 (2ZZ-GE)
Front Left Fender
40 (1ZZ-FE)
EM
42 (2ZZ-GE)
IG 44 Cowl Side Panel RH

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 AIR CONDITIONING

FROM POWER SOURCE SYSTEM (SEE PAGE 52)

10A 50A
HTR HTR

3 IC 3 IP 1 2G

R R

B- Y
B
R

30 2F 1 1 1 1 ID

5 1 1 5

MG/C HTR 4 1 IQ
RELAY RELAY

B
3 2 2 3

1
B3
M BLOWER
2 2B 32 2F 1 1 MOTOR
2
W- B
B- W

V- W
Y- O

Y- B
(*2)

(*1)

E2 A , E3 B ,
B4
B- W

E 8 E , E12 I BLOWER RESISTOR

12 A (* 1) ENGINE CONTROL 9 IB
2 E (* 2) MODULE B- W 1 HI LO 4 W- B
I2
ACMG
M2 M1
3 2
B- W

PRE(* 1) 13 IM 10 IP
LCKI HP(*2) MPX1 MPX2

L- W
L- R

28 B 18 B 10 B 6 A (* 1)
23 I 1 E 18 E 29 E (* 2)
5 6
LG- R

V- W

V- W
G- O
(* 1)

M2 M1
G

4
H2

9 EA1 2 IE4
(*2)
G

8 1 W- B
B- W

(* 1)
G

LO GND
A/C MAGNET CLUTCH

3 1 3 IG5
AND LOCK SENSOR

B5
BLOWER SW
V- W
O

7
1 G- O G- O
IE5
A2

4
LG- R LG- R
2 IE5
BR

A3
CONNECTOR

A A/C DUAL
JUNCTION

PRESSURE
SW
J1

A 4
BR

W- B
W- B

W- B

ED IG EA EM

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 FROM POWER SOURCE SYSTEM (SEE PAGE 52) * 1 : 1ZZ- FE
* 2 : 2ZZ- GE

B A

7. 5A 5A
ECU- B WARNING

1 6

3 IM 11 IM

R R- Y
L- R

A9
1 A/C SW
IG+

A/C EVAPORATOR
2

TEMP. SENSOR
A/C LA/C DEF GND

A8
1 9 10 8 3

W- B
G- R

L- W
G- Y

L- B
G
16 ID1 15 ID1 14 ID1 7 ID1 18 ID1
G- W

L- W
R- Y

G- Y
L- R

L- B
G

11 A 22 A 18 A 6 A 15 B 10 B 14 B

W- B

13 A 18 B 12 A 7 A
C12 A , C13 B
COMBINATION METER
LG- R
V- W

G- O

BR
W- B

W- B

V- W
W- B

G- O

LG- R

3 IQ 17 IP
18
W- B
IP

7 IE
BR
W- B

IF IH

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 AIR CONDITIONING
SYSTEM OUTLINE
1. HEATER BLOWER MOTOR OPERATION
Current is applied at all times through the HTR fuse (50A) to TERMINAL 5 of the heater relay.
When the ignition SW is turned on, current flows through the HTR fuse (10A) to TERMINAL 2 of the heater relay to the coil
side to TERMINAL 1 to TERMINAL 8 of the blower SW.

∗ Low speed operation

When the blower SW is moved to LO position, current flows to TERMINAL 8 of the blower SW to TERMINAL 1 to
GROUND, causing the heater relay to switch on. This causes the current to flow from the HTR fuse (50A) to TERMINAL
5 of the heater relay to TERMINAL 3 to TERMINAL 1 of the blower motor to TERMINAL 2 to TERMINAL 1 of the blower
resistor to TERMINAL 4 to GROUND, causing the blower motor to rotate at low speed.

∗ Medium speed operation (Operation at M1, M2)

When the blower SW is moved to M1 position, current flows to TERMINAL 8 of the blower SW to TERMINAL 1 to
GROUND, turning the heater relay to switch on. This causes the current to flow from the HTR fuse (50A) to TERMINAL
5 of the heater relay to TERMINAL 3 to TERMINAL 1 of the blower motor to TERMINAL 2 to TERMINAL 1 of the blower
resistor to TERMINAL 2 to TERMINAL 6 of the blower SW to TERMINAL 1 to GROUND. At this time, the blower
resistance of the blower resistor is less than at low speed, so the blower motor rotates at medium low speed.
When the blower SW is moved to M2 position, current flows through the motor flows from TERMINAL 1 of the blower
resistor to TERMINAL 3 to TERMINAL 5 of the blower SW to TERMINAL 1 to GROUND. At this time, resistance of the
blower resistor is less than at M1 position, so the blower motor rotates at medium high speed.

∗ High speed operation

When the blower SW is moved to HIGH position, current flows to TERMINAL 8 of the blower SW to TERMINAL 1 to
GROUND, turning the heater relay to switch on.
This causes the current to flow from the HTR fuse (50A) to TERMINAL 5 of the heater relay to TERMINAL 3 to
TERMINAL 1 of the blower motor to TERMINAL 2 to TERMINAL 4 of the blower SW to TERMINAL 1 to GROUND,
causing the blower motor to rotate at high speed.

SERVICE HINTS
B4 BLOWER RESISTOR
1-3 : Approx. 0.47 Ω
1-2 : Approx. 1.42 Ω
1-4 : Approx. 2.28 Ω
B5 BLOWER SW
8-1 : Continuity with the blower SW at LO, M1, M2 and HI position
6-1 : Continuity with the blower SW at M1 position
5-1 : Continuity with the blower SW at M2 position
4-1 : Continuity with the blower SW at HI position

: PARTS LOCATION
Code See Page Code See Page Code See Page
32 (1ZZ-FE) B3 36 E3 B 32 (1ZZ-FE)
A2
34 (2ZZ-GE) B4 36 E8 E 34 (2ZZ-GE)
32 (1ZZ-FE) B5 36 E12 I 34 (2ZZ-GE)
A3
34 (2ZZ-GE) C12 A 36 33 (1ZZ-FE)
J1
A8 36 C13 B 36 35 (2ZZ-GE)
A9 36 E2 A 32 (1ZZ-FE)

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 26 Engine Room R/B No.1 (Engine Compartment Left)

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 ,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IB
IC 25 Engine
g Room Main Wire and Instrument Panel J/B (Instrument
( Panel Brace RH))
ID
IE
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IM
IP
25 Cowl No.2
No 2 Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IQ
2B 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2F
23 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2G

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
40 (1ZZ-FE)
EA1 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1)
No 1)
42 (2ZZ-GE)
ID1 44 Cowl No.2 Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE4
44 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH)
IE5
IG5 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)

: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
ED Cylinder Head Cover LH
42 (2ZZ-GE)
40 (1ZZ-FE)
EM Front Left Fender
42 (2ZZ-GE)
IF 44 Instrument Panel Brace RH
IG
44 Cowl Side Panel RH
IH

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I2 46 Cowl No.2 Wire

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 I GROUND POINT

* 1 : SEPARATE TYPE AMPLIFIER

* 2 : BUILT- IN TYPE AMPLIFIER

CRUISE CONTROL W- B A
ECU (1ZZ- FE)

COMBINATION W- B A
(ECC)
SW (1ZZ- FE)

CONNECTOR
JUNCTION
10
CRUISE CONTROL W- B W- B A
IG3
ACTUATOR

J9
7
W- B W- B A A W- B A A W- B
(E1) IB1 CLOCK
MOON ROOF (CANADA)
CONTROL RELAY
AND MOTOR W- B
(E)

W- B

A W- B GLOVE BOX LIGHT

MOON ROOF CONTROL W- B AND SW
SW AND PERSONAL
LIGHT

CONNECTOR
JUNCTION
BI A W- B STEREO COMPONENT
(* 1) AMPLIFIER

J10

BODY ECU

IG1 RELAY

4 1 14 DOOR LOCK MOTOR,

W- B W- B A A W- B W- B DOOR UNLOCK
O/D MAIN SW IN IL IH1 DETECTION SW AND
DOOR KEY LOCK AND
UNLOCK SW RH
5
SHIFT LOCK CONTROL W- B BR COMBINATION
IN (ES)
ECU METER

1 IH
POWER WINDOW MASTER W- B
IO
SW

4
W- B
(E1) IH
CENTER AIRBAG
SENSOR 3 18
ASSEMBLY W- B W- B
(E2) IH IP (GND) A/C SW

10 3
W- B W- B
CLOCK IM IQ BLOWER SW
(USA)

11 17
CIGARETTE W- B W- B
IF IP BLOWER RESISTOR
LIGHTER

20 8
COMBINATION W- B W- B
(E2) IM IE
METER

12 II 7 IE
BR
W- B

RADIO AND PLAYER

W- B

(* 1)
W- B

BR
RADIO AND PLAYER
(* 2)

IF

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 7
W- B
2H EFI RELAY

HEADLIGHT CONTROL W- B
ECU LH (W/ HID)
IG2 RELAY

4
DAYTIME RUNNING W- B
E1 2G FAN NO. 2 RELAY
LIGHT RESISTOR

W- B

W- B
W- B FRONT FOG LIGHT
BRAKE FLUID LEVEL W- B W- B LH
E1
WARNING SW
W- B RADIATOR FAN
W- B E1
FRONT TURN SIGNAL MOTOR
E1
LIGHT LH

W- B

W- B
FRONT SIDE MARKER

W- B
LIGHT LH

DRL RELAY W- B W- B
(- S) 2 E1
NO. 3 W- B
E1 2 (L)
W- B E1

W- B
ENGINE CONTROL (EC) DRL RELAY

(2ZZ- GE)
MODULE (1ZZ- FE)
W- B NO. 4
W- B
7 E1 2 (- S)
W- B
EA3 W- B

W- B

W- B
(2ZZ- GE)
W- B
W- B W- B 1 HTR RELAY
FRONT PARKING LIGHT
LH

20 EM
W- B W- B
W- B

COMBINATION (VR) IE3

METER

HEADLIGHT LH W- B W- B
I1 2
(LOW) (W/O HID) W- B W- B HEADLIGHT BEAM LEVEL
IG5
CONTROL ACTUATOR RH
W- B W- B
E1 15
W- B W- B HEADLIGHT BEAM LEVEL
ABS ACTUATOR W- B I5 IG5
EB CONTROL ACTUATOR LH
W- B

W- B HEADLIGHT BEAM LEVEL

I5
CONTROL SW
W- B W- B

6 3 1 4
A W- B W- B B- W B- W W- B PARK/NEUTRAL
IC1 IC1 IE4 EA1
(A/T) (A/T) (A/T) (A/T) POSITION SW

W- B W- B
CLUTCH START SW
(M/T) (M/T)
14
A W- B W- B B B W- B REMOTE CONTROL
IA1
MIRROR SW

J11 DOOR LOCK MOTOR,

JUNCTION B W- B DOOR UNLOCK
CONNECTOR DETECTION SW AND
DOOR KEY LOCK AND
UNLOCK SW LH

W- B W- B WIPER AND WASHER SW

[COMB. SW]

A W- B W- B TURN SIGNAL FLASHER

CONNECTOR

RELAY
JUNCTION

A W- B W- B DATA LINK
CONNECTOR 3
J3

A W- B W- B POWER WINDOW LOCK

SW

W- B A A W- B W- B COMBINATION
(EL)
SW

BR BR
RHEOSTAT

IE

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 I GROUND POINT

26
HEATED OXYGEN BR
SENSOR 2F
(BANK 1 SENSOR 1)

25 13 11
HEATED OXYGEN BR BR BR DATA LINK
SENSOR 2F 2F IE5
(BANK 1 SENSOR 2) CONNECTOR 3

3 2B

BR
A
A BR BR A/C MAGNETIC
CONNECTOR
CLUTCH AND LOCK
SENSOR
JUNCTION

A BR BR
J1

(E1)

A
IDLE AIR CONTROL W- B A A W- B
(E01)
VALVE
J2 ENGINE
JUNCTION A CONTROL
CONNECTOR W- B MODULE
(E02)
W- B

1
W- B W- B
EA1 (E03)

C W- B NOISE FILTER
(IGNITION SYSTEM)

C W- B IGNITION COIL
AND IGNITER NO. 1

C W- B IGNITION COIL

CONNECTOR
AND IGNITER NO. 2
JUNCTION
C W- B IGNITION COIL
AND IGNITER NO. 3
J2

C W- B IGNITION COIL
AND IGNITER NO. 4
W- B

W- B

C
W- B

W- B
BR

W- B

(1ZZ- FE) (1ZZ- FE)

ED EC

W- B HEADLIGHT CONTROL
(W/ HID) ECU RH

A/C DUAL W- B W- B FRONT FOG LIGHT

I4
PRESSURE SW RH
W- B

A/C SINGLE W- B W- B FRONT TURN SIGNAL

I4
PRESSURE SW LIGHT RH
W- B

FRONT PARKING LIGHT W- B W- B HEADLIGHT RH

I4 (LOW)
RH (W/O HID)
W- B

FRONT SIDE MARKER W- B W- B

I4 FRONT WIPER MOTOR
LIGHT RH
W- B

W- B

EA IG

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 J14
JUNCTION
CONNECTOR
2
AUTO ANTENNA W- B W- B A A W- B W- B HIGH MOUNTED
BA1
CONTROL RELAY STOP LIGHT

W- B A A W- B DOOR CONTROL
RECEIVER

REAR COMBINATION W- B W- B A A W- B
FUEL PUMP

W- B
LIGHT LH

7 8
W- B W- B W- B REAR WINDOW
BA1 BB1
DEFOGGER
REAR COMBINATION W- B
LIGHT RH

BL BJ

W- B
12 BA1
W- B

3 BB1

W- B
W- B

LICENSE PLATE
LIGHT LH

LICENSE PLATE W- B
LIGHT RH

BK

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 I GROUND POINT

26
HEATED OXYGEN BR
SENSOR 2F
(BANK 1 SENSOR 1)

25 13 11
HEATED OXYGEN BR BR BR DATA LINK
SENSOR 2F 2F IE5
(BANK 1 SENSOR 2) CONNECTOR 3

3 2B

BR
A
A BR BR A/C MAGNETIC
CLUTCH AND LOCK
CONNECTOR SENSOR
6 22
A BR BR BR COMBINATION
JUNCTION

EA3 IE3 (ECC)

SW

A BR BR
J1

(E1)

A
W- B
(E01)

ENGINE
W- B CONTROL
(E02) MODULE

W- G
(E03)

W- R
(ME01)

W- B NOISE FILTER
(IGNITION SYSTEM)

W- B IGNITION COIL
E1
AND IGNITER NO. 1

W- B
W- B IGNITION COIL
E1
AND IGNITER NO. 2
W- B

W- B IGNITION COIL
E1
AND IGNITER NO. 3
W- B
W- B

W- B

W- B IGNITION COIL
E1
W- G

W- R

AND IGNITER NO. 4

BR

W- B W- B

(2ZZ- GE) (2ZZ- GE)

ED EC

W W
E3 AIR PUMP MOTOR
B

EN EO

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 : PARTS LOCATION
Code See Page Code See Page Code See Page
33 (1ZZ-FE) J2 35 (2ZZ-GE) J10 37
J1
35 (2ZZ-GE) J3 37 J11 38
J2 33 (1ZZ-FE) J9 37 J14 38

: RELAY BLOCKS

Code See Page Relay Blocks (Relay Block Location)

1 26 Engine Room R/B No.1 (Engine Compartment Left)
2 27 Engine Room R/B No.2 (Engine Compartment Left)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
IE
IF
IH
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
II
IL
IM
IN
25 Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IO
IP
25 Cowl No.2
No 2 Wire and Instrument Panel J/B (Instrument Panel Brace RH)
IQ
2B 23 Engine Wire and Engine Room J/B (Engine Compartment Left)
2F
2G 23 Engine
g Room Main Wire and Engine
g Room J/B (Engine
( g Compartment Left))
2H

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

Code See Page Joining Wire Harness and Wire Harness (Connector Location)
40 (1ZZ-FE)
EA1
42 (2ZZ-GE) Engine
g Wire and Engine
g Room Main Wire (Inside
( of Engine
g Room R/B No.1))
EA3 42 (2ZZ-GE)
IA1 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IB1 44 Roof Wire and Instrument Panel Wire (Left Kick Panel)
IC1 44 Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH)
IE3
IE4 44 Engine
g Room Main Wire and Instrument Panel Wire (Instrument
( Panel Brace LH))
IE5
IG3
46 Engine Room No.2
No 2 Wire and Instrument Panel Wire (Right Kick Panel)
IG5
IH1 46 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
BA1 48 Back Door No.1 Wire and Floor Wire (Quarter Panel LH)
BB1 48 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left)

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 I GROUND POINT
: GROUND POINTS

Code See Page Ground Points Location

40 (1ZZ-FE)
EA Front Right Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
EB Front Left Fender
42 (2ZZ-GE)
40 (1ZZ-FE)
EC
42 (2ZZ-GE)
Cylinder Head Cover LH
40 (1ZZ-FE)
ED
42 (2ZZ-GE)
40 (1ZZ-FE)
EM Front Left Fender
42 (2ZZ-GE)
EN 42 (2ZZ-GE) Air Pump Bracket
EO 42 (2ZZ-GE) Engine Mount Brace RH
IE 44 Cowl Side Panel LH
IF 44 Instrument Panel Brace RH
IG
44 Cowl Side Panel RH
IH
BI 48 Roof Left
BJ 48 Luggage Room Left
BK 48 Back Door Left
BL 48 Back Panel Center

: SPLICE POINTS

Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
40 (1ZZ-FE) I1 46 Engine Room Main Wire
E1 Engine Room Main Wire
42 (2ZZ-GE) I4 46 Engine Room No.2 Wire
E3 42 (2ZZ-GE) Engine Wire I5 46 Instrument Panel Wire

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 MEMO

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 J POWER SOURCE (Current Flow Chart)

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 J

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 J POWER SOURCE (Current Flow Chart)

Engine Room J/B (See Page 22)

Fuse System Page
7.5A ALT-S Charging 64
Cruise Control (2ZZ-GE) 162
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
7.5A AM2
SRS 149
Starting and Ignition (1ZZ-FE) 56
Starting and Ignition (2ZZ-GE) 60
Headlight (w/o HID) 92
7.5A HEAD LVL DRL NO.1
Headlight Beam Level Control 96
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
7.5A ST
Starting and Ignition (1ZZ-FE) 56
Starting and Ignition (2ZZ-GE) 60
Cruise Control (2ZZ-GE) 162
Electronically Controlled Transmission and A/T Indicator (1ZZ-FE) 168
10A EFI NO.1 Electronically Controlled Transmission and A/T Indicator (2ZZ-GE) 174
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
Engine Control (1ZZ-FE) 66
10A EFI NO.2
Engine Control (2ZZ-GE) 76
10A HAZ Turn Signal and Hazard Warning Light 114
Horn 182
10A HORN Multiplex Communication System 120
Wireless Door Lock Control 130
15A AUTO ANTENNA Auto Antenna 204
Headlight (w/ HID) 88
15A HEAD LH LWR
Headlight (w/o HID) 92
Combination Meter 206
Fog Light 98
15A HEAD RH LWR
Headlight (w/ HID) 88
Headlight (w/o HID) 92
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
15A IG2
Starting and Ignition (1ZZ-FE) 56
Starting and Ignition (2ZZ-GE) 60
Cruise Control (2ZZ-GE) 162
Electronically Controlled Transmission and A/T Indicator (1ZZ-FE) 168
20A EFI Electronically Controlled Transmission and A/T Indicator (2ZZ-GE) 174
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
Headlight (w/ HID) 88
20A HEAD RH UPR
Multiplex Communication System 120
∗ These are the page numbers of the first page on which the related system is shown.

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 J
Fuse System Page
25A ABS NO.2 ABS 154
30A CDS Radiator Fan and Condenser Fan 212
30A RDI Radiator Fan and Condenser Fan 212
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
Headlight (w/o HID) 92
40A MAIN
Multiplex Communication System 120
Starting and Ignition (1ZZ-FE) 56
Starting and Ignition (2ZZ-GE) 60
50A ABS NO.1 ABS 154
50A HTR Air Conditioning 214
Charging 64
Illumination 104
120A ALT Light Reminder Buzzer 116
Multiplex Communication System 120
Taillight 100

Instrument Panel J/B (See Page 24)

Fuse System Page
5A ABS-IG ABS 154
Back-Up Light 110
Clock (CANADA) 186
Combination Meter 206
Cruise Control (1ZZ-FE) 158
5A BK/UP LP Cruise Control (2ZZ-GE) 162
Electronically Controlled Transmission and A/T Indicator (1ZZ-FE) 168
Electronically Controlled Transmission and A/T Indicator (2ZZ-GE) 174
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
Door Lock Control 134
Electric Tension Reducer 144
Headlight (w/ HID) 88
Headlight (w/o HID) 92
Interior Light 108
5A BODY ECU-IG Key Reminder and Seat Belt Warning 146
Light Reminder Buzzer 116
Moon Roof 142
Multiplex Communication System 120
Power Window 138
Wireless Door Lock Control 130
Multiplex Communication System 120
5A DEF RLY Power Window 138
Rear Window Defogger 196

∗ These are the page numbers of the first page on which the related system is shown.

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 J POWER SOURCE (Current Flow Chart)
Fuse System Page
Cruise Control (1ZZ-FE) 158
5A ECU-IG
Cruise Control (2ZZ-GE) 162
5A FAN RLY Radiator Fan and Condenser Fan 212
Auto Antenna 204
Clock (CANADA) 186
Electric Tension Reducer 144
5A TENS RDC
Moon Roof 142
Multiplex Communication System 120
Shift Lock 180
ABS 154
Air Conditioning 214
Charging 64
Clock (CANADA) 186
Combination Meter 206
Cruise Control (1ZZ-FE) 158
5A WARNING Cruise Control (2ZZ-GE) 162
Electronically Controlled Transmission and A/T Indicator (1ZZ-FE) 168
Electronically Controlled Transmission and A/T Indicator (2ZZ-GE) 174
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
Key Reminder and Seat Belt Warning 146
Multiplex Communication System 120
Cigarette Lighter and Clock (USA) 184
Clock (CANADA) 186
7.5A DOME Interior Light 108
Key Reminder and Seat Belt Warning 146
Multiplex Communication System 120
Auto Antenna 204
Cigarette Lighter and Clock (USA) 184
Clock (CANADA) 186
Door Lock Control 134
Electric Tension Reducer 144
Interior Light 108
Key Reminder and Seat Belt Warning 146
7.5A ECU-ACC Light Reminder Buzzer 116
Moon Roof 142
Multiplex Communication System 120
Power Window 138
Radio and Player (Built-In Type Amplifier) 202
Radio and Player (Separate Type Amplifier) 198
Remote Control Mirror 188
Wireless Door Lock Control 130
Air Conditioning 214
7.5A ECU-B
Clock (CANADA) 186
∗ These are the page numbers of the first page on which the related system is shown.

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 J
Fuse System Page
Combination Meter 206
7.5A ECU-B Interior Light 108
Multiplex Communication System 120
Door Lock Control 134
Electric Tension Reducer 144
Headlight (w/ HID) 88
Headlight (w/o HID) 92
Interior Light 108
7.5A MPX-B Key Reminder and Seat Belt Warning 146
Light Reminder Buzzer 116
Moon Roof 142
Multiplex Communication System 120
Power Window 138
Wireless Door Lock Control 130
Engine Control (1ZZ-FE) 66
7.5A OBD
Engine Control (2ZZ-GE) 76
7.5A PANEL 1 Illumination 104
Combination Meter 206
7.5A PANEL 2
Illumination 104
7.5A SRS-IG SRS 149
7.5A TURN Turn Signal and Hazard Warning Light 114
Air Conditioning 214
10A HTR
Rear Window Defogger 196
ABS 154
Cruise Control (1ZZ-FE) 158
Cruise Control (2ZZ-GE) 162
Electronically Controlled Transmission and A/T Indicator (1ZZ-FE) 168
10A STOP Electronically Controlled Transmission and A/T Indicator (2ZZ-GE) 174
Engine Control (1ZZ-FE) 66
Engine Control (2ZZ-GE) 76
Shift Lock 180
Stop Light 112
10A TAIL Taillight 100
15A CIG Cigarette Lighter and Clock (USA) 184
15A FR FOG Fog Light 98
Radio and Player (Built-In Type Amplifier) 202
15A RADIO
Radio and Player (Separate Type Amplifier) 198
15A RR WIPER Rear Wiper and Washer 194
15A S/ROOF Moon Roof 142
Front Wiper and Washer 190
15A WASHER
Rear Wiper and Washer 194
Door Lock Control 134
20A DOOR
Electric Tension Reducer 144

∗ These are the page numbers of the first page on which the related system is shown.

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 J POWER SOURCE (Current Flow Chart)
Fuse System Page
Interior Light 108
Key Reminder and Seat Belt Warning 146
Light Reminder Buzzer 116
20A DOOR Moon Roof 142
Multiplex Communication System 120
Power Window 138
Wireless Door Lock Control 130
Multiplex Communication System 120
20A FL P/W
Power Window 138
Multiplex Communication System 120
20A FR P/W
Power Window 138
25A WIPER Front Wiper and Washer 190
Multiplex Communication System 120
30A DEF
Rear Window Defogger 196

Engine Room R/B No.1 (See Page 26)

Fuse System Page
Cruise Control (2ZZ-GE) 162
10A ETCS
Engine Control (2ZZ-GE) 76
50A A-AMP Engine Control (2ZZ-GE) 76

Engine Room R/B No.2 (See Page 27)

Fuse System Page
Headlight (w/ HID) 88
10A HEAD LH UPR
Headlight (w/o HID) 92
Headlight (w/ HID) 88
10A HEAD RH UPR
Headlight (w/o HID) 92

∗ These are the page numbers of the first page on which the related system is shown.

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 MEMO

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 K CONNECTOR LIST
A1 A2 A3 A6 A7 A8
Black Gray Gray Gray Black

1 2
1 2 1 2 12
1
1 2 2 3
3 4

A9 A12 A13 A14 A15 A16

Yellow Yellow Black

1 2 3 4 5 1 2 1 2 2 1 2 1
1 2 3 4
6 7 8 9 10

A17 A18 A19 A20 A21

Gray Dark Gray Dark Gray Black

1 2 1 2
1 2 3 1 2 3 4 1 2
4 5 6 3 4 5 6

A22 B1 B2 B3 B4
Black Gray Gray Black Black

1
1 2 3 1 2 2
1 2 1 2
3 4

B5 B6 B7 B8

1 2 3
1 2 3 4 5 6 7 8 9 101112 13 1 2 3 4 5 6 7 8 9 10 11 1 2
4 5 6 7 8 3 4
12 13 14 15 16 17 18 19 20 21 22
14 15 16171819 2021222324 25

B9 B10 C1 C2 C3 C4
Black Black Black Black (1ZZ-FE) Gray

1 2 1 2
1 2 1 2 1 2 1 2
3 4 3 4

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 K
C4 C5 C6 C7
(2ZZ-GE) Black Black Yellow Yellow

1 2 3 4 A B A B
1 2 1 2 3 4 5 6
1 2 3 4 5 6
7 8 9 1011121314151617

7 8 9 101112
1819 2021 22 23 2425 26 27 28

C8 C9 C10 C10 C11

Yellow (Canada) Blue (USA)

A B 1 2 3 4
1 2 1 2 3 4 5 1 2
1 2 3 4 5 6 3 4 5 6 7 8 9 10 11 12

7 8 9 101112

C12 C13 C14

Blue Black

1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
12 13 14 15 16 17 18 19 20 21 22 10 11 12 13 14 15 16 17 18 10 11 12 131415 16 17 18

C15 C16 C17 C18

Black

1 2 1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 1 2 3 4 5 6
9 10111213141516
9 10 1112131415 16 17

D1 D2 D3 D4

1 1
1 2 3 4 5

16 15 14 13 12 11 10 9

8 7 6 5 4 3 2 1

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 K CONNECTOR LIST
D5 D6 D7 D8
Black Black Yellow Yellow

1 2 3 4 5 6 1 2 3 4 5 6 1 2 1 2

D9 E1 E2 E3
Gray Gray Black

1 2 3 4 5
1 2 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9
6 7 8 9 10
8 9 10 11 12 13 14 15 10 11 12 13 14 15 16 17 18 19
16 17 18 19 20 21 22 20 21 22 23 24 25 26 27 28

E4 E5 E6 E7
Gray Gray

1 2
1
1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9
8 9 10 11 12 13 14 15 16 10 11 12 13 14 15 16 17 18 19 20 21
17 18 19 20 21 22 23 24 22 23 24 25 26 27 28 29 30 31

E8 E9 E10

1 2 3 4 5 6 1 2 3 4 5 6 7 1 2 3 4 5 6 7
7 8 9 10 11 12 13 14 15 16 8 9 10 11 12 13 14 15 16 17 8 9 10 11 12 13 14 15 16 17
17 18 19 20 21 22 23 24 25 26 27 18 19 20 21 22 23 24 25 18 19 20 21 22 23 24 25 26 27
28 29 30 31 32 33 34 35 26 27 28 29 30 31 28 29 30 31 32 33 34

E11 E12 F1 F2
Yellow Yellow

1 2 1 2
1 2 3 4 5 6 7 1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19 8 9 10 11 12 13 14 15 16 17
20 21 22 23 24 25 26 27 18 19 20 21 22 23 24 25 26 27
28 29 30 31 32 33 34 35 28 29 30 31 32

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 K
F3 F4 F5 F6 F7
Black Black Black

1 2 1 2 1 2
1 2 1 2

F8 F9 F10 F11 F12 F13

Gray Gray Black

3
1 2
1 2 1 2 1 2 3 5 1
4 5 1 2 2

F14 F15 F15 F16 F16 F17

(6 Speaker) (8 Speaker) (6 Speaker) (8 Speaker)

1 2 3
1 2 1 2 1 2 1 2 1
2 4 3 4 3 4 5

G1 G2 G3 H1 H2
Black Black Black

1 1 2
1 2 3 1 2 1 2

H3 H4 H5 H6 H7 H8
Black Black Black Black
1 1
1 2
1 2 1 2 3 4 1 2
5 6 7 8 9 10 3 4

H9 H10 H11 H12 H13 H14

Gray Black Black Gray Gray

1 2 1 2 1 2
3 4 2 1 1 2 1 2
3 4 3 4
3 3

H15 I1 I2 I3 I4
Gray Black Black Black

1 2 1 2 3 1 2 3 4 1 2 3 4 1 2 3 4
3 4 5 6

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 K CONNECTOR LIST
I5 I6 I7 I8 I9
Black Black Gray Black Gray

1 2 1 2 1 2 1 2
1 2 3 4

I10 J1 J2 J3
Blue

A A A A A
A A A A A A A A B B C C A A A
1 2 3 A A B CC C C C A A A A A
4 5 6

J4 J5 J6 J7
Black Black Blue

A B B C C
A A B B C C A A B B C C A A A B B B C C C C C A A B D D D C C
D D D E E E D D D E E E D D D D E E E E E E E

J8 J9 J10 J11
Black

A A A A A A A A A A B C C
A A A B B B C C C C C A A A A A A A A A A B B B B C C
A A A A A
D D D D E E E E E E E

J12 J13 J14 K1 K1

(1ZZ-FE) Dark Gray (2ZZ-GE) Black

1 2
A A A 1
A A B B C C A A B B C C
A A A A A
D D E E F F D D E E F F

L1 L2 L3 L4 M1 M2
Black Black

1 2 1 2 1 2 3 4
1 1
2 1 2 3 4 5 5 6 7 8 9 10

M3 N1 N2 O1 O2 O3
Black Black Gray

1 2 1 2
3 456 78 1 2
1 2 1 2 1 3 4
5 6

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 K
P1 P2 P3 P4
Gray Black Black Blue

1 2 3 4
1 1
5 6 7 8 9 10
1 2 3 4 5
6 7 8 9

P5 P6 P7 P8 P9 P10
Yellow Yellow

1 2 1 2
1 2
1 2 3 4 5 6 7 8 9 1 2 1 2
10 11 12 13 14 15 16 17 18

R1 R2 R3 R4 R5
Gray Blue Blue

1 2 3 4 1 2
5 6 7 8 9 10 3 4 5 6 1 10 1 2 3
2 3 4 5 6 7 8 9
1 2 11 12 13 14 15 16 17 18 19 20

R6 R7 R8 R9 R10 R11 R12

Black Black Black

1 1
1 2 1 2
3 4 3 4 1 1 1 2 3

5 6 5 6 2 2

R13 R14 R15 S1 S2

Black

1
2 1 2 1 1
4 3 4 3 1 2 3 4 5 6 7 8 9 10
6 5 6 5

S3 S4 S5 S6 S7
Yellow Yellow

1 2 3 4 5 6
1 2 3 4 5 6 7 7 8 9 1011121314
1 2 3 4 5 1 2 1 2 8 9 10 11 12 13 14 15 16

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 K CONNECTOR LIST
S8 S9 S10 S11
Yellow Yellow Black

1 2 1 2
1 2 3 4 3 4
3 4

3 4 5 6 7 8 9 10 11 12
1 2
13 14 15 16 17 18 19 20 21 22
23 24
25 26 27 28 29 30 31 32 33 34

T1 T1 T2 T3 T4
(1ZZ-FE) Black (2ZZ-GE) Black

1 2 3 1
1 2 3 4 5 6 1 2 1 2
2 3

U1 V1 V2 V3 V4
Black Black Blue Black

1 2 3 1 2
1 2
1 2 1 2

V5 V6 V7 V8 W1
Black Black Blue Blue Black

1 2 3 1 2 1 2 3
1 2 1 2

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 MEMO

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 L PART NUMBER OF CONNECTORS
Code Part Name Part Number Code Part Name Part Number
A1 A/C Condenser Fan Motor 90980-11410 C17 Cruise Control Clutch SW 90980-10906
A2 A/C Magnetic Clutch and Lock Sensor 90980-11016 C18 Cruise Control ECU 90980-11391
A/C Triple Pressure SW (A/C Dual and D1 Data Link Connector 3 90980-11665
A3 90980-10943
Single Pressure SW)
D2 Door Control Receiver 90980-11909
A6 ABS Speed Sensor Front LH
90980-11003 D3 Door Courtesy SW LH
A7 ABS Speed Sensor Front RH 90980-10871
D4 Door Courtesy SW RH
A8 A/C Evaporator Temp. Sensor 90980-11918
Door Lock Motor , Door Lock Detection SW
D5
A9 A/C SW 90980-11923 and Door Key Lock and Unlock SW LH
90980-11858
Airbag Squib (Front Passenger Airbag Door Lock Motor , Door Lock Detection SW
A12 D6
Assembly) 90980-11884
90980 11884 and Door Key Lock and Unlock SW RH
A13 Airbag Squib (Steering Wheel Pad) D7 Door Side Airbag Sensor LH
90980-11856
A14 Automatic Light Control Sensor 90980-11107 D8 Door Side Airbag Sensor RH
A15 ABS Speed Sensor Rear LH D9 Daytime Running Light Resistor 90980-10928
90980-11060
A16 ABS Speed Sensor Rear RH Electronically Controlled Transmission
E1 90980-11658
Solenoid
A17 Accelerator Pedal Position Sensor 90980-11144
E2 Engine Control Module 90980-11638
A18 Air Pump Motor 82824-20160
E3 Engine Control Module 90980-11637
A19 Air Pump Relay 90980-11288
E4 Engine Control Module 90980-11476
A20 Ambient Temp. Sensor 90980-11070
E5 Engine Control Module 90980-11421
A21 Auto Antenna Control Relay 90980-10797
E6 Engine Coolant Temp. Sensor 90980-11062
A22 Air Pump Pressure Sensor 90980-10845
E7 Oil Pressure SW (VVTL) 90980-11363
B1 Back-Up Light SW 90980-11051
E8 Engine Control Module 90980-12146
B2 Brake Fluid Level Warning SW 90980-11207
E9 Engine Control Module 90980-12142
B3 Blower Motor 90980-10214
E10 Engine Control Module 90980-12144
B4 Blower Resistor 90980-11136
E11 Engine Control Module 90980-12145
B5 Blower SW 90980-10877
E12 Engine Control Module 90980-12143
B6 Body ECU 90980-11877
F1 Front Airbag Sensor LH
B7 Body ECU 90980-11915 90980-11898
F2 Front Airbag Sensor RH
B8 Buckle SW LH
F3 Front Fog Light LH
B9 Buckle SW RH 90980-10795 90980-11003
F4 Front Fog Light RH
B10 Back Door Lock Motor
F5 Front Parking Light LH
C1 Camshaft Position Sensor 90980-10947 90980-11156
F6 Front Parking Light RH
C2 Camshaft Timing Oil Control Valve (VVL)
90980-11162 F7 Front Side Marker Light LH
C3 Camshaft Timing Oil Control Valve (VVT) 90980-11162
F8 Front Side Marker Light RH
C4 Crankshaft Position Sensor 90980-10947
F9 Front Turn Signal Light LH
C5 Cruise Control Actuator 90980-11150 90980-11019
F10 Front Turn Signal Light RH
C6 Center Airbag Sensor Assembly 90980-11872
F11 Front Wiper Motor 90980-11599
C7 Center Airbag Sensor Assembly 90980-11869
F12 Front Fog Light Relay 82660-20340
C8 Center Airbag Sensor Assembly 90980-11867
F13 Front Door Speaker LH
C9 Cigarette Lighter 90980-10795 90980-10935
F14 Front Door Speaker RH
Clock (Canada) 90980-11475
C10 Front Door Tweeter Speaker LH (6
Clock (USA) 90980-10789 90980-10915
Speaker)
C11 Clutch Start SW 90980-10825 F15
Front Door Tweeter Speaker LH (8
90980-10794
C12 Combination Meter 90980-11915 Speaker)
C13 Combination Meter 90980-11913 Front Door Tweeter Speaker RH (6
90980-10915
Speaker)
C14 Combination SW 90980-11594 F16
Front Door Tweeter Speaker RH (8
C15 Combination SW 90980-11672 90980-10794
Speaker)
C16 Combination SW 90980-11986

Note: Not all of the above part numbers of the connector are established for the supply.

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 L
Code Part Name Part Number Code Part Name Part Number
F17 Fuel Sender and Pump 90980-11077 L1 License Plate Light LH
90980-11148
G1 Generator 90980-09212 L2 License Plate Light RH
G2 Generator 90980-11349 L3 Luggage Compartment Light 90980-10121
G3 Glove Box Light and SW 90980-11098 L4 Luggage Compartment Light SW 90980-10871
H1 Headlight LH (High) 90980-11659 M1 Mass Air Flow Meter 90980-11317
H2 Headlight LH (Low) 90980-10481 M2 Moon Roof Control Relay and Motor 90980-10997
H3 Headlight RH (High) 90980-11659 M3 Moon Roof Control SW and Personal Light 90980-11533
H4 Headlight RH (Low) 90980-10481 N1 Noise Filter (Ignition System) 90980-11156
H5 Horn (High) N2 Noise Filter (Rear Window Defogger) 90980-10825
90980-10619
H6 Horn (Low) O1 O/D Direct Clutch Speed Sensor 90980-11156
H7 Hazard SW 90980-10801 O2 Oil Pressure SW 90980-11363
H8 Heated Oxygen Sensor (Bank 1 Sensor 1) 90980-10869 O3 O/D Main SW 90980-11011
H9 Heated Oxygen Sensor (Bank 1 Sensor 2) 90980-11028 P1 Park/Neutral Position SW 90980-11784
H10 High Mounted Stop Light 90980-10859 P2 Power Steering Oil Pressure SW 90980-11428
H11 Headlight Beam Level Control Actuator LH P3 Parking Brake SW 90980-10871
90980-11016
H12 Headlight Beam Level Control Actuator RH P4 Power Window Lock SW 90980-10997
H13 Headlight Control ECU LH P5 Power Window Master SW 90980-11973
90980-10869
H14 Headlight Control ECU RH P6 Personal Light (w/o Moon Roof) 90980-11148
H15 Headlight Beam Level Control SW 90980-10797 P7 Power Window Motor LH
90980-10860
I1 Idle Air Control Valve 90980-11145 P8 Power Window Motor RH
I2 Ignition Coil and Igniter No.1 P9 Pretensioner LH
90980-11862
I3 Ignition Coil and Igniter No.2 P10 Pretensioner RH
90980-11885
I4 Ignition Coil and Igniter No.3 R1 Radiator Fan Motor 90980-10928
I5 Ignition Coil and Igniter No.4 R2 Radio and Player 90980-10997
I6 Injector No.1 R3 Radio and Player 90980-10996
I7 Injector No.2 R4 Radio and Player 90980-12038
90980-11875
I8 Injector No.3 R5 Rheostat 90980-10908
I9 Injector No.4 R6 Rear Combination Light LH
90980-11011
I10 Ignition SW 90980-11778 R7 Rear Combination Light RH
J1 Junction Connector 90980-10803 R8 Rear Speaker LH
90980-10935
J2 Junction Connector 90980-11542 R9 Rear Speaker RH
J3 Junction Connector 90980-11686 R10 Rear Window Defogger 90980-10913
J4 Junction Connector R11 Rear Window Defogger 90980-10914
90980-11661
J5 Junction Connector R12 Rear Wiper Motor and Relay 90980-10908
J6 Junction Connector 90980-11915 R13 Remote Control Mirror LH
90980-11587
J7 Junction Connector 90980-11542 R14 Remote Control Mirror RH
J8 Junction Connector 90980-11915 R15 Remote Control Mirror SW 90980-11657
J9 Junction Connector 90980-11542 S1 Starter 90980-11400
J10 Junction Connector 90980-11686 S2 Starter 90980-09506
J11 Junction Connector 90980-11542 S3 Shift Lock Control ECU 90980-11909
J12 Junction Connector S4 Side Airbag Squib LH
90980-11661 90980-11864
J13 Junction Connector S5 Side Airbag Squib RH
J14 Junction Connector 90980-11686 S6 Stereo Component Amplifier 90980-10848
Knock Sensor (1ZZ-FE) 90980-11166 S7 Stereo Component Amplifier 90980-10807
K1
Knock Sensor (2ZZ-GE) 90980-11875

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 L PART NUMBER OF CONNECTORS
Code Part Name Part Number Code Part Name Part Number
S8 Stop Light SW 90980-11118
S9 Side Airbag Sensor LH
90980-11857
S10 Side Airbag Sensor RH
S11 Skid Control ECU with Actuator 90980-12020
Throttle Position Sensor (1ZZ-FE) 90980-11261
T1
Throttle Position Sensor (2ZZ-GE) 90980-11858
T2 Turn Signal Flasher Relay 82751-07010
T3 Tension Reducer Solenoid LH
90980-11369
T4 Tension Reducer Solenoid RH
U1 Unlock Warning SW 90980-10860
V1 Vehicle Speed Sensor (Combination Meter) 90980-11143
Vehicle Speed Sensor (Electronically
V2
Controlled Transmission) 90980-11156
90980 11156
V3 VSV (ACIS)
V4 VSV (Canister Closed Valve) 90980-11162
V5 VSV (EVAP) 90980-11156
V6 Vapor Pressure Sensor 90980-11143
V7 VSV (Pressure Switching Valve) 90980-11859
V8 VSV (Air Pump) 90980-11156
W1 Washer Motor 90980-10981

Note: Not all of the above part numbers of the connector are established for the supply.

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 L
Code Part Name Part Number Code Part Name Part Number

245
2004 CELICA (EWD538U)

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 M OVERALL ELECTRICAL WIRING DIAGRAM

246
2004 CELICA (EWD538U)

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 [A] : System Title [F] : Junction Block (The number in the circle is the
J/B No. and the connector code is shown beside
[B] : Indicates the wiring color.
it). Junction Blocks are shaded to clearly
Wire colors are indicated by an alphabetical code. separate them from other parts.
B = Black W = White BR = Brown

,,,,
L = Blue V = Violet SB = Sky Blue Example:
R = Red O = Orange LG = Light Green ,,,,
,,,,3C indicates
P = Pink Y = Yellow GR = Gray ,,,,
,,,,
that it is inside
Junction Block
G = Green
,,,,No.3
The first letter indicates the basic wire color and the ,,,,
second letter indicates the color of the stripe.
Example: L-Y

[G] : Indicates related system.

[H] : Indicates the wiring harness and wiring harness
connector. The wiring harness with male
L Y terminal is shown with arrows ( ).
2004 CELICA (EWD538U)

(Blue) (Yellow) Outside numerals are pin numbers.

[C] : The position of the parts is the same as shown in
the wiring diagram and wire routing.
[D] : Indicates the pin number of the connector.
The numbering system is different for female
and male connectors.
Female Male ( )
Example : Numbered in order Numbered in order
from upper left to from upper right to
lower right lower left [I] : ( ) is used to indicate different wiring and
connector, etc. when the vehicle model, engine
type, or specification is different.
[J] : Indicates a shielded cable.
Female Male

The numbering system for the overall wiring

diagram is the same as above
[K] : Indicates and located on ground point.
[E] : Indicates a Relay Block. No shading is used and
[L] : The same code occuring on the next page
only the Relay Block No. is shown to distinguish
indicates that the wire harness is continuous.
it from the J/B.
Example : Indicates Relay Block No.1
247

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 248

M OVERALL ELECTRICAL WIRING DIAGRAM

SYSTEM INDEX
SYSTEMS LOCATION SYSTEMS LOCATION
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-3 Ignition (2ZZ-GE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-3 Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3

Auto Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-3 Moon Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-2

Back-Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2 Multiplex Communication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

∗ Door Lock Control
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 ∗ Electronic Tension Reducer
∗ Interior Light
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
∗ Key Reminder
Clock (Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-4 ∗ Light Reminder Buzzer
∗ Power Window
Clock (USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-2 ∗ Seat Belt Warning
∗ Wireless Door Lock Control
2004 CELICA (EWD538U)

Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3

Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1~26-1
Cruise Control (1ZZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2
Radiator Fan and Condenser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-2
Cruise Control (2ZZ-GE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Radio and Player (Built-in Type Amplifier) . . . . . . . . . . . . . . . . . . . . 21-3
Electronically Controlled Transmission and A/T Indicator
(1ZZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Radio and Player (Separate Type Amplifier) . . . . . . . . . . . . . . . . . . . 22-2
Electronically Controlled Transmission and A/T Indicator Rear Window Defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-3
(2ZZ-GE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Rear Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-4
Engine Control (1ZZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-3
Engine Control (2ZZ-GE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Shift Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
Fog Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-3
Front Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Headlight Beam Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-3
Headlight (w/ HID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Headlight (w/o HID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 15-2
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-4

Ignition (1ZZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

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 1 CELICA ELECTRICAL WIRING DIAGRAM (Cont. next page)

P o w e r S o urc e M ultip lex C o mm u nica tio n S ys te m

1 2 3 4
L- B
A
L- Y
B
R
C
R- L
D
R- L
E
R- L

R- L
L- B

L- Y

L- R
R

5 IO 8 IO 11 IN 14 IN 16 IN 8 IK

<9- 4><10- 4>

System
See Headlight
System<12- 1>
See Taillight
ACC 3

<25- 3>
System
Defogger
Window
See Rear
5 1
W 1 AM1 IG1 2
5A TENS RDC
5A DEF RLY

GR

C C I10
IGNITION SW 1 IB

5 IK 12 IK
2 4 1 17 B 10 3 A 24 A 4 A
DEFB DEF TRLY DRL HRLY CLTS CLTE CLTB
2004 CELICA (EWD538U)

C D
5A BODY ECU- IG

3 1 B6 A , B7 B BODY ECU
20A FR P/W

20A FL P/W

7. 5A ACC B IG B E PRG RDA HF H T HU

25A 20A
IG1 ECU- 12 5 3 8 11 9 B 10 B 12 A 18 A 5 A 19 A
AM1 DOOR
RELAY ACC

2 5 2 2

R- B

P- B

R- L

P- L
LG
V
1 IA

2
B- R

L- R
IC 3 2 8 13 14 7

RECEIVER
DOOR CONTROL
D2
1 2E 7 2F PRG RDA HF H T EL HU HL

2 OFF

SW
CONTROL
LIGHT
B B
TAIL
120A 25A +B GND
ALT DCC 7. 5A 7. 5A HEAD
DOME MPX- B 5 1
LOW

DIMMER SW
1
W- B

2 6 HIGH
R

1 2A 13 IN 6 IK 3 IN 12 II FLASH
C15 16
W- B

COMBINATION SW
L- W

L- W
B- R

L- W
FL MAIN F
3. 0W L- W
G
W- B

W- B
CONNECTOR
JUNCTION
J14

CONNECTOR
JUNCTION
J3
A A
BATTERY
W- B

Instrument panel IF Luggage room BJ Cowl side IE

brace RH left panel LH

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 1 CELICA (Cont. next page)

* 1 : w/ Moon Roof
* 2 : w/o Moon Roof
M u ltip lex C o mm u nic ation S y ste m * 3 : 1ZZ- FE
* 4 : 2ZZ- GE

5 6 7 8
L- B L- B
A A
L- Y L- Y
B B
R R
C C
R- L R- L
D D
R- L R- L
E E

See Combination Meter

System<24- 7><24- 8>

1 1

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2 1
D3 D4
DOOR DOOR

R
U1 COURTESY COURTESY

R- Y
UNLOCK SW LH SW RH
WARNING SW

W- L
11 A 9 A 20 B 21 B 19 B 3 B 12 B 13 B 2 A
SG1 KSW DCTY PCTY PKB FU- FUA FU+ BLVL
B6 A , B7 B BODY ECU
LP LGCY UL3 LSWD ACTD ACT+ L2 ACT- UL2 LSWP BLTW SG4 PWS HORN L MPX1
10 A 22 B 25 A 21 A 13 A 9 6 7 22 A 20 A 18 B 4 B 1 A 14 A 17 A 16 A

R- W
P

G
GR
R- L

L- B

Y- B
Y- G

W- R

LG
L- R

Y- B
6 IB1
1 B 3 B
F D
6 IL 9 IF 7 IO 4 IO 5 IL 2 IL 8 IF L TX+
B A

R- W
METER

BR
BR

LG
Y- B
L- R
L- R

L- W
L- W
L- W

7 A (*1) A MPX+ MPX-

2004 CELICA (EWD538U)

<4- 7>
<13- 4>
COMBINATION

1 B (*2) 12 A 18 B
9 BA1 J12 A , J13 B 10 IA2 5 IA2 1 IA2 2 IA2 6 IA2 5 BA1 10 BA1 1 IH2 5 IH2 6 IH2 2 IH2 10 IH2
C12 A , C13 B

JUNCTION
M OVERALL ELECTRICAL WIRING DIAGRAM

From Horn Relay

Assembly<20- 3>

CONNECTOR

ON
OFF
B
G
From O/D Main SW

P6 B
M3 A
BR
BR

LG
LG
Y- B
Y- B

L- R
L- R
L- R

L- W
L- W
L- W
G- O

DOOR
LG- R

To Moon Roof Control

Relay and Motor<17- 3>

4 1 2 6 5 6 5 2 1 3
From Center Airbag Sensor

7 BB1 4 IE5 13 IE5

L3
2 5 BB1 6 BB1

PERSONAL LIGHT
PERSONAL LIGHT
2 A (*1)

LIGHT
2 B (*2) M M

LG
LUGGAGE
G- O

LG- R

1
1
L4
L- R

[MOON ROOF CONTROL SW]

L- W

10 B 6 A (*3)

COMPARTMENT
LUGGAGE

L- W
COMPARTMENT 2 1 18 E 29 E (*4)
M
1 IB1 LIGHT SW MPX1 MPX2
E8 E

D5 B10 D6

L- W
3 4
MODULE

DOOR LOCK MOTOR, BACK DOOR DOOR LOCK MOTOR,

L- W DOOR LOCK DETECTION SW LOCK MOTOR DOOR LOCK DETECTION SW
W- B

F
AND DOOR KEY LOCK AND AND DOOR KEY LOCK AND

W- B
L- W
E2 A , E3 B

UNLOCK SW LH UNLOCK SW RH 14 IH1

ENGINE CONTROL

G B
14
B W- B W- B W- B
IA1 F
J11
W- B

JUNCTION A A
J3 A W- B J10
CONNECTOR
JUNCTION JUNCTION
CONNECTOR CONNECTOR
Cowl side IE Instrument IH
panel LH panel brace RH
 1 CELICA (Cont’ d)

M u ltip le x C o m mu nic ation S y s tem

9 10 11 12
L- B
A
L- Y
B
R
C
R- L
D
R- L
E

R- L

R- L
SOLENOID LH
TENSION REDUCER
T3

SOLENOID RH
TENSION REDUCER
T4
1 1
2004 CELICA (EWD538U)

B6 A , B7 B BODY ECU
L1 UL1 P/W SG3 PBKL SG2 DBKL
2 2
15 B 16 B 11 B 2 B 14 B 1 B 7 B
V- W

W- L
P- B

Y- B

L- Y
W

R- W
P5

R
5 6 7 POWER WINDOW MASTER SW 1 2 1 2
BUCKLE SW RH
B9

L UL KOF
BUCKLE SW LH
B8

W/L E DU DD PU PD +B BDR IG
16 17 9 18 1 10 2 11 12
W- R

W- B

3 3
R- B

L- B

L- Y
LG
G

R
L

R- W

R
3 IF1 1 IO 8 IF1 9 IF1 7 IF1 2 IF1
W- R

R- B
LG

12 II
G

7
LOCK SW
POWER WINDOW
P4

8 IA2 7 IA2 8 IH2 7 IH2

R- B
LG
G

10
W- B

1 2 2 1

W- B
F

M M

Instrument panel IF P7 P8
brace RH POWER WINDOW POWER WINDOW
MOTOR LH MOTOR RH

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 2 CELICA (Cont. next page)

P o w e r S o urc e E ng in e C o ntr ol (2 Z Z - G E )

1 2 3 4 P
A
R- Y
B
B- O(M/T)
C
B- O
D
B- O
E
W- L
ACC F
B- W
G

P
B- W

L- R
L- R

R- Y
B- O
(M/T)
W 1 AM1 IG1 2 H
B- W
I
7 IF 11 IM 10 II 8 IK B- W
J
B- W

B- O
K
B- R
6 5 L
B- R
C M
B- R

J6
B- R 5 AM2 IG2 6 B- O C N

ST2

JUNCTION

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C

7. 5A OBD
CONNECTOR

5A ECU- IG
5 IK 11 IK

5A WARNING
A A
I10
IGNITION SW

B- O
3 1

4 IK

25A AM1

IG1 RELAY
5 2

6 IC
12 II 1 IA 9 IC
B- R
B- R
B- R
B- R

W- L

B- O
B- O
B- W
B- W
B- W
B- W
B- W
B- W

4 2

B- R
B- R
A19

1 2E 16 2F 14 2F 15 2F 8 2F 14 2C 15 2C 16 2C 18 2F 19 2F 4 2F 4 2C 3 2C 1

W- B
2
50A 3 1
AIR PUMP RELAY

A- AMP
10A 10A
15A 20A
IG2 EFI EFI EFI
B

NO. 2 NO. 1
GR- R

120A ALT
7. 5A AM2

2004 CELICA (EWD538U)

1 1 EC1
1 7 EA2
5 1 1 5 5 1
M OVERALL ELECTRICAL WIRING DIAGRAM

IG2 EFI C/OPN

B

RELAY RELAY RELAY

10A ETCS
A18

2
3 2 2 3 3 2 2
B- R M
1 1A 1
1
AIR PUMP MOTOR

1 2A 10 2C 9 2C 8 2C 7 2C 4 2G 7 2H 12 2F 1 2I 11 2F 10 2F
W

GR- R
O
W- R
G- R P
G- R

B
B
B
B
B

Q
GR

FL MAIN
L- B

B- R
W- B
W- B

GR
3. 0W R
B
S
B
T
B
U
B
V

B
BATTERY J14
JUNCTION F17
CONNECTOR FUEL PUMP 11
A 4
W

W- B 5 L- B L- B

W- B
W- B
W- B

M II2

Instrument panel IF Front left EM EB Front left BJ Luggage room EO Engine mount EN Air pump bracket
brace RH fender fender left brace RH
 2 CELICA (Cont. next page)

E n gine C on trol (2 Z Z - G E )
* 2 : MALFUNCTION

P
5 6 7 8 B- O(M/T)
A A
R- Y
B BR
B- O(M/T)
C B
B- O
D B- W
B- O
E C
W- L
F B- W
B- W
G D
B- W
H BR
B- W
I E
B- W
J
B- W
K
B- R
L
B- R
M
B- R
N

B- R
B- W

B- W

B- W

B- W

B- W
B- R

B- O
B- W 1 5
+B E2

FLOW METER
MASS AIR
M1
1 1 2 1 3 1

STOP LIGHT SW
S8
Closed Valve)
VSV (Canister
V4

VSV(EVAP)
V5
5 IB 10 IB 19 IN

VSV(ACIS)
V3

Switching Valve)
VSV(Pressure
V7
(Air Pump)
VSV
V8

E2G THA VC
2 4 3
21 2 2 1 2 4 2
G G

G- O
R- Y

R- Y
IE3
BR
P

G- W
Y- G

Y- R
16 5 15
2004 CELICA (EWD538U)

V- W

G- Y

R- L
GR

22 A D1 9 IE3 10 II2
BAT SG WFSE DATA LINK
COMBINATION METER
C12 A , C13 B

CG TS A/B TC SIL CONNECTOR 3

W- L

G- O
B- O

B- R
CRUISE

R- Y
4 12 11 13 7
P- B
(*2)

W
W- R

4 IF 3 IF
19 F 33 G 9 F 3 F 1 F 12 I 11 I 15 G 12 E 4 F 32 H 20 G 24 H
16 A 7 B WFSE AIRV IGSW BATT +B CCV EVP ACLV ST1- TBP EVG THA VG

E 8 E , E 9 F , E10 G , E11 H , E12 I ENGINE CONTROL MODULE

with Actuator<19- 2>
From Skid Control ECU

9 IH 2 IG 8 IB 2 IH 5 IG 3 IB

SIL TC W PI AIRP +BM FC MREL #40 #20 #30 #10 MOPS PSW OSW
Y- G

R- B

W 18 F 20 F 11 F 13 E 3 H 6 E 10 F 8 F 4 G 2 G 3 G 1 G 22 I 10 I 8 I
B- Y

P- B

P- B

W
W- B

GR- R

W- R

G- R
R- B

Y- G
P- B

P- B

L- O

L- R

Y- B
L- B
GR

GR
W

P
L

From Center From Skid

PRESSURE SW
POWER STEERING OIL
P2
OIL PRESSURE SW
O2

(VVTL)
OIL PRESSURE SW
E7
Airbag Sensor Control ECU 1 1 1 1 1 1 1
INJECTOR NO. 4
I9

INJECTOR NO. 2
I7

INJECTOR NO. 3
I8

INJECTOR NO. 1
I6
Assembly<20- 2> with Actuator
12 IE5 11 IE3
<19- 2>
Y- G

2 2 2 2

GR- R
O
W- R
P
B

G- R
Q
GR
R
B
S
B
T
B
U
B
V

A
J3
JUNCTION
CONNECTOR
IE Cowl side
panel LH

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 M OVERALL ELECTRICAL WIRING DIAGRAM

(Cont. next page)

G
C

H
A

J
I
B- O(M/T)

(*1)

(*1)

(*1)
* 1 : Shielded

BR

BR

BR
B- W

B- W
BR
(*1)

(*1) (*1) B

KNK1
2 EA1

2 H

1
K1
KNOCK SENSOR
BR B B

OX1A

OX1A
12

8 EA1
E1

23 H

EKNK
W

1 H
(*1)

(*1)

(*1)
B- W Y- R Y- R

HT1A
5 EA1
HT
+B

4 H
2

1
H8

A
HEATED OXYGEN
SENSOR BR BR

E1
1 I
(Bank 1 Sensor 1)

A
A
(*1)

MPX2
BR
See Multiplex

29 E

A
Communication BR
System

A
<1- 8> (*1)

MPX1
BR

18 E

A
J1
JUNCTION
See Charging System CONNECTOR

RL
21 I
<8- 2>
(*1)

L L

G22+
HP
1 E

27 I

2
C1
CAMSHAFT
See Air Conditioning

LCKI
POSITION

23 I
System<26- 2> SENSOR
11

B- W

ACMG
2 E

W W

NE-
34 G
TACH

To Combination BR- W

1
E n gine C on trol (2 Z Z - G E )

5 F

ENGINE CONTROL MODULE

Meter<24- 2> C4
CRANKSHAFT
POSITION
BR BR SENSOR
E2
28 G

O
NE+
27 G

E6 (*1)
ENGINE COOLANT
BR

TEMP. SENSOR
BR G W- R
THW

From Combination
SPD
19 G

17 E

Meter<24- 3>
1

2
BR

E 8 E , E 9 F , E10 G , E11 H , E12 I

G- W
STP

From Stop Light SW<13- 3>

19 E

BR
7 EA1

BR

P- G
F/PS

From Center Airbag Sensor

14 F

BR Assembly<20- 3>
4 II2
VAPOR PRESSURE

L- Y L- Y From FAN NO. 1 Relay,

FAN

2 EA3
14 G
PTNK

L- B L- B FAN NO. 2 Relay<25- 2>

10

II2

21 F
SENSOR

12
BR

L- W L- W From FAN NO. 3 Relay

3 EA3
CF
V6

5 G

R R- B <25- 3>
8 II2
3

L L
EA1

From ” ST” Fuse

STA

11 EA3
11
AIR PUMP PRESSURE

9 H

<6- 2>

LG LG B- Y
IGF
AIP
29 G

9 G 10 G 11 G 24 G
2
SENSOR

R- Y
IGT4
A22

R- B

BR R- B G- R From Ignition Coil and

IGT3

Igniters<7- 3><7- 4>

1

GR- R
IGT2

R- B R- B R- B
VC

VC
18 G

R- G
IGT1
5

8 G
THROTTLE POSITION SENSOR

B- W W- B W- B
VTA

VTA

7 EA3
EC

EB
21 G

30 I
6
BR

C3
CAMSHAFT TIMING
Front left

B- L OIL CONTROL VALVE(VVT)

VTA2

VTA2

fender
31 G
9

W G- O
OCV+ OCV-
4

(*1)
15 I

W G- O
M-

M-
2 I

16 I
1

C2
T1

CAMSHAFT TIMING
BR B OIL CONTROL VALVE(VVL)
M+

M+
E2
2 CELICA

OCVL+ OCVL-
3 I

L- B L- W
3

2
B- O(M/T)

13 I

1
B- W

B- W
BR

BR

L- W
GE01
17 I

14 I
C

D
A

2004 CELICA (EWD538U)

Downloaded from www.Manualslib.com manuals search engine

 2 CELICA (Cont’ d)

E n gine C on tro l (2 Z Z - G E ) C ru is e C on trol (2 Z Z - G E )

* 1 : Shielded

B- O(M/T) 13 14 15 16
A
BR 11 13 3
B BR BR
B- W IE5 2F 2B
C B- Y
26
B- W BR (M/T)

(M/T)
B- O
D 2F
25
B- W

BR
2F
1 IC1 7 IE3 9 2F
2 4
(Bank 1 Sensor 2)
SENSOR
HEATED OXYGEN
H9

+B E1
(M/T)
B- O

20 2C
HT2 OX1B
(M/T)
B- Y
1

(M/T)
B- W
1 3
C17
CRUISE CONTROL
Y- G

(*1)
R

CLUTCH SW
2 IC1 18 2C
2

10 EA3 9 EA3 8 EA3 3 2F

(M/T)
L- W
(*1)

B- Y
2004 CELICA (EWD538U)

(M/T)
R

(*1)
Y- G

(*1)
E

6 I 29 H 10 E
HT1B OX1B D

E 8 E , E 9 F , E10 G , E11 H , E12 I ENGINE CONTROL MODULE

(*1)

(*1)

BR
EPA2 VPA2 VCP2 EPA VPA VCPA E02 E01 E03 ME01 CCS
29 F 23 F 27 F 28 F 22 F 26 F 6 G 7 G 7 I 4 I 24 E
BR

3
ECC
W- G
W- G

W- R
W- B

W- B

CRUISE
LG- R

L- W
L- O

L- R

L- Y

22 IE3
L

[COMB. SW]
CRUISE CONTROL SW
C16

10 IE3
RES/ACC
BR

1 2 4 3 5 6
SET/COAST
W- G

6 EA3

A17 CANCEL
BR

ACCELERATOR PEDAL POSITION SENSOR CCS 2

(*1)
F
(*1)
G
BR
H
BR
I
W- B

BR
J W- B

Cylinder head ED EC Cylinder head

cover LH cover LH

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 MEMO

2004 CELICA (EWD538U)

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 3 CELICA (Cont. next page)

P o w e r S o urc e E ng in e C on trol (1 Z Z - F E )

1 2 3 4
BR
A
B- O
B
W
R- Y

L- R

L- R

C
P

ACC B- W
D
7 IF 11 IM 8 IK W 1 AM1 IG1 2 B- W
E
B- W
6 F
B- W
5A WARNING

G
7. 5A OBD

B- R 5 AM2 IG2 6 B- W
H
5 IK 11 IK ST2 B- R
B- O

I
A
B- R
3 1 J
I10
B- R
25A AM1
IG1 RELAY

IGNITION SW 4 IK K
W- R From Skid Control ECU

R- Y
with Actuator<19- 2>
B- Y From Center Airbag
5 2

BR
P
Sensor Assembly<20- 2>
2004 CELICA (EWD538U)

6 IC
22 A 16 5 12 11

LAMP[COMB. METER]
MALFUNCTION INDICATOR
C12 A , C13 B
12 II 1 IA 9 IC D1
BAT SG TS A/B
B- W

B- W

B- W

B- W

B- W
B- O

B- O

B- R

B- R

B- R
DATA LINK
W
B- R

B- R

CG TC SIL CONNECTOR 3
1 2E 16 2F 14 2F 15 2F 8 2F 14 2C 15 2C 16 2C 18 2F 19 2F 4 2F 4 2C 3 2C 4 13 7

P- B

W
7 B
W- B

4 IF 3 IF
2
7. 5A AM2
120A ALT

10A 10A
15A 20A 9 II 9 IH 2 IG 8 IB 2 IH 5 IG 3 IB
EFI EFI

R- B
IG2 EFI
NO. 2 NO. 1
W

W- B
1

P- B

P- B

P- B

W
5 1 1 5 5 1

P- B
IG2 EFI C/OPN

<18- 4>
Control ECU
From Cruise
RELAY RELAY RELAY

<20- 2>
Assembly
Sensor
Airbag
From Center

<19- 3>
Actuator
ECU with
Control
Skid
From
3 2 2 3 3 2
W
B- R L
11 2F 10 2F P- B
M
1 2A 10 2C 9 2C 8 2C 7 2C 4 2G 7 2H 12 2F F17 R- B
FUEL PUMP N
11
W- B 5 4 L- B L- B G- R G- R
W- B

W- B
B- R

L- B

M II2 O
B

FL MAIN L- B
3. 0W P
B
Q
B
R
B
S
BATTERY B
T
A A
W- B

W- B

W- B

J14 J3
JUNCTION JUNCTION
CONNECTOR CONNECTOR
Instrument panel IF Front left EM EB Front left BJ Luggage room IE Cowl side
brace RH fender fender left panel LH

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 M OVERALL ELECTRICAL WIRING DIAGRAM

(Cont. next page)

D
A

MPX1 MPX2 TACH

To Combination BR- W W- R From Combination

SPD
27 B

22 B
Meter<24- 2> Meter<24- 3>

W- B
B- W

B- W
BR
B

OD1
See Multiplex

6 A

1 B
Communication From Cruise Control ECU
System <18- 3><18- 4>
L- W

IDLO
<1- 8>

10 C 10 B

10 A
See Charging System G- W

STP
RL
From Stop Light SW<13- 3>

6 B
<8- 2>

P From Center Airbag Sensor

F/PS
PRE
18 B

8 B
8

Assembly<20- 3>

See Air Conditioning

ACMG LCKI
18 C 12 A 28 B
System<26- 2> L- Y From FAN NO. 1 Relay,

FAN
4 B
FAN NO. 2 Relay<25- 2>

L- W From FAN NO. 3 Relay

CF
3 B
<25- 3>
BR BR

E2
E6 L From ” ST” Fuse

STA
10 D 11 D 12 D 13 D 25 D 11 B
ENGINE COOLANT <6- 2>
BR

TEMP. SENSOR
BR G B- Y

THW

IGF
14 C
1

2
BR

BR R- Y

IGT4
7 EA1

BR
G- R From Ignition Coil and

IGT3
BR Igniters<6- 3><6- 4>

II2
VAPOR PRESSURE

1
R- W

IGT2
4
L- B L- B

PTNK
12 II2

4 A
R- B

IGT1
SENSOR

2
BR

V6

R R W- B W- B

EC

EB
II2

12 B
3

C3
8
7

CAMSHAFT TIMING
EA1

Front left
11
THROTTLE

OIL CONTROL VALVE(VVT)

fender
POSITION
SENSOR

W G- O
VTA

OCV+ OCV-
23 D
B- W
VTA

1
23 C
T1

G- O
R

24 D
VC
E n gine C on tro l (1 Z Z - F E )

E2

BR R R
ENGINE CONTROL MODULE
VC
2 C
2

1
BR

M1 P2
MASS AIR POWER STEERING OIL
FLOW METER PRESSURE SW
G- W P
VG

VG

PS
E2

11 C

28 D
5

1
L- R
THA

THA
1 C 22 C

O2
4

OIL PRESSURE SW
MOPS

B- R Y- G Y- B
EVG
E2G
+B

E2 A , E3 B , E4 C , E5 D

22 D
1

1
CONTROL
IDLE AIR

W- B I6
VALVE

INJECTOR NO. 1
3

R B
I1

# 10
1 D

B- W
RSO

2
18 D
B- R

I8
6

V7 INJECTOR NO. 3
VSV(Pressure R- W B
#30
3 D

Switching Valve)
1

G- O G- O
TBP
10 II2

23 B
B- W

I7
INJECTOR NO. 2
B- W R- L B
#20
10 IB

2 D

2
B- W

B- W I9
19 IN
5 IB

INJECTOR NO. 4
R- B B
#40
4 D

V3
VSV(ACIS)
B- W R- L R- L
VSV
13 EA1

9 B

MREL

L- B
1

21 B

V5
VSV(EVAP)
B- W G- O
EVP1
4 C

G- R
2

FC
3 A

V4
VSV (Canister
Closed Valve)
B- W V- W
CCV
17 D

R- B
1

12 IE5
W
15 A
5

B- R
+B
16 A

P- B
TC
5 B

W
IGSW BATT
1 A
3 CELICA

B- O W
SIL
8 A

11 A
B- W

B- W

B- W

B- W

B- W
B- O

G- R
B- R

B- R

B- R

P- B

R- B

L- B
BR

B
M
G

Q
C

R
A

S
F

T
L
J
I

2004 CELICA (EWD538U)

Downloaded from www.Manualslib.com manuals search engine

 3 CELICA (Cont’ d)

E n gine C o ntro l (1 Z Z - F E )
* 1 : Shielded

9 W- B 10 11 12
BR 11 13 3
A BR BR
B- W IE5 2F 2B
B
26
B- W BR
C 2F
W- B 25
B- W

B- W

D
BR

BR
2F
2 4 2 4
(Bank 1 Sensor 1)
SENSOR
HEATED OXYGEN
H8

(Bank 1 Sensor 2)
SENSOR
HEATED OXYGEN
H9

+B E1 +B E1
27 2F

HT OX1A HT2 OX1B

1 3 1 3
BR
Y- R

(*1)

(*1)
W
B

5 EA1 8 EA1 2 EA1

2004 CELICA (EWD538U)

Y- R

Y- G
(*1)

W
B

3 C 12 C 16 B 25 B
HT1A OX1A HT1B OX1B

E2 A , E3 B , E4 C , E5 D ENGINE CONTROL MODULE

W- B
(*1)

BR
NE+ NE- G2 KNK1 E1 E02 E03 E01
16 C 24 C 15 C 27 D 17 C 31 D 7 A 21 D
L
W
O

W- B

W- B

W- B
BR
(*1)
W

1 EB1 1 EA1
B- W

(*1)
(*1)

L
W

(*1)

(*1)

(*1)

BR
W

W- B
CONNECTOR
JUNCTION
J1

CONNECTOR
JUNCTION
J2

A A A A A
2 1 1 A W- B
KNOCK SENSOR
K1
SENSOR
POSITION
CRANKSHAFT
C4

SENSOR
POSITION
CAMSHAFT
C1

A A A A
(*1)
1 2
BR

BR

W- B
W- B

W- B

Cylinder head ED EC Cylinder head

cover LH cover LH

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 4 CELICA (Cont. next page)

P ow e r S o urc e E le c tron ic a lly C on tro lled T ran s mis sion a nd A /T Ind ic a tor (2 Z Z - G E )

1 2 3 4
R- Y
A
6 19
R- L R- L
2F 2C P1
A/T INDICATOR SW

R- L

R- Y
3 [PARK/NEUTRAL POSITION SW]
11 IM 7 IB RB
<1- 8>

6 6 ACC

L- R
V2

W 1 AM1 IG1 2 PL RL NL DL 2L LL
See Multiplex

O1

2 2
1 2 5 7 4 8
L- W

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L- R

5A BK/UP LP

5A WARNING
Communication System

Transmission)

R- B
A C
8 IK 5 IK I10

P
SPEED SENSOR

P- L
IGNITION SW 6 2C 17 2C

Y- B

L- O
1 1
(Electronically Controlled
O/D DIRECT CLUTCH

4 EA3 5 EA3 12 EA3 13 EA3

VEHICLE SPEED SENSOR

3 1

IG1 22 2F 3 2F
25A
RELAY
AM1
P- B

B- R

W- L
G- O

GR
P- L

R- B
Y- B

L- O

B- R
W- L
L- W

5 2
1 F 8 F 3 F 6 F 11 E 7 F 9 E 8 E 10 E 27 H 35 H 26 H 34 H 18 E 29 E
+B MREL BATT P R N 2 L D NT+ NT- NC+ NC- MPX1 MPX2
12 II 1 IA
E 8 E , E 9 F , E10 G , E11 H , E12 I ENGINE CONTROL MODULE

GR

B- R
B- R

W- L
SPD STP EVG THA VG VC VTA VTA2 THW TC E2 THO SLT+ SLT- SL1+ SL1- SL2+ SL2- DSL S4

W- B
17 E 19 E 32 H 20 G 24 H 18 G 21 G 31 G 19 G 20 F 28 G 30 G 17 G 16 G 19 H 18 H 17 H 16 H 11 H 13 H
1 2E 8 2F 12 2F 4 2F

2 2 5
V
Y

BR
Y- L
P- L

Y- G
G- R

GR- L
BR- Y

2004 CELICA (EWD538U)

20A EFI
EFI RELAY

120A ALT
1 3

10A EFI NO. 1

M OVERALL ELECTRICAL WIRING DIAGRAM

1 2 7 5 10 4 9 3 8
1 2A 7 2H 4 2G
THO SLT+ SLT- SL1+ SL1- S2 SL2- DSL S4

B- R
B
Y
R

O
O
G
G

W
BR

FL MAIN
3. 0W
See Engine Control System
<2- 6><2- 8><2- 9><2- 10>
O

BATTERY
E2

W- B
W- B
E1

W- B
6
ELECTRONICALLY CONTROLLED
BR

TRANSMISSION SOLENOID
IF Instrument panel EB Front EM Front
brace RH left left
fender fender
 4 CELICA(Cont’ d)

E le ctro n ic ally C o n tr olle d T ra ns m is s io n an d A /T In d ic ato r (2 Z Z - G E )

5 6 7 8
R- Y
A
BR- Y

12 IM
L- R

P- L

3 IF2
5 6
BR- Y

SFTU SFTD
12 IB 3 II2 P- B
[COMB. SW]
SHIFT SW
TRANSMISSION
C16
RIGHT- DOWN
LEFT- DOWN
RIGHT- UP
LEFT- UP
P- L

L- R

5 3
O/D MAIN SW

O/D MAIN SW
O3
MAIN SW
E- SHIFT
BR- Y

BR- R

17 IE3 6 IE3 ECC

3

BR- Y
P- B

R- Y
6 4 C12 A , C13 B
P- L

L- R

1 A 13 B 22 A COMBINATION METER
W- R
2004 CELICA (EWD538U)

21 E 22 E 7 E 16 F
SFTD SFTU ODLP ODMS

A/T OIL TEMP.

SPORTS A/T 1

SPORTS A/T 2

SPORTS A/T 3

SPORTS A/T 4
E 8 E , E 9 F , E10 G , E11 H , E12 I ENGINE CONTROL MODULE
<1- 8>
To Body ECU

EC E1 E02 E01 E03 ME01

M
30 I 1 I 6 G 7 G 7 I 4 I
W- G

W- R
W- B

W- B

W- B
BR

W- B

LCD DISPLAY
CONNECTOR
JUNCTION
J1

A
A
4 IN
7 EA3 A
BR

7 A 19 A
12 II 20 IM
BR

W- B
BR

6 EA3
W- B

22 IE3
W- G
W- B

W- B

W- B

W- R
BR

BR

W- B
W- B

Front left EB Cylinder head ED EC Cylinder IF Instrument panel IH Cowl side

fender cover LH head cover brace RH panel RH
LH

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 5 CELICA (Cont. next page)

P ow e r S o urc e E lec tro nica lly C o ntro lled T ran s mis s io n a n d A /T In dica tor (1 Z Z - F E )

1 2 3 4
R- Y
A
6 19
R- L R- L
2F 2C P1
A/T INDICATOR SW

R- L

R- Y
3 [PARK/NEUTRAL POSITION SW]
11 IM 7 IB RB
From Cruise
Control ECU

6 6 ACC

L- R
<18- 3>
<18- 3><18- 4>

To Cruise

W 1 AM1 IG1 2 PL RL NL DL 2L LL
Control ECU

1 2 5 7 4 8
L- W

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L- R

5A BK/UP LP

5A WARNING
R- B
A C
B- W

8 IK 5 IK I10
IGNITION SW 6 2C 17 2C 18 2C

3 1
B

L- W

IG1 22 2F 3 2F
25A
RELAY
AM1

W
P- L

L- B
L- Y

R- B
Y- B

B- R
B- O

5 2
16 A 21 B 1 A 20 C 2 B 8 C 19 C 9 C 24 B 10 A 1 B
+B MREL BATT P R N 2 L D IDLO OD1
12 II 1 IA
E2 A , E3 B , E4 C , E5 D ENGINE CONTROL MODULE

W
L- B

B- R
B- R
SPD STP EVG THA VG VC VTA THW TC E2 THO SLT+ SLT- S1 ST SL S2

W- B
22 B 6 B 1 C 22 C 11 C 2 C 23 C 14 C 5 B 18 C 13 C 6 D 5 D 8 D 29 D 19 D 20 D
1 2E 8 2F 12 2F 4 2F

2 2 5 J2
JUNCTION
Y

BR
Y- R
Y- G
G- W

CONNECTOR
GR- L
BR- Y
BR- W

2004 CELICA (EWD538U)

B

20A EFI
EFI RELAY

120A ALT
1 3 B

10A EFI NO. 1

M OVERALL ELECTRICAL WIRING DIAGRAM

1
Y
Y

1 3 8 5 2 4 10
1 2A 7 2H 4 2G
OT SLT+ SLT- S1 ST SL S2

B- R
Y
B

O
G
W
LG

GR

FL MAIN
3. 0W
<3- 5><3- 6><3- 7><3- 8>
See Engine Control System
To Cruise

BATTERY
Control ECU<18- 4>

E2

W- B
W- B
E1

W- B
6
ELECTRONICALLY CONTROLLED
BR

TRANSMISSION SOLENOID
IF Instrument panel EB Front EM Front
brace RH left left
fender fender
 5 CELICA(Cont’ d)

E le c tron ic a lly C on trolled T ra n sm iss ion a nd A /T Ind ic a to r (1 Z Z - F E )

5 6 7 8
R- Y
A

BR- Y
<1- 8>
Communication System
See Multiplex
(Electronically Controlled
VEHICLE SPEED SENSOR
V2
Transmission)

12 IM
2

12 IB 3 II2
1
BR- Y

BR- Y

BR- Y

BR- Y
W- L

R- Y
B
2004 CELICA (EWD538U)

16 D 15 D 10 B 6 A 19 B 5 A 5 13 B 22 A
NT+ NT- MPX1 MPX2 ODLP ODMS
O/D MAIN SW

O/D MAIN SW
O3

E2 A , E3 B , E4 C , E5 D ENGINE CONTROL MODULE

EC E1 E02 E01 E03

12 B 17 C 31 D 21 D 7 A

6
LCD DISPLAY
W- B

W- B

W- B

W- B
BR

W- B

4 IN
CONNECTOR
JUNCTION
J1

CONNECTOR
JUNCTION
J2

A A
7 A
12 II C12 A , C13 B
COMBINATION METER
A A
W- B

W- B

BR

1 EA1
W- B

W- B

W- B
BR

W- B

Front left EB Cylinder head ED EC Cylinder IF Instrument panel IH Cowl side

fender cover LH head cover brace RH panel RH
LH

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 M OVERALL ELECTRICAL WIRING DIAGRAM
B- Y B- Y

32 2C
I5
IGNITION COIL AND
IGNITER NO. 4
B- Y R- Y R- Y

12 2C

3
B W- B

26 2C

4
I4
4

IGNITION COIL AND

To Engine Control Module

IGNITER NO. 3
B- Y G- R G- R

13 2C

<3- 7><3- 8>

B W- B

24 2C

4
I3
IGNITION COIL AND
Ign ition (1 Z Z - F E )

IGNITER NO. 2
B- Y R- W R- W

30 2C

3
B W- B

25 2C

4
I2
IGNITION COIL AND
IGNITER NO. 1
B- Y R- B R- B
31 2C

3
B W- B

Cylinder head
23 2C

cover LH
W- B

W- B

W- B

W- B
N1
3

NOISE FILTER
(Ignition System)

C
B W- B W- B

EC
11 2C
RELAY

C
1

J2
IG2

JUNCTION

fender
CONNECTOR

Front
left
5

W- B W- B

EM
4 2G
14 2F

2
B- O

W- B W- B
7 2H

EB

fender
Front
left
W- B
(A/T)

B- W B- W W- B W- B
1 IE4

3 IC1

6 IC1

IE
(M/T) (M/T)
1

A
IC
6

C11

CONNECTOR
Cowl side
panel LH
CLUTCH

JUNCTION
START SW

J3
2

IK
4

B
S tarting

(A/T)
9
PARK/NEUTRAL

W- B
POSITION SW

(A/T)
6
B- W

N
P

L To Engine Control
P1

Module<2- 10><3- 8>

W- B
4 EA1

14 EA1

(M/T)

ST RELAY
B- O

S1 A , S2 B

B- W B- W W- B
1 IE1

1
1

STARTER

B L
3 2H

20 2F
1

1
5

3
IG2 6

ST2 4

7. 5A ST
IGNITION SW

B
1 2B

1 A
L

40A MAIN
B
1
I10
5 AM2
P ow er S ou rc e

4 2H

B- R
2

1
1

FL MAIN

BATTERY
3. 0W

7. 5A AM2
B- R

B- R B- R
1 2A
16 2F
9 IC
11 IK
6 CELICA

15A IG2

2004 CELICA (EWD538U)

Downloaded from www.Manualslib.com manuals search engine

 7 CELICA

P ow er S ou rc e Ign ition (2 Z Z - G E )

1 2 3 4

4 6
B- R 5 AM2 IG2 6 B- O C C B- O B- O
IK IC
ST2
J6
JUNCTION
11 IK I10 CONNECTOR 14 2F
IGNITION SW
1 5

9 IC IG2
RELAY

2 3
B- R

7 2H 4 2G 11 2C 23 2C 31 2C 25 2C 30 2C 24 2C 13 2C 26 2C 12 2C 32 2C
16 2F
W- B

W- B

B- Y

B- Y

B- Y

B- Y

B- Y
B

B
2004 CELICA (EWD538U)

7. 5A AM2
15A IG2

1 1 2 1 2 1 2 1 2
(Ignition System)
NOISE FILTER
N1

IGNITER NO. 1
IGNITION COIL AND
I2

IGNITER NO. 2
IGNITION COIL AND
I3

IGNITER NO. 3
IGNITION COIL AND
I4

IGNITER NO. 4
IGNITION COIL AND
I5
2

1 2A
W- B

4 3 4 3 4 3 4 3

GR- R
W- B

W- B

W- B

W- B
R- G

G- R
B- R

R- Y
FL MAIN W- B W- B W- B
3. 0W
GR- R
R- G

G- R

R- Y

B- Y
BATTERY

W- B

W- B

W- B

To Engine Control Module

<2- 9><2- 10>

Front EB EM Front EC Cylinder head

left left cover LH
fender fender

Downloaded from www.Manualslib.com manuals search engine

 8 CELICA

P o w e r S o urc e C h ar ging F o g L ig ht

1 2 3 4

R- W
9 IE4
ACC

W 1 AM1 IG1 2 L- R

R- W
A

L- R
R- Y
J5
JUNCTION

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20 IF 5 IK 13 IB CONNECTOR
I10 A
IGNITION SW
6
R- W

To Combination R- W
L- R

8
R- W

L- R Meter<9- 3><10- 3>

5A WARNING
IK
A
3 1 1 5

F12

R- Y
FRONT FOG
LIGHT RELAY

25A AM1

15A FR FOG
IG1 RELAY
5 2 2 3
J7

W
JUNCTION

R- W
CONNECTOR
1 IA 12 II L- O C
1 2C 3 2D
G- B

See Headlight
C C
System<6- 1>

B- R
W- B

15A
L- O
L- O

11
See Multiplex

2004 CELICA (EWD538U)

17 2F 1 2E EL HF HU HL BFG LFG
Communication System<1- 8>

HEAD RH LWR
5 IE4 10 IG4
2 OFF
SW
FOG

3 2
M OVERALL ELECTRICAL WIRING DIAGRAM

6 EA1
LIGHT

ON

10 B 6 A (1ZZ- FE) LOW

120A ALT
18 E 29 E (2ZZ- GE)
L- O
L- O

7. 5A ALT- S
HIGH

HEAD RELAY
5 1 1 MPX1 MPX2
FLASH
DIMMER SW

2 2
C15 F3 F4
R- Y

16 17 10
1 2A 2 2A RL COMBINATION FRONT FRONT
10 C (1ZZ- FE) SW G- W FOG LIGHT FOG LIGHT
E2 A , E3 B , E4 C , LH RH

W
21 I (2ZZ- GE) 1 1

B- R
E 8 E , E12 I
FL MAIN ENGINE CONTROL MODULE
Y

3. 0W
W- B
W- B
W- B

1 B
L 2 R- Y
IG B
G1 A , G2 B 1 W
B A
GENERATOR 3 W A
S B J3

BATTERY
W- B
JUNCTION

W- B
CONNECTOR
IF Instrument panel Cowl side IE Front left EM Cowl side IG Front right EA
brace RH panel LH fender panel RH fender
 9 CELICA

P ow er S ou rc e H ea dligh t (w / H ID ) * 1 : w/ Fog Light

* 2 : w/o Fog Light

1 2 3 4

8
L- R L- R
ACC IK

5
W 1 AM1 IG1 2
IK L L- W 1 5

L W- L IG1
25A
RELAY
AM1
I10 2 2 2 2
IGNITION SW 2 3
3 2
DIMMER RELAY
DRL NO. 2

L- R

R- L
1 IA 20 IM 12 II
W- B
5 1 1 1 W- B
B- R
R- L

L- R

HEAD RH UPR
10A
L

HEAD LH UPR
10A
HEAD RH LWR
15A

HEAD LH LWR
15A

9 II2 2 IC 1 IB
DRL NO. 1
HEAD LVL
7. 5A

17 2F 1 2E 7 2F 1 2H 5 2H
B C

BODY ECU- IG
5A
2 2
2004 CELICA (EWD538U)

MPX- B
7. 5A
2 2

L- W
2 2
40A MAIN
120A ALT

25A DCC

R- L
4 2D 5 2D 3 2D 10 2D
6 2
R- Y

R- Y
R- L 3 1 17 B 8 11 3 10
LG

1 1

CONTROL ECU LH
HEADLIGHT
H13
DRL B E IG HRLY
1 5 B6 A , B7 B
BODY ECU
HEAD 4 2
RELAY W- B L HF H T HU CLTS CLTE CLTB PKB
R- Y

R- W
R

8 17 A 12 A 18 A 5 A 19 A 3 A 24 A 4 A 19 B
R- B R- B
R- B

2 3 IE4
9 IE4
LG
CONNECTOR
JUNCTION

LG- R
LG- B

G- W

R- B
P- L
J4 A , J5 B

LG
E B
1 2A 2 2 2 2
R- W

R- W
(*2)

<8- 3>
Light Relay
From Fog

See Multiplex

P- B

R- L
2 5 2 3
CONNECTOR
JUNCTION

Communication
J4 A , J5 B

A B A B System<1- 8>
RELAY
DRL NO. 3

D A
RELAY
DRL NO. 4

4
8 13 14 7 4 3 1
W- G

HF H T EL HU HL CLTS CLTE CLTB

CONTROL ECU RH
HEADLIGHT
H14

3 2
1 3 1 5
R- W (*2)

R- W (*1)

C A
B- R

2 2 2 2 2 OFF
SW
CONTROL
LIGHT

R- W A14
TAIL
W- B

W- B

AUTOMATIC LIGHT
1 4 HEAD CONTROL SENSOR
W- B

W- R

W- R

W- R
R- Y

R- Y
LIGHT RESISTOR
DAYTIME RUNNING
D9

1
FL MAIN LOW 1
DIMMER SW
COMBINATION METER
C12 A , C13 B

16 B 3 A
CONNECTOR
JUNCTION

3. 0W B A
J4 A , J5 B

BRAKE SW
PARKING
P3
10 IE4 HIGH
2 IE5
W- B

BEAM
HEAD

FLASH
2
C15
W- B

W- R

W- B
R- Y

16
B B B B COMBINATION
BATTERY W- B W- B 19 A 2 A SW
W- B

R- Y R- Y
A
J3
W- B

W- B

W- B W- B JUNCTION
CONNECTOR
EB Front left IG Cowl side EA Front right Front left EM IF Instrument panel IE Cowl side
fender panel RH fender fender brace RH panel LH

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 10 CELICA

P ow er S ou rc e H ea d lig ht (w /o H ID ) * 1 : w/ Fog Light

* 2 : w/o Fog Light

1 2 3 4

8
ACC L- R
IK
5
W 1 AM1 IG1 2 L- R
IK 1 5

L- R IG1
25A
RELAY
AM1 L- W
I10
IGNITION SW 2 3
W- L

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L- R
R- L

2
1 IA 20 IM 12 II
L- R

L W- B

L 1 1 W- B

R- L
B- R
10A
10A

B- R
2 2 2 2 9 II2 2 IC 1 IB
17 2F 1 2A 1 2E 7 2F 1 2H 5 2H
B C
5A

HEAD LH UPR

HEAD RH UPR
2 2 3 2
2 2
7. 5A

15A

15A
L- W
MPX- B

2 2

7. 5A
DRL NO. 2
BODY ECU- IG

6 2

25A DCC

120A ALT
40A MAIN
HEAD LVL
DRL NO. 1
5 1

DIMMER RELAY
R- Y

1 8 11 3 10

HEAD LH LWR
H1

HEAD RH LWR
17 B
1 1
(High)

DRL B E IG HRLY
R- Y

1 5 10 2D 3 2D 4 2D 5 2D B6 A , B7 B
BODY ECU
HEADLIGHT LH

HEAD LG
2
RELAY L HF H T HU CLTS CLTE CLTB PKB

R- W
R- B

R
17 A 12 A 18 A 5 A 19 A 3 A 24 A 4 A 19 B
2 3 8
9 IE4 R- Y R- B R- B
IE4

2004 CELICA (EWD538U)

LG
P- L
R- B

G- W

LG- B
LG- R

2 2 E B 2 2

(*2)
See Multiplex

R- W
R- W
M OVERALL ELECTRICAL WIRING DIAGRAM

Communication

R- L
R- L

P- B

A B A B 2 5 2 3 System<1- 8>
<8- 3>

D A
From Fog

4 8 13 14 7 4 3 1
Light Relay

J4 A , J5 B

RELAY
RELAY

HF H T EL HU HL CLTS CLTE CLTB

JUNCTION
R- B

DRL NO. 3
DRL NO. 4

JUNCTION CONNECTOR

2
C A

CONNECTOR
1 3 1 5 OFF

B- R
H3
SW

2 2

J4 A , J5 B
TAIL A14
2 2 2
LIGHT

AUTOMATIC LIGHT
RH(High)
R- W (*2)
R- W (*1)

CONTROL SENSOR
CONTROL

HEAD
HEADLIGHT
W- B
W- B

R- W
1
W- R

W- R
FL MAIN 1 LOW 1

H4

H2
D9

R- Y
R- Y

W- B
3. 0W 1 1
16 B 3 A HIGH
P3

10 IE4 B A
2 IE5
FLASH
DIMMER SW
PARKING

2 2
BRAKE SW

J4 A , J5 B

C15
LIGHT RESISTOR

2 16
HEAD
BEAM

R- Y

COMBINATION
DAYTIME RUNNING

HEADLIGHT LH(Low)
HEADLIGHT RH(Low)
BATTERY
C12 A , C13 B

B B B B SW
W- R

JUNCTION CONNECTOR

W- B 19 A 2 A

W- B
W- B
W- B
W- B

A
COMBINATION METER

J3
W- R

W- B W- B
R- Y

JUNCTION
W- B
W- B

CONNECTOR
Front left EB Front EA IG Cowl EB Front left Front left EM IF Instrument panel IE Cowl side
fender right side fender fender brace RH panel LH
fender panel
RH
 11 CELICA

P ow e r S o urc e H ea dlig ht B e am L e v el C o ntr ol

1 2 3 4

J6
JUNCTION
7 CONNECTOR
LG LG A A LG
IE4

A
LG

LG

5 2D 4 2D

H10
HEADLIGHT BEAM
2004 CELICA (EWD538U)

2 LEVEL CONTROL SW
7. 5A +B
HEAD LVL
DRL NO. 1

LH GND RH
3 2
4 1 5
<9- 1>
System
See Headlight

LG

HEAD
W- B
G- Y

G- R

RELAY

5 1
6 IE5 5 IG3 6 IG3
G- Y

G- R

LG
R

H12
1 2A HEADLIGHT BEAM
LEVEL CONTROL
3 2 2 ACTUATOR RH
B- R

H11
HEADLIGHT BEAM
LEVEL CONTROL
ACTUATOR LH
FL MAIN
3. 0W

1 1 3
LG
W- B

W- B

BATTERY 15 IE5 2 IG5

W- B W- B
W- B

A
J3
JUNCTION
CONNECTOR
IE Cowl side
panel LH

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 M OVERALL ELECTRICAL WIRING DIAGRAM

L2
LICENSE PLATE
LIGHT RH
G W- B

Back Door
4

left
G G G G W- B

1 BA1

1 BB1

BK
1

2
L1
LICENSE PLATE
LIGHT LH

J12 A , J13 B
JUNCTION
CONNECTOR
G G W- B

BL
A A

C B

Back panel
R7
TAILLIGHT RH

center
[REAR COMB.
LIGHT RH]

G G W- B
A A

C B

5
R6
TAILLIGHT LH
[REAR COMB.

Front right
LIGHT LH]
3

fender
F6
FRONT PARKING
LIGHT RH

EA
G W- B
J4 A , J5 B
T aillig h t

A A

2
CONNECTOR

W- B
JUNCTION

Cowl side
panel RH
F8
FRONT SIDE MARKER
LIGHT RH
G G G W- B W- B
2 IO

IG
6 IE

C B

A A

F5
FRONT PARKING
LIGHT LH
G W- B
5 IC

F7
TAIL
10A

FRONT SIDE MARKER

2

LIGHT LH
G W- B W- B

EB
4 IC

Front left
fender
COMBINATION

CONNECTOR
JUNCTION
C15

SW
BODY ECU

J3
B6 A

W- B
EL

IE
A
16
H

Cowl side
panel LH

LG
TRLY

5 A
T

T
1

14

HEAD
TAIL
OFF

LIGHT
CONTROL
SW
1

RELAY

BATTERY
TAIL
P ow er S ou rc e

120A

FL MAIN
ALT

3. 0W
1

B- R B- R
1 2E

1 2A
1 IA
12 CELICA

2004 CELICA (EWD538U)

Downloaded from www.Manualslib.com manuals search engine

 13 CELICA

P o w e r S o ur ce B ac k - U p L ig ht S to p L ig ht H orn

1 2 3 4
* 1 : w/ Door Lock Control
* 2 : w/o Door Lock Control
* 3 : 1ZZ- FE

B- R

B- R
2

Module<2- 10><3- 8>

To Engine Control
6 2F

SW
STOP LIGHT
S8
1 2E 1 2A

ECU<18- 4>
To Cruise Control

Actuator<19- 3>
ECU with
To Skid Control
L- R

ACC 2
19 2C
1 AM1 IG1 2 1
R- L 120A
ALT
(A/T)
(M/T)
G- B
B- R

R- L

L- R

R- L
W

1
[PARK/NEUTRAL
BACK- UP LIGHT SW
P1
I10
POSITION SW]

G- W

G- W

G- W

G- W
(*3)
IGNITION SW 2 3
LIGHT SW
BACK- UP
B1

R
1 IA 2 IK 7 IB 8 IK 5 IK 9 IK 14 IF 1 IG 6 IB
2 10A
6 HORN
1
5A 13 11 IO
(M/T)
2004 CELICA (EWD538U)

R- B

10A 25A R- B R- B R- B
BK/UP II2
STOP AM1
LP (A/T)

24 2F 6 2C
G- W

G- W
C J12 A , J13 B 5 1
JUNCTION
B A CONNECTOR C A C A HORN
3 1 J12 A , J13 B
RELAY
23 2F JUNCTION

<1- 8>
To Body ECU
IG1 CONNECTOR 3 2
RELAY
B B B B A B A B
R- B

5 2
21 2F 2 2D
G- W

13 IE4
R- B

R- B

L- B
12 II
G- W

G- W
3 BA1
R- B

(*1)
L- B
3 IE5
G- W

21
[REAR COMB. LIGHT RH]
BACK- UP LIGHT RH
R7

[REAR COMB. LIGHT RH]

STOP LIGHT RH
R7
[REAR COMB. LIGHT LH]
BACK- UP LIGHT LH
R6

[REAR COMB. LIGHT LH]

STOP LIGHT LH
R6
[COMB. METER]
BUZZER
REVERSE WARNING
C12

STOP LIGHT
HIGH MOUNTED
H10

CONNECTOR
JUNCTION
J8
4 4 2 2 A
2 L- B A

G- Y
(*1)
W- B

BUZZER A
1
5 5 5 5
7
B- R

(*2)
L- B

(*1)
L- B
W- B

FL MAIN 2 BA1
W- B

W- B

W- B

3. 0W
BR

W- B

G- Y 1
HORN(High)
H5

HORN(Low)
H6
W- B

1 1 C16
HORN SW
J14 A [COMB. SW]
BATTERY JUNCTION
W- B

CONNECTOR

Instrument IF BL Back panel Cowl side IH Luggage room BJ BL Back panel

panel brace center panel RH left center
RH

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 14 CELICA

P ow e r S ou rc e Illu m in ation * 1 : Separate Type Amplifier

* 2 : Built- In Type Amplifier

1 2 3 4

D D

3 1 7. 5A 7. 5A
PANEL 1 PANEL 2
TAIL
RELAY 6 5

5 2

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1 IA 1 4 IL 5 IF 8 IM 16 IP 17 IF 4 IE 17 IN 19 IM
TRLY
B6 A

G
BODY ECU
T G
5 A
J8

B- R
JUNCTION
E CONNECTOR
G E
(Canada)
G- B

1 2E E E
W- G R- B

G
(Canada)

G
G
G
G
G

LG
(*1)
(*2)

G- B
G- B
G- B
G- B

(USA)
120A 4 B 12 B 5 A

H15
ALT

O3
14
1
G3

C9
3 (USA) 2 1
R4

10 A
T H EL 6 (Canada) 3 7 3 8 1

H7
[O/D MAIN SW]
1 2A

A9
OFF

C10
ILLUMINATION

2004 CELICA (EWD538U)

METER
TAIL

CLOCK

SW
A/C SW
C12 A , C13 B

TAIL 1 (USA) 1 4 6 9 2

HAZARD SW

LIGHT
12 (Canada) 12 5 B
COMBINATION METER

R2 A , R3 B
ILLUMINATION

CONTROL
RADIO AND PLAYER

HEAD

CIGARETTE LIGHTER
M OVERALL ELECTRICAL WIRING DIAGRAM

RADIO AND PLAYER

C15

B- R
16 2
A/T SHIFT LEVER ILLUMINATION
GLOVE BOX LIGHT AND SW

COMBINATION SW
19 A 17 A

HEADLIGHT BEAM LEVEL CONTROL SW

W- G
(*1)
(*2)

W- B
W- B
W- B
W- B

W- G
W- G
W- G
W- G
W- G

(USA)
W- G

W- B
FL MAIN
R

(Canada)
W- B

3. 0W
T
R5

10 IM 4 II 5 IP 1 IE 10 IN 16 IM 18 IM
RV E
RHEOSTAT

2 1
BATTERY
12 II 20 IM R

W- B
BR

W- B
W- B

A A
J3 W- B A J10

W- B
JUNCTION JUNCTION
(Canada)
CONNECTOR CONNECTOR
Cowl side IE IF Instrument panel IH Cowl side Cowl side IE
panel LH brace RH panel RH panel LH
 15 CELICA

P o w e r S o urc e T urn S ign al an d H a z ard W a rning L igh t S h ift L oc k

1 2 3 4

C15

G- B
R
H7 TURN SIGNAL SW
7 HAZARD SW [COMB. SW]
ACC
B1 B2 F TL TB TR TB TL TR
W 1 AM1 IG1 2 2
OFF LH
S8
ON RH STOP LIGHT
SW
G- B

6 5 1 4 2 2 1 3
R- L

L- R
W

I10 1
IGNITION SW

G- W

G- W
G- B

G- Y

G- B

G- Y
L- O
G

G- W
2 IK 5 IK 7 IN 3 IE 8 IK
B
1 B B
9 IK
5A TENS RDC

7. 5A TURN

J7
G- W JUNCTION
3 1 CONNECTOR 20 IN
T2
C B L
TURN SIGNAL
2004 CELICA (EWD538U)

3 1 FLASHER RELAY E

G- W
R- L
10A STOP

S3
25A AM1

2
IG1 G- B SHIFT LOCK
RELAY 5 CONTROL ECU 3
5 IE 9 IE W- B IG STP
5 2

1 IA 12 II 20 IM 4 IE4 7 IC 12 IO 14 IM 1 IM 13 IO 2 IE

G
B- R

G- Y

G- Y

G- Y
W- B

W- B

1 2E 29 2F D B D B D B

2
G- B

G- B

G- B

G- Y

G- Y
120A ALT

10A HAZ

E A
J4 A , J5 B
JUNCTION
CONNECTOR E SLS+ SLS-
[REAR COMB. LIGHT RH]
REAR TURN SIGNAL LIGHT RH
R7
[REAR COMB. LIGHT LH]
REAR TURN SIGNAL LIGHT LH
R6

G- Y

1 4 A 9 B 1
LIGHT LH
FRONT TURN SIGNAL
F9

3 3
1 1
LIGHT RH
FRONT TURN SIGNAL
F10

W- B
TURN R
TURN L

1 2A
B- R

2 2
5 5
5 IN

SOLENOID
SHIFT LOCK
FL MAIN
3. 0W 19 A
C12 A , C13 B
TURN SIGNAL
W- B

W- B

W- B INDICATOR LIGHT 12 II
[COMB. METER]
BATTERY

W- B

W- B

W- B

W- B

A
W- B

W- B W- B J3
JUNCTION
CONNECTOR
IF Instrument Front left EB BL Back panel Cowl side IG EA Front IE Cowl side IF Instrument panel
panel brace fender center panel RH right panel LH brace RH
RH fender

Downloaded from www.Manualslib.com manuals search engine

 16 CELICA

P ow er S ou rc e F ro nt W ipe r a n d W a s he r R ea r W ipe r a nd W a sh er

1 2 3 4

ACC

W 1 AM1 IG1 2 L- R
25A 15A 15A
WIPER WASHER RR WIPER

I10
IGNITION SW

5 IK 8 IK
7 II 8 II 10 IE 3 IO

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4 3
1 5 L L L
BA2 BB2

L
L- B
25A W1
IG1
AM1 WASHER MOTOR 1
RELAY
2 IG4 3 IG4
2 3 2 3
L- B L- Y
REAR
WIPER

L
1 IA 12 II L
P 2 RELAY
2
1 3
B +1 5 L- Y

5 BB2 4 BB2
+2 3 L- O
M M
MOTOR

B- R
W- B
P

L- Y
REAR WIPER

5 BA2 6 BA2 R12

REAR WIPER MOTOR
+S 1 L- W AND RELAY
L- Y
L- R

L- O
V
P

E
L- Y

2004 CELICA (EWD538U)

1 2E 4 F11
FRONT WIPER 1 IG4 5 IG4 6 IG4 9 IG4 4 IG4 10 IF1 11 IF1
MOTOR
2
M OVERALL ELECTRICAL WIRING DIAGRAM

L
P

L- Y V
L- Y

L- R

L- O

L- W
120A
ALT 16 17 8 7 11 12 10 13
+S +B +2 +1 WF WR +1R C1R
1
C14
+S +2 +1 +B INT1 INT2 B1 WF EW E WR +1R C1R WIPER AND
1 2A WASHER SW
MIST OFF WASH1 [COMB. SW]

W- B

B- R
OFF ON OFF
FL MAIN
3. 0W INT INT

LO LO

HI WASH2

BATTERY EW 2 W- B

W- B A

W- B
J3
INTERMITTENT WIPER RELAY JUNCTION
CONNECTOR
Instrument IF EA Front IG Cowl side IE Cowl side
panel brace right panel RH panel LH
RH fender
 17 CELICA

P ow e r S o urc e M o on R oo f R em ote C o ntro l M irror

1 2 3 4
I10
IGNITION SW

ACC 3 GR O O

W 1 AM1 IG1 2 L- R R- L

4 IA1

R15

O
8 IK 12 IK 9 IL 7 IK REMOTE CONTROL MIRROR SW 8

OPERATION SW
D 1 C
J8
7. 5A ECU- ACC

5A TENS RDC

JUNCTION

<1- 8>
From Body ECU
CONNECTOR

LEFT

RIGHT

UP

DOWM

/UP
LEFT

/DOWN
RIGHT
C
L- R

2 C

SELECT SW
LH RH LH RH
1 IK 5 IK
HL HR VL VR M+ E
2004 CELICA (EWD538U)

R- L

L- R

GR
3 1 5 2 4 3 6 7
15A S/ROOF

25A AM1

IG1 RELAY

BR- W

BR- Y

LG- B

R- W

W- B
P- L
3 IB1 4 IB1 5 IB1

5 2
R- L

L- R

GR

C B
C J11
8 5 2 JUNCTION
CONNECTOR
C B
1 IA 12 II
RELAY AND MOTOR
MOON ROOF CONTROL
M2

M
B- R

LG- B

R- W

W- B
P- L
MOON ROOF CONTROL RELAY
1 2E

2 MOON ROOF
11 IA1 12 IA1 10 IA1 14 IA1
MOTOR AND
LIMIT SW
120A 9 10 7 1
ALT

LG- B
W- B

W- B

R- W
G- Y

P- L
P

1
7 IB1
3 4
OPN CLS
1 2A 8 IH1 7 IH1 9 IH1
M3
W- B
B- R

MOON ROOF OPEN CLOSE

CONTROL SW
BR- W

BR- Y

LG- B
R- W

R- W

W- B
P- L

FL MAIN
CONNECTOR CONNECTOR
JUNCTION
J9

E A
3. 0W
8
1 5 3 5 1 3
W- B

A
W- B

MV MH M+ MH MV M+
JUNCTION
J10

A M M M M A
BATTERY
W- B

J3
JUNCTION
CONNECTOR
IF Instrument panel BI Roof left IH Cowl side R13 R14 IE Cowl side
brace RH panel RH REMOTE CONTROL REMOTE CONTROL panel LH
MIRROR LH MIRROR RH

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 M OVERALL ELECTRICAL WIRING DIAGRAM

CONNECTOR
JUNCTION

Cowl side
panel RH
J10

IH
From Stop Light G- W

STP-

A
SW<13- 3>

W- B
J9
JUNCTION
4

CONNECTOR

A
P- B W- B

GND
To Data Link

TC
Connector 3<3- 4>

A
5

16

A
W- B
From Engine Y Y Y

ECT
3 EA1

8 IE3
Control

6
Module<5- 4>

IG3
10

W- B
B B See Stop Light

OD
19 IE3
System<13- 3>

W- B
14
To Engine S8
Control STOP
Module LIGHT
<3- 8><5- 4> L- W L- W SW

GND 4
IDL
18 IE3

13

2
G- B R- Y R- Y

4 IG3
L
8

3
L
R- Y Y- B

PI
22

16

4
C12
C ru is e C o n trol (1 Z Z - F E )

CRUISE CONTROL P- L P- L

MO

3 IG3
INDICATOR LIGHT

MO
15

CRUISE CONTROL
[COMB. METER]
3

ACTUATOR
R- W R- W

11 IG3
MC

MC
7

C5
CRUISE CONTROL ECU

B- W From Park/Neutral
20 2C

Position SW<5- 4>

W
CCS

CRUISE CONTROL SW
B- Y
C18

CCS
10

2
7 IE3
9 2F

(A/T)

SET/COAST
RES/ACC

CANCEL
CRUISE
(A/T)
B- Y

[COMB. SW]
C17
CRUISE CONTROL
CLUTCH SW
ECC
B

C16
B- O B- Y B- Y B- Y
1 IC1

2 IC1

(M/T) (M/T) (M/T)

B

B
1

3
W- B

J8
JUNCTION
CONNECTOR
B- O
B
9
2

W- R From Combination
SPD

Meter<24- 3>
L- R

12
IG1 2
ACC
IGNITION SW

1 AM1
I10

25A AM1
W
5 IK

L- R
8 IK

Instrument panel
P ow e r S o urc e

brace RH

B- O
10 IK
1

W- B W- B
IF
II

5A ECU- IG
12

B- O
10 II

BATTERY

(M/T)
A
5

IG1 RELAY
18 CELICA

FL MAIN
120A
ALT

3. 0W

5A WARNING
1

R- Y B- R B- R
1 2E

1 2A
11 IM

1 IA
A
6

2004 CELICA (EWD538U)

Downloaded from www.Manualslib.com manuals search engine

 19 CELICA

P ow e r S o urc e ABS

1 2 3 4

I10 A6 A7
IGNITION SW ABS SPEED SENSOR ABS SPEED SENSOR

<2- 5><2- 6><3- 4>

Connector 3
To Data Link
FRONT LH FRONT RH
B- O
R- Y

L- R

ACC 2 1 2 1

R- Y
1 AM1 IG1 2 L- R

SW<13- 3>
From Stop Light
11 IM 3 IG
22 A

COMBINATION METER
C12 A , C13 B
6 2

ABS
W
5A WARNING

2 IG3 9 IG3
5A ABS- IG

8 IK 5 IK
G- W
W- R

A A
B- O

P- B

BR
W

L
17 B 8 B 19 A

W- B
3 1

GR
5 IE3 16 IE3

V
25A AM1
IG1 RELAY
2004 CELICA (EWD538U)

13 IE3 3 IE3 15 IE3 12 IE3 2 IE3 20 IM

4 IE3 14 IE3
5 2
W- R

G- W
B- O

P- B

12 II

GR
V

W- B
1 IA 12 II 25 15 16 14 10 9 8 31 30 13 32
IG1 TS TC D/G STP FL+ FL- FR+ FR- WA BRL
B- R

W- B

S11
1 2E SKID CONTROL ECU WITH ACTUATOR
+BS +BM GND1 GND2 RL+ RL- RR+ RR- PKB
1 23 2 24 11 12 33 34 18
2 1
50A ABS NO. 1

25A ABS NO. 2

120A ALT

B- W

W- B

W- B
B- R

R- B
W
R

1 2

1 2A 2 2G 9 2D 2 II2 7 II2 1 II2 6 II2

SW<24- 4>
To Parking Brake
B- W
B- R

B- R
FL MAIN
3. 0W
W
R

B
W- B

1 2 1 2
W- B
BATTERY A15 A16
W- B

ABS SPEED SENSOR ABS SPEED SENSOR

REAR LH REAR RH

Instrument panel IF Front left fender EB Instrument panel IF

brace RH brace RH

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 20 CELICA

P ow e r S o urc e SRS
* 1 : w/ Side Airbag

1 2 3 4

9 IM
ACC S4 S5 F1 F2
SIDE AIRBAG SIDE AIRBAG FRONT AIRBAG SENSOR FRONT AIRBAG SENSOR

L- R
To Engine Control
W 1 AM1 IG1 2 SQUIB LH SQUIB RH LH RH

L
4 IK 6 IH

Module<2- 10><3- 8>

GR
L- R
C12
14

Connector 3
To Data Link

<2- 5><2- 6>

10 IH 8 IK 5 IK
5 AM2 IG2 6 1 2 1 2
B- O

B- O
(1ZZ- FE)

[COMB. METER]

(2ZZ- GE)
ST2

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15 2 1 2 1

<1- 8>

P (1ZZ- FE)

SRS WARNING LIGHT

B- O C C

P- G(2ZZ- GE)

B- Y
B- Y

B- R
To Body ECU
BR

I10 (2ZZ- GE)

BR- W

B- W

W- R

IGNITION SW J6 7 IM 18 IF 14 IB

B- O

25A AM1
JUNCTION

7. 5A SRS- IG
(*1)
(*1)
(*1)
(*1)

CONNECTOR 1 IG1

Y- R
Y- R
1 IE2 2 IE2 2 IG1

Y- G
Y- G

W
P- B
W- B 1 IH 5 IH

P
3 1
W- B
BR
BR- W

B- W

P
W- R

GR

B- Y
11 IK 3 IH 4 IH 27 A 28 A 5 A 3 A 12 A 19 A 6 A 23 A 11 B 5 B 6 B 2 C 1 C 15 A 26 A 9 A 20 A

IG1 RELAY
5 2 E1 E2 IG2 LA SIL TC IG1 GSW2 LBE+ SFL+ SFL- SFR+ SFR- +SL - SL +SR - SR

C6 A , C7 B , C8 C
CENTER AIRBAG SENSOR ASSEMBLY

1 IA 9 IC 12 II PL+ PL- PR+ PR- D+ D- P+ P- DML+ DML- DMR+ DMR- VUPL SSL+ FSL ESL VUPR SSR+ FSR ESR
2 B 1 B 5 C 6 C 14 A 13 A 10 A 11 A 17 A 16 A 7 A 8 A 7 B 9 B 10 B 12 B 12 C 10 C 9 C 7 C

B- R
B- R
W- B
1 2E 16 2F (*1)
(*1)
(*1)
(*1)

R- Y

W- L
R- W

W- G

2004 CELICA (EWD538U)

2
P

2 IA3 1 IA3 2 IH3 1 IH3

LG
GR

(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)

P- L
L- Y

L- W
LG- B
GR- L

Y
Y
Y
M OVERALL ELECTRICAL WIRING DIAGRAM

Y- B
Y- B
Y- B
Y- R
Y- G

120A ALT
7. 5A AM2
(*1)
(*1)
(*1)
(*1)

R- Y

W- L
R- W

W- G

1 2 1 2 1 1 2 3 4 1 2 3 4

1 2
1 2A
SPIRAL D7 D8 S9 S10
CABLE DOOR SIDE DOOR SIDE SIDE AIRBAG SIDE AIRBAG
AIRBAG AIRBAG SENSOR LH SENSOR RH

B- R
1 2 1 2 1 2 SENSOR LH SENSOR RH
FL MAIN
3. 0W

P9 P10 A13 A12

PRETENSIONER PRETENSIONER AIRBAG SQUIB AIRBAG SQUIB
LH RH (Steering (Front Passenger
Wheel Pad) Airbag Assembly)
BATTERY

W- B
IF Instrument panel
brace RH
 21 CELICA

P ow e r S o urc e C ig are tte L ig hte r C lo c k (U S A ) R a dio an d P lay e r (B uilt- in T yp e A m plifie r)

1 2 3 4

ACC 3 GR
R8 R9
1 AM1 IG1 REAR SPEAKER REAR SPEAKER
LH RH
1 2 1 2

I10
IGNITION SW
L- W
L- Y

W
R
B

Y
6 II 17 IM 5 IK 12 IK 1 II

12 IF1 13 IF1 4 IF1 5 IF1

2
D
7. 5A DOME
15A RADIO

7. 5A ECU- ACC
25A AM1

15A CIG

L- Y
GR

W
B

R
2004 CELICA (EWD538U)

B
2

R2 A , R3 B
2 IC 1 IA 1 IF 2 IM 3 A 4 A RADIO AND PLAYER 2 B 6 B 1 B 3 B
ACC +B RL+ RL- RR+ RR-
L- W
B- R
L- R

GR

GR

GND ANT FL+ FL- FR+ FR-

4 5
7 A 8 A 2 A 6 A 1 A 5 A
7 2F 1 2E ACC +B
2
C9
C10
2 CIGARETTE CLOCK
LIGHTER
BR

LG
B

L
4
120A ALT
25A DCC

EARTH PBEW
W- B

1 2
11 IF2 6 IA1 5 IA1 6 IH1 5 IH1
1
P
W- B

E
1 2A J6
B

JUNCTION

LG
P

L
CONNECTOR
11 IF 10 IM E
B- R

2 1 2 1
P

<23- 3>
Control Relay
To Auto Antenna

F15 F16
FL MAIN 12 II FRONT DOOR FRONT DOOR
3. 0W
LG
TWEETER TWEETER
P

L
Meter<24- 4>
From Combination

SPEAKER LH SPEAKER RH

1 2 1 2
W- B

BATTERY
F13 F14
BR

FRONT DOOR FRONT DOOR

SPEAKER LH SPEAKER RH
IF Instrument panel IF Instrument panel
brace RH brace RH

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 22 CELICA

P ow e r S o urc e R a d io an d P lay e r (S ep a rate T y p e A mp lifier)

1 2 3 4
11
B B To Auto Antenna BR
IF2
Control Relay<23- 3>
ACC 3 GR
R4
1 AM1 IG1 13 RADIO AND PLAYER 20
ANT GND R8
12 IK REAR SPEAKER
RH
1 2
I10 D B ACC AMP MUTE BEEP F. L F. R R. L R. R SGND GND3
IGNITION SW 1 11 3 7 17 9 8 19 18 16 10

L- Y
B
Y

GR

L- Y

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7. 5A ECU- ACC
2

L- Y
1 II D

J7
12 IF1 13 IF1
L

Y
B

R
R

G
D

BR
6 II 5 IK

(Shielded)
(Shielded)

JUNCTION

GR
D D

CONNECTOR
J6 D GR
JUNCTION
CONNECTOR
B
Y

25A AM1
GR

15A RADIO
L- Y
S6 A , S7 B
STEREO POWER
2 B 7 A AMPLIFIER 1 B 12 B 4 B 5 B 6 B 13 B 14 B 11 B 4 A 11 A
2 IC 1 IA ACC BU+ AMP+ MUTE BEEP FL FR RL RR GND(S) RL+ RL-

L- R
B- R
GND(E) FL+ FL- FR+ FR- RR+ RR-
12 A 2 A 9 A 1 A 8 A 3 A 10 A
7 2F 1 2E

2004 CELICA (EWD538U)

L

P
V
R
W

LG

W- B
M OVERALL ELECTRICAL WIRING DIAGRAM

120A ALT

25A DCC
6 IA1 5 IA1 6 IH1 5 IH1 4 IF1 5 IF1
1
L

P
V

1 2A
LG
R
W

2 4 2 4
F15 F16
FRONT DOOR FRONT DOOR

B- R
TWEETER SPEAKER TWEETER SPEAKER 1 2
LH RH
1 3 1 3
R9
FL MAIN REAR SPEAKER
3. 0W P- L RH
L- R

V- W
LG- R

W- B
1 2 1 2

BATTERY A
J10 F13 F14
BR

JUNCTION FRONT DOOR FRONT DOOR

CONNECTOR SPEAKER LH SPEAKER RH

Cowl side IH Instrument panel IF

panel RH brace RH
 23 CELICA

P o w e r S o urc e A uto A nte n na C lo ck (C an a da )

1 2 3 4
L- R

ACC 3 GR 2 IC
1 AM1 IG1 2 L- R

ST1 B

Player<21- 3><22- 3>

From Radio and
7. 5A
GR
W

I10

Meter<24- 3>
From Combination
DOME
IGNITION SW

5 IK 8 IK 12 IK 2

3 1 C D 3 II

IG1 5A
25A 7. 5A
RELAY TENS
AM1 ECU- ACC
RDC

W- R
L- W
5 2

GR
B
1 2
2004 CELICA (EWD538U)

A21
AUTO ANTENNA C10
1 IA 12 II 7 IK 12 IN 1 II CONTROL RELAY 4 5 1 CLOCK 7
GR

ANT ACC B SPD

W- B
B- R
L- R

R- L

GR

7 2F 1 2E ACC IG B E IG+ PSW SG TH+ E

6 5 2 1 2 8 4 3 12

2 C
W- B

W- B
Y- G

Y- B
R- L

L- R

R- L
GR

C J8

P
JUNCTION
15A
25A 120A CONNECTOR
AUTO C
DCC ALT

CONNECTOR
JUNCTION
J6
ANTENNA E
4 IF2 1 IF1
14 IE5 5 IE5
1
E
R- L

R- L

R- L

L- R

Y- G

Y- B
1 2A 1 2D

P
2 A20
B- R

L- R

AMBIENT
TEMP.
12 SENSOR
Meter<24- 4>
From Combination

L- R
FL MAIN IE4
3. 0W 1
W- B

W- B
CONNECTOR
JUNCTION
J10
A A
W- B

BATTERY J14
JUNCTION
CONNECTOR
IF Instrument panel BJ Luggage room Cowl side IH
brace RH left panel RH

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 24 CELICA

P ow e r S ou rc e C o mb in a tion M e ter

1 2 3 4 R- L
A
Y- G
B
R- L From Engine W- R(*2, *3)
Control Module To Clock
<2- 11><3- 8> J8 W- R(*1, *2) <23- 4>
L- R JUNCTION
CONNECTOR D
6 2F
W- R D D W- R To Cruise

R- L

L- R
R- Y
(*1) Control ECU<18- 2>
ACC

BR- W
W- R

See Multiplex
To Engine Control Module

System<1- 8>
3 IM 11 IM 7 IB 11 IB

System<14- 4>
See Illumination
Communication
1 AM1 IG1 2 2 2C 10 IF <2- 10><3- 8>

L- R
4
1 6 6 IB To Clock<21- 2><23- 4>

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4 IM

R- L
I10 5 IM See Air Conditioning

W
System<26- 4>

R- L

L- R
IGNITION SW

R- Y
Y- G
P

BR- W
W- R

7. 5A ECU- B
5A BK/UP LP

5A WARNING
8 IK 5 IK 12 B 4 B 6 B 12 A 18 B 22 A 11 A 3 B 1 B 9 A 2 B 13 A
B A C

3 1

LCD SPEEDOMETER TACHOMETER

ILLUMINATION BUZZER

25A AM1
ABS
PKB

CHG
OIL P

IG1 RELAY
5 2
SPORTS A/T 1

METER ILLUMINATION
2 IC 1 IA 12 II

L- R
B- R
7 2F 1 2E

W- B

2004 CELICA (EWD538U)

LCD DISPLAY
2
M OVERALL ELECTRICAL WIRING DIAGRAM

25A DCC
120A ALT
1
7 A 8 A 20 A 13 B 1 A 15 B 10 B 14 B 6 A 18 A 21 A 5 A 17 A 10 A 17 B 8 B
C12 A , C13 B
COMBINATION METER
1 2A

BR
LG
W- B

LG- B
10 IE5 1 IE5

B- R
FL MAIN
LG

LG- B
3. 0W
<19- 4>

6 EA2 4 EA2
System<13- 2>

20 IE3
See Back- Up Light

System<26- 4>
System<14- 4>
See Illumination

and A/T Indicator

* 1 : 1ZZ- FE w/ Cruise Control

See ABS System

See Electronically

LG

R- L
G- Y

* 2 : Canada
See Air Conditioning

1 2 3
System<4- 7><5- 7>

BATTERY
* 3 : Except *1
Controlled Transmission

BR
IG+ SE SI
W- B

W- B
Instrument panel IF Cowl side IH Front left EB
brace RH panel RH V1 fender
VEHICLE SPEED SENSOR
(Combination Meter)
 M
PBKL DCTY PCTY

LEVEL WARNING SW
21 B

BRAKE FLUID
20 B

Front left
fender
14 B

B2

See Multiplex
R R W- B
BLVL

6 IE4

Communication

EB
SG3

2 A
2 B

2
System<1- 6><1- 8>
<1- 11><1- 12>
DBKL
8

7 B
SG2
1 B

B6 A , B7 B
SG4
4 B

BODY ECU

Y- G
FU+
FV

13 B
FUEL SENDER

Y- R
FUA
FR

12 B
2
F17

R- B
PKB
19 B

BR- W

1
FU-
FE

3 B

P3
3

PARKING BRAKE SW
From Skid Control
MPX1

R- L R- B R- B

5 II2
ECU with Actuator
16 A

<19- 3>
Y- G
17 A
L
7

See SRS System See SRS System

14 A

15 A
<20- 2> <20- 2>
SRS
See Engine Control

7 B
System<2- 5><3- 3>
MALFUNCTION
See Headlight
2 A

3 A
System<9- 3><10- 3>
C o mb in a tion M e ter

See Headlight BEAM

System<9- 3><10- 3>
16 B
HEAD

COMBINATION METER
TAIL

C12 A , C13 B
4 A
See Turn Signal
and Hazard Warning TURN L
Light System<15- 2>
<15- 3>

9 B
TURN R
See Cruise Control
6

16 A
System<2- 5><18- 3>
CRUISE
W- B W- B

20 IM

IF
19 A

12 II
FUEL WARNING

Instrument

brace RH
panel
FASTEN BELT

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DOOR
A/T OIL TEMP.
M
SPORTS A/T 4

5
24 CELICA (Cont’ d)
SPORTS A/T 3
SPORTS A/T 2

Y- G
R- L
A

B
2004 CELICA (EWD538U)
 25 CELICA

P ow e r S o urc e R a diato r F a n an d C on de ns e r F an R e ar W ind o w D e fog ge r

1 2 3 4

ACC
BODY ECU
W 1 AM1 IG1 2 L- R

Y- R
DEFB E DEF
8 IK 1 IC 2 11 4
I10
IGNITION SW

5 IK
1 1 5 1 5
5 2

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DEF
RELAY

IG1 RELAY

30A DEF
10A HTR

5A FAN RLY
5A DEF RLY
2 3

25A AM1
2 A C 3 1

1 IA 12 II 1 IN 7 IP 3 IP
B

Y- R
B- R
W- B

31 2F 1 2E
B
R

R- W

4 BA1 5 1
N2

2 2 5 1 1 5 1 5
RDEF IG+
B

FAN FAN 4 FAN 1 A9

NO. 1 RELAY NO. 2 RELAY NO. 3 RELAY A/C SW
NOISE FILTER

30A RDI

30A CDS
2 BB1 GND DEF
3 2 2 3 2 3
1 1 3 8
(Rear Window Defogger)

2004 CELICA (EWD538U)

B

2
W- B

1 A
M OVERALL ELECTRICAL WIRING DIAGRAM

120A 3 2G 1 2F 2 2F 28 2F 8 2H 2 2H 4 2G 7 2H R10 A , R11 B

ALT
REAR WINDOW
DEFOGGER

L- Y
L- Y 1 B 18 IP
L- W

1
3 IE4
W- B
W- B

B- W

W- R
System<26- 4>

B
1 2A
W- B
See Air Conditioning

A1

L- Y
2 M 8 BB1

B- R
7 IE
R1 4 IG5
FAN MOTOR

M RADIATOR 1
FAN MOTOR
A/C CONDENSER
W- B

FL MAIN 1
L- Y

3. 0W 2
To Engine Control
W- B

7 BA1
Module<2- 10><3- 8>

A3
A/C SINGLE
PRESSURE SW

W- B
3
BATTERY W- B
W- B
W- B
W- B

W- B

EM Front left Cowl side IG EA Front right Front left EM EB Front left BJ Luggage room IF Instrument panel
fender panel RH fender fender fender left brace RH
 26 CELICA

P ow e r S o urc e A ir C o nd ition in g

1 2 3 4

* 1 : 1ZZ- FE
W

* 2 : 2ZZ- GE
5 IK 3 IP 3 IC
ACC

1 AM1 IG1 2
10A HTR

R
A9
R 1 A/C SW
B- Y
L- R

I10 IG+
IGNITION SW
2
3 1
30 2F 1 1 1 1 ID A8
25A AM1

A/C EVAPORATOR
IG1
TEMP. SENSOR A/C LA/C DEF GND
RELAY
5 1 1 5 1 9 10 8 3

W- B
L- W
5 2

G- Y

G- R

L- B
1 IQ

G
MG/C HTR 4
RELAY RELAY
16 ID1 15 ID1 14 ID1 7 ID1 18 ID1
1 IA 12 II 8 IK
B
2004 CELICA (EWD538U)

3 2 2 3
B- Y

W- B
B- R

G- W
G- Y

L- W
1

L- B
L- R

G
B3
1 2G 1 2E M BLOWER
2 2B 32 2F 1 1 18 A 6 A 15 B 10 B 14 B
MOTOR
2
Y- O(*2)
Y- B(*1)

E2 A , E3 B B4
B- W

2 BLOWER RESISTOR
V- W

W- B

B- W

E 8 E , E12 I
ENGINE B- W 1 HI LO 4 W- B
50A HTR

12 A (*1) CONTROL
2 E (*2) MODULE M2 M1
9 IB
ACMG 3 2
1
PRE(*1)
B- W

L- W
L- R

LCKI HP(*2)
28 B 18 B (*1) 13 IM 10 IP
2
23 I 1 E (*2) 5 6
13 A
C12 A , C13 B
120A ALT

M2 M1
B- W 4 1
O

COMBINATION METER
V- W

V- W

H2 GND
(*1)

2 IE4

V- W
G

V- W 8
W- B

1
(*2)

9 EA1 LO
G

W- B

B5
(*1)
G

3 IG5 BLOWER SW
B- W

1 2A
3 1
W- B
O
B- R

A2
A/C MAGNET 1

FL MAIN CLUTCH AND 3 IQ 17 IP 18 IP

3. 0W LOCK SENSOR
A3
A/C DUAL
2 PRESSURE SW
BR

A
J1 7 IE
BATTERY JUNCTION
W- B

CONNECTOR 4
W- B
W- B

W- B

W- B

A
BR

Instrument panel IF Cylinder ED IG Cowl EA Front EM Front left IF Instrument panel

brace RH head cover side right fender brace RH
LH panel fender
RH

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