CHASSIS ELECTRICAL

Click on the applicable bookmark to selected the required model year.

 54A-2

CHASSIS
ELECTRICAL
CONTENTS

BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Engine Coolant Temperature Gauge Unit Check

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SERVICE SPECIFICATIONS . . . . . . . . . . . . . . . . . . 4
COMBINATION METER . . . . . . . . . . . . . . . . . . . . . 33
ON-VEHICLE SERVICE . . . . . . . . . . . . . . . . . . . . . . 4
HEADLAMP ASSEMBLY . . . . . . . . . . . . . . . 36
Electrolyte Level and Specific Gravity Check . . 4
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SERVICE SPECIFICATIONS . . . . . . . . . . . . . . . . . 36
Battery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

IGNITION SWITCH AND IMMOBILIZER TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 36

<except for 4D56> . . . . . . . . . . . . . . . . . . . . . 6 ON-VEHICLE SERVICE . . . . . . . . . . . . . . . . . . . . . 36
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Headlamp Aiming Adjustment . . . . . . . . . . . . . . 36
Luminance Measurement . . . . . . . . . . . . . . . . . . 38
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 6
Headlamp Bulb Replacement . . . . . . . . . . . . . . . 39
IGNITION SWITCH AND
IMMOBILIZER-ECU . . . . . . . . . . . . . . . . . . . . . . . . . 11 HEADLAMP ASSEMBLY . . . . . . . . . . . . . . . . . . . . 40

IGNITION SWITCH AND IMMOBILIZER FOG LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . 41

<4D56> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SERVICE SPECIFICATIONS . . . . . . . . . . . . . . . . . 41
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 14 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 41
IGNITION SWITCH AND IMMOBILIZER-ECU ON-VEHICLE SERVICE . . . . . . . . . . . . . . . . . . . . . 41
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Fog Lamp Aiming Check . . . . . . . . . . . . . . . . . . . 41
COMBINATION METER . . . . . . . . . . . . . . . . 23 FOG LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
SERVICE SPECIFICATIONS . . . . . . . . . . . . . . . . . 23 SIDE TURN-SIGNAL LAMPS . . . . . . . . . . . 45
SEALANTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 SIDE TURN-SIGNAL LAMPS . . . . . . . . . . . . . . . . 46
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 24
ROOM LAMP . . . . . . . . . . . . . . . . . . . . . . . . . 46
ON-VEHICLE SERVICE . . . . . . . . . . . . . . . . . . . . . 30
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 46
Speedometer Check . . . . . . . . . . . . . . . . . . . . . . 30
CONTINUED ON NEXT PAGE
Tachometer Check . . . . . . . . . . . . . . . . . . . . . . . . 30
Fuel Gauge Unit Check . . . . . . . . . . . . . . . . . . . . 31
 54A-3

ON-VEHICLE SERVICE . . . . . . . . . . . . . . . . . . . . . . 46 DEFOGGER . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Room Lamp Delay-off Time Adjustment
TROUBLESHOOTING <VEHICLES WITH
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
AUTOMATIC AIR CONDITIONER> . . . . . . . . . . . 86
REAR COMBINATION LAMP . . . . . . . . . . . 47 ON-VEHICLE SERVICE . . . . . . . . . . . . . . . . . . . . . 86
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Printed Heater Check . . . . . . . . . . . . . . . . . . . . . 86
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 47 Defogger Relay Continuity Check . . . . . . . . . . . 86

REAR COMBINATION LAMP . . . . . . . . . . . . . . . . 47 DEFOGGER SWITCH . . . . . . . . . . . . . . . . . . . . . . . 87

HIGH-MOUNTED STOP LAMP . . . . . . . . . 48 SMART WIRING SYSTEM (SWS)

. . . . . . . . . . . . . . . . . . . . Refer to GROUP 54B
COLUMN SWITCH . . . . . . . . . . . . . . . . . . . . 48
RADIATOR (RADIATOR FAN MOTOR)
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 . . . . . . . . . . . . . . . . . . . . . . Refer to GROUP 14
COLUMN SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . 48
AUTOMATIC TRANSMISSION
HAZARD WARNING LAMP SWITCH . . . . 50 . . . . . . . . . . . . . . . . . . . . . . Refer to GROUP 23
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ANTI-LOCK BRAKE SYSTEM (ABS)
HAZARD WARNING LAMP SWITCH . . . . . . . . . 50 . . . . . . . . . . . . . . . . . . . . Refer to GROUP 35B
HORN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 DOOR HANDLE LATCH (DOOR LOCK)
. . . . . . . . . . . . . . . . . . . . . . Refer to GROUP 42
CIGARETTE LIGHTER . . . . . . . . . . . . . . . . . 51
DOOR GLASS-REGULATOR (POWER
ACCESSORY SOCKET . . . . . . . . . . . . . . . . 51
WINDOWS)
RHEOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 . . . . . . . . . . . . . . . . . . . . . . Refer to GROUP 42
CLOCK OR CENTER DISPLAY . . . . . . . . 53 KEYLESS ENTRY SYSTEM
. . . . . . . . . . . . . . . . . . . . . . Refer to GROUP 42
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 53
CLOCK OR CENTER DISPLAY . . . . . . . . . . . . . . 67 WINDSHIELD WIPER/WASHER
. . . . . . . . . . . . . . . . . . . . . . Refer to GROUP 51
RADIO/TAPE PLAYER . . . . . . . . . . . . . . . . . 68
REAR WIPER/WASHER
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 68
. . . . . . . . . . . . . . . . . . . . . . Refer to GROUP 51
RADIO AND CD AUTO CHANGER . . . . . . . . . . 81
SRS AIRBAG . . . . . . Refer to GROUP 52B
FRONT SPEAKERS . . . . . . . . . . . . . . . . . . . 82
HEATER . . . . . . . . . . . . . Refer to GROUP 55
REAR SPEAKERS . . . . . . . . . . . . . . . . . . . . . 82
AIR CONDITIONER . . . Refer to GROUP 55
ANTENNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
54A-4 CHASSIS ELECTRICAL - Battery

BATTERY
SERVICE SPECIFICATIONS
Item Standard value
Battery electrolyte specific gravity 1.220 - 1.290 (electrolyte temperature 20°C )

ON-VEHICLE SERVICE
ELECTROLYTE LEVEL AND SPECIFIC
OK GRAVITY CHECK

1. Check that the battery electrolyte level is between the

UPPER LEVEL and LOWER LEVEL indications.
Thermometer Caution
(1) If the battery is used with the electrolyte level
below the LOWER LEVEL indicator, there is the
danger that explosions may occur, so add water
Specific to the battery until the electrolyte level is between
gravity meter
the LOWER LEVEL and UPPER LEVEL indications.
(2) If too much water is added to make the level rise
above the UPPER LEVEL indication, the
electrolyte may leak out, so adjust so that the
electrolyte level is between the LOWER LEVEL
and UPPER LEVEL indications.
2. Use a specific gravity meter and a thermometer to measure
the specific gravity.
Standard value:
1.220 - 1.290 (electrolyte temperature 20°C)
The specific gravity of the battery electrolyte changes
according to the temperature, so the specific gravity when
the electrolyte is at a temperature of 20°C can be
calculated using the following formula.
Use the converted value to judge whether the electrolyte
is okay or not.
D20=(t- 20) ´ 0.0007+Dt
D20: Specific gravity converted to a value for electrolyte
temperature of 20C°
t: Electrolyte temperature at the time of measurement
Dt: Actual specific gravity
 CHASSIS ELECTRICAL - Battery 54A-5
CHARGING
1. Remove the battery from the vehicle.
2. The normal charging current is a value in amperes which is 1/10th of the battery capacity. If the
battery needs to be charged rapidly because of reasons such as time limitations, the maximum charging
current for rapid charging is the battery capacity expressed as an ampere value.
Battery type Capacity (5-hour rate) Normal charging current Rapid charging current
75D23 54 A 5.4 A 54 A
80D26 58 A 5.8 A 58 A
95D31 70 A 7.0 A 70 A
3. Determine when charging is finished.
D When the specific gravity of the battery electrolyte is constantly within 1.250 - 1.290 for a continuous
period of one hour or more
D When the voltage per cell during charging is 2.5 - 2.8 V constantly for a continuous period of one hour
or more
Caution
1. The battery plugs should be removed during charging.
2. The battery electrolyte level may rise and overflow from the battery during charging.
3. Explosions may occur if the battery is brought close to naked flames during charging.
4. Be careful to avoid tasks that might produce sparks or other danger while the battery is charging.
5. After charging is complete, replace the battery plugs, pour water over the battery to rinse
away any sulphuric acid, and let the battery stand to dry.
6. Charge the battery in a well-ventilated location.
7. Do not let the battery electrolyte temperature rise above approximately 45°C (approximately
55°C during rapid charging).
BATTERY TEST
Test procedure
(1) Turn on the headlamps for 15 seconds.
(2) Turn off the headlamps and let the battery stand for 2
minutes to allow the battery voltage to stabilise.
(3) Disconnect the battery cables.

NG
Measure the battery discharge voltage. Charge the battery at 5 A (constant current charging). (Refer
OK: 12.4 V or more (specific gravity 1.240) to Table 1.)

OK

(1) Connect a battery tester to the battery. Re-test

(2) Apply a load with the specified current to the battery.(Refer
to Table 1.) NG
(3) After measuring the battery voltage after 15 seconds, Replace
remove the load current.
(4) Compare the measurement value with the specified OK
minimum voltage. (Refer to Table 2.) Normal
OK: Higher than the minimum voltage
 Battery/Ignition Switch and Immobilizer
54A-6 CHASSIS ELECTRICAL - <except for 4D56>

(Table 1)
Battery type 75D23 80D26 95D31
Charging time when fully discharged [5 A constant 11 12 14
current charging] (H)
Load current (A) 260 281 311

(Table 2)
Outside air tem- 21 or 16 - 20 10 - 15 4- 9 –1 - 3 –1 - –1 –12 - –1 –18
perature (°C) more - –13
Minimum volt- 9.6 9.5 9.4 9.3 9.1 8.9 8.7 8.5
age (V)

IGNITION SWITCH AND IMMOBILIZER

<EXCEPT FOR 4D56>
SPECIAL TOOLS
Tools No. Name Application
MB991502 MUT-II Sub as- Checking the ETACS-ECU input signals
sembly

MB990784 Ornament remover Instrument panel under cover and column

cover removal

TROUBLESHOOTING
IGNITION SWITCH
The ignition switch is controlled by the Smart Wiring System (SWS), For troubleshooting procedures,
refer to GROUP 54B.
IMMOBILIZER
BASIC FLOW OF PROBLEM DIAGNOSIS
Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.
DIAGNOSIS FUNCTION
READING DIAGNOSIS CODES
The diagnosis codes can be read using the MUT-II or by using the Simple Check Diagnosis mode.
(Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points)
NOTE
Connect the MUT-II to the 16-pin diagnosis connector (black).
 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <except for 4D56> 54A-7
DIAGNOSIS CODE MEMORY ERASING PROCEDURE
Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.
INSPECTION USING SIMPLE CHECK DIAGNOSIS MODE
1. Change to Simple Check Diagnosis mode and activate switch diagnosis mode.
(Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.)
2. In this condition, the input signals for the following switches can be checked.
CHART CLASSIFIED BY DIAGNOSIS CODES
Code No. Diagnosis contents Reference
page
11 Problem related to communication with the ignition key 54A-7
12 Ignition key is not registered, or encrypted code from ignition key does not match. 54A-7

INSPECTION PROCEDURES FOR EACH DIAGNOSIS CODE

Code No. 11 Problem related to communication with the Probable cause
ignition key
When the ignition switch is at the ON position, the encrypted codes D Malfunction of ignition key
are not transmitted from the ignition key to the immobilizer-ECU. D Malfunction of immobilizer-ECU

YES
Can other keys which have been registered be used to start Replace the ignition key which cannot start the engine.
the engine?
NO
Register the ignition key.
If code No. 12 is
output
Check the diagnosis codes. To inspection procedure 12 classified by diagnosis code
(Refer to P.54A-7.)
If code No. 11 is
output
Replace the immobilizer-ECU.

Code No. 12 Ignition key is not registered, or encrypted Probable cause

code from ignition key does not match.
The ignition key has not been registered with the immobilizer-ECU. D The ignition key has not been registered
with the immobilizer-ECU.
D Malfunction of immobilizer-ECU

Register the encrypted code. OK Check the trouble symptoms.

NG

Replace the immobilizer-ECU.

54A-8 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <except for 4D56>

INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM

Trouble Symptom Inspection Reference page
procedure
No.
Communication with MUT-II is not possible. – GROUP 13B,
13C - Trouble-
shooting
Diagnosis code No. 54 is generated by the engine-A/T-ECU <6G74-A/T> or by the 1 54A-8
engine-ECU <6G74-M/T, 4M41>.
The ignition keys cannot be registered using the MUT-II. 2 54A-9
The engine does not start.(The engine cranks but does not fire.) 3 54A-9
Immobilizer-ECU power supply and earth circuit system check 4 54A-10

INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM

Inspection procedure 1
Diagnosis code No. 54 is generated by the engine- Probable cause
A/T-ECU <6G74-A/T> or by the engine-ECU <6G74-M/T,
4M41>.
The cause is probably a problem with communication between the D Malfunction of harness or connector
engine-A/T-ECU <6G74-A/T> or engine-ECU <6G74-M/T, 4M41> D Malfunction of engine-A/T-ECU
and the immobilizer-ECU. <6G74-A/T> or engine-ECU
<6G74-M/T, 4M41>
D Malfunction of immobilizer-ECU
D Malfunction of ignition key
D The ignition key has not been registered
with the immobilizer-ECU.

NG
Check the following connectors: D-202-1, D-202, E-13, Repair
D-122<6G74-A/T>, D-118<6G74-M/T>, D-112<4M41>
OK

Check the trouble symptoms.

NG

Check the harness between the engine-A/T-ECU <6G74-A/T> NG

Repair
or engine-ECU <6G74-M/T, 4M41> and the immobilizer-ECU,
and repair if necessary.
OK
NO
Is a normal diagnosis code output from the immobilizer-ECU? To Chart Classified by Diagnosis Codes (Refer to P.54A-7.)
YES
OK Check the trouble symptoms.
Immobilizer-ECU power supply and earth circuit system check
(Refer to Inspection Procedure 4.) NG

Replace the immobilizer-ECU.

NG
NG
Replace the engine-A/T-ECU <6G74-A/T> or engine-ECU Check the trouble symptoms.
<6G74-M/T, 4M41>.
 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <except for 4D56> 54A-9
Inspection procedure 2
The ignition keys cannot be registered using the MUT-II. Probable cause
The ignition key has not been registered with the immobilizer-ECU. D Malfunction of ignition key
Or that thee is a problem with the immobilizer-ECU. D Malfunction of harness or connector
D Malfunction of immobilizer-ECU

NO
Can none of the ignition keys be registered? Replace the ignition key that cannot be registered.
YES
Register the ignition key.

YES
Is a normal diagnosis code output? To Chart Classified by Diagnosis Codes (Refer to P.54A-7.)
NO

Immobilizer-ECU power supply and earth circuit system check OK Check the trouble symptoms.
(Refer to Inspection Procedure 4.) NG

Replace the immobilizer-ECU.

Inspection procedure 3
The engine does not start. Probable cause
(The engine cranks but does not fire.)
If the fuel injection does not operate, the cause is probably a problem D Malfunction of GDI system or Diesel
with the immobilizer-ECU, or it could also be a problem with the GDI fuel system
system or the DIESEL system. If an attempt has been made to start D Malfunction of immobilizer-ECU
the engine with a key that has not been properly registered, the
above symptom is a sign of normal operation.

NG
Voltage check during cranking Battery check (P.54A-4)
OK: 8V or higher

OK
YES
Is a normal diagnosis code output by the engine-A/T-ECU Refer to GROUP 13B, 13C - Troubleshooting.
<6G74-A/T> or by the engine-ECU <6G74-M/T, 4M41>?
NO
YES
Is a normal diagnosis code output from the immobilizer-ECU? To Chart Classified by Diagnosis Codes (Refer to P.54A-7.)
NO

To inspection procedures if the engine does not fire

(Refer to GROUP 13B, 13C - Troubleshooting.)
NG

Check the trouble symptoms.

NG
OK
Immobilizer-ECU power supply and earth circuit system check Check the trouble symptoms.
(Refer to Inspection Procedure 4.) NG

Replace the immobilizer-ECU.

54A-10 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <except for 4D56>

Inspection procedure 4
Immobilizer-ECU power supply and earth circuit system check

(1)NG
Measure at immobilizer-ECU connector D-60-1. Check the following connectors: D-128, D-202, D-202-1
D Ignition switch: ON OK NG
D Disconnect the connector and measure at the harness
side. Repair
(1) Voltage between terminal (1) and body earth
OK: System voltage Check the trouble symptoms.
(2) Voltage between terminal (4) and body earth
OK: Continuity NG
(2)NG
Check the harness between the engine control relay and the
Check the following connectors: D-202-1, D-202, D-30 immobilizer-ECU, and repair if necessary.
OK NG

Repair
Check the trouble symptoms.
NG

Check the harness between the immobilizer-ECU and body

earth, and repair if necessary.

IMMOBILIZER-ECU CHECK
TERMINAL VOLTAGE CHECK TABLE

Terminal Signal Inspection conditions Terminal voltage

No.
1 Immobilizer-ECU power supply Ignition switch: ON System voltage
2 - - -
3 Engine-A/T-ECU <6G74×A/T>, - -
Engine-ECU <6G74×M/T, 4M41>
4 Immobilizer-ECU earth At all times 0V
 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <except for 4D56> 54A-11
IGNITION SWITCH AND IMMOBILIZER-ECU
REMOVAL AND INSTALLATION
4

7
6

2 9

Removal steps
1. Steering wheel 4. Upper column cover (Refer to GROUP
(Refer to GROUP 37A.) 52A - Instrument Panel.)
2. Instrument panel under cover 5. Column Switch
(Refer to GROUP 52A - Instrument AA" 6. Steering lock cylinder
Panel.) 7. Ignition switch
3. Lower column cover (Refer to GROUP 8. Key Reminder Switch
52A - Instrument Panel.) 9. Immobilizer-ECU

REMOVAL SERVICE POINTS

AA" STEERING LOCK CYLINDER REMOVAL
1. Insert the key into the steering lock cylinder, and then
Lock pin turn the ignition switch to the ACC position.
2. While using a Phillips screwdriver (small) or similar tool
to push the lock pin, remove the steering lock cylinder.
54A-12 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <except for 4D56>

INSPECTION
IGNITION SWITCH CONTINUITY CHECK
With the ignition switch installed to the vehicle, disconnect
and check the ignition switch connector.
Ignition switch Terminal No.
position 1 2 4 5 6
LOCK
ACC
ON
START

KEY REMINDER SWITCH CONTINUITY CHECK

With the key reminder switch installed to the vehicle,
disconnect and check the key reminder switch connector.
Ignition key condition Terminal No.
4 6
Removed
Inserted

ENCRYPTED CODE REGISTRATION METHOD

AND RESETTING THE CODE TO THE FACTORY
SETTING
Register the encrypted code in the immobilizer-ECU and then
reset the code to the factory setting after parts have been
replaced.
Replacement part Encrypted
code
Ignition key Necessary
Ignition key ring antenna and immobilizer-ECU Necessary
Engine-ECU* Necessary

NOTE
* : If the engine-ECU is replaced, the ignition key ring antenna
and immobilizer-ECU and ignition key should be replaced
together with it.
Each engine-ECU has an individual information for
immobilizer-ECU, and the individual information is registered
in the immobilizer-ECU.
CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <except for 4D56> 54A-13
ENCRYPTED CODE REGISTRATION METHOD
If using an ignition key that has just been newly purchased,
or if the immobilizer-ECU has been replaced, you will need
to register the encrypted codes for each ignition key being
used into the immobilizer-ECU. (A maximum of eight different
encrypted codes can be registered.)
Moreover, when the immobilizer-ECU has been replaced, you
will need to use the MUT-II to register the password that
the user specifies into the immobilizer-ECU. (Refer to the
MUT-II instruction manual for instructions on using the MUT-II.)
Caution
Because registering of the encrypted codes is carried
out after all previously-registered codes have been
erased, you should have ready all of the ignition keys
that have already been registered.

1. Connect the MUT-II to the diagnosis connector.

Caution
Turn the ignition switch to the LOCK (OFF) before
connecting or disconnecting of the MUT-II.
2. Check that diagnosis code No.54 is not set by the
engine-ECU. If it is set, check according to the
Troubleshooting Procedures. (Refer to GROUP 13A -
Troubleshooting.)
3 Use the ignition key that is to be registered to turn on
the ignition switch.
4. Use the MUT-II to register the encrypted code. If you
are registering two or more codes, use the next key to
the registered to turn on the ignition switch without
disconnecting the MUT-II.
5. Turn the ignition switch to the LOCK (OFF) position.
6. Check that the engine can be started with each of the
ignition keys.
7. Check the diagnosis output from the engine-ECU, and
erase code No.54 if it appears. (Refer to GROUP 13A
- Troubleshooting.)
8. Disconnect the MUT-II. This completes the registration
operation.
54A-14 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56>

IGNITION SWITCH AND IMMOBILIZER<4D56>

SPECIAL TOOLS
Tools No. Name Application
MB991502 MUT-II Sub Checking the ETACS-ECU input signals
assembly

MB990784 Ornament remover Instrument panel under cover and column

cover removal

TROUBLESHOOTING
IGNITION SWITCH
The ignition switch is controlled by the Smart Wiring System (SWS), for troubleshooting procedures,
refer to GROUP 54B.
IMMOBILIZER
BASIC FLOW OF PROBLEM DIAGNOSIS
Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.
DIAGNOSIS FUNCTION
READING DIAGNOSIS CODES
The diagnosis codes can be read using the MUT-II or by using the Simple Check Diagnosis mode.
(Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.)
NOTE
Connect the MUT-II to the 16-pin diagnosis connector (black).
DIAGNOSIS CODE MEMORY ERASING PROCEDURE
Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.
INSPECTION USING SIMPLE CHECK DIAGNOSIS MODE
1. Change to Simple Check Diagnosis mode and activate switch diagnosis mode.
(Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.
2. In this condition, the input signals for the following switches can be checked.

CHART CLASSIFIED BY DIAGNOSIS CODES

Code No. Diagnosis contents Reference
page
11 Problem related to communication with the ignition key 54A-15
12 Ignition key is not registered, or encrypted code from ignition key does not match. 54A-15
 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56> 54A-15
INSPECTION PROCEDURES FOR EACH DIAGNOSIS CODE
Code No. 11 Problem related to communication with the Probable cause
ignition key
When the ignition switch is at the ON position, the encrypted codes D Malfunction of ignition key
are not transmitted from the ignition key to the immobilizer-ECU. D Malfunction of immobilizer-ECU
D Malfunction of harness or connector

YES
Can other keys which have been registered be used to start Replace the ignition key which cannot start the engine.
the engine?
NO
Register the ignition key.
If code No. 12 is
output
Check the diagnosis codes. To inspection procedure 12 classified by diagnosis code
(Refer to P.54A-15.)
If code No. 11 is
output
NG
Check the following connectors: D-133, D-201 Repair
OK

Check the trouble symptoms.

NG

Check the harness between the immobilizer-ECU and the NG

ignition key ring antenna. Repair

OK

Check the trouble symptoms.

NG

Replace the immobilizer-ECU.

Code No. 12 Ignition key is not registered, or encrypted Probable cause

code from ignition key does not match.
The ignition key has not been registered with the immobilizer-ECU. D The ignition key has not been registered
with the immobilizer-ECU.
D Malfunction of immobilizer-ECU

Register the encrypted code. OK Check the trouble symptoms.

NG

Replace the immobilizer-ECU.

INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM

Trouble Symptom Inspection Reference page
procedure
No.
Communication with MUT-II is not possible. – GROUP 13B,
13C - Trouble-
shooting
The ignition keys cannot be registered using the MUT-II. 1 54A-16
The engine does not start. (The engine cranks but does not fire.) 2 54A-17
Immobilizer-ECU power supply and earth circuit system check 3 54A-18
54A-16 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56>

INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM

Inspection procedure 1
The ignition keys cannot be registered using the MUT-II. Probable cause
The ignition key has not been registered with the immobilizer-ECU. D Malfunction of ignition key
Or that there is a problem with the immobilizer-ECU. D Malfunction of harness or connector
D Malfunction of immobilizer-ECU

NO
Can none of the ignition keys be registered? Replace the ignition key that cannot be registered.
YES
Register the ignition key.
YES
Is a normal diagnosis code output? To Chart Classified by Diagnosis Codes (Refer to P.54A-14.)
NO
OK
Immobilizer-ECU power supply and earth circuit system check Check the trouble symptoms.
(Refer to Inspection Procedure 3.) NG
Check the following connectors: D-133, D-33, D-222, D-28
OK NG
Check the trouble symptoms. Repair
NG
Check the harness between the immobilizer-ECU and the
diagnosis connector.

OK NG
Check the trouble symptoms. Repair
NG
Replace the immobilizer-ECU.
 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56> 54A-17
Inspection procedure 2
The engine does not start. Probable cause
(The engine cranks but does not fire.)
If the fuel injection does not operate, the cause is probably a problem D Malfunction of diesel fuel system
with the immobilizer-ECU, or it could also be a problem with the D Malfunction of immobilizer-ECU
diesel fuel system. If an attempt has been made to start the engine
with a key that has not been properly registered, the above symptom
is a sign of normal operation.

NG
Voltage check during cranking Battery check (P.54A-4)
OK: 8V or higher
OK
YES
Is a normal diagnosis code output from the immobilizer-ECU? To Chart Classified by Diagnosis Codes (Refer to P.54A-14.)

NO
To inspection procedures if the engine does not fire
(Refer to GROUP 13B, 13C - Troubleshooting.)
NG
Check the trouble symptoms.
NG
OK
Immobilizer-ECU power supply and earth circuit system check Check the trouble symptoms.
(Refer to Inspection Procedure 4.) NG
Check the following connectors: D-133, D-13, B-03
OK
Check the trouble symptoms. Repair
NG
Check the harness between the immobilizer-ECU and the fuel
cut valve controller.

OK
Check the trouble symptoms. Repair
NG
Replace the immobilizer-ECU.
54A-18 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56>

Inspection procedure 3
Immobilizer-ECU power supply and earth circuit system check

(1)NG
Measure at immobilizer-ECU connector D-60-1. Check the following connectors: D-27, D-223, D-31, D-133
D Ignition switch: ON OK NG
D Disconnect the connector and measure at the harness
side. Repair
(1) Voltage between terminal 7 and body earth Check the trouble symptoms.
OK: System voltage NG
(2) Voltage between terminal 6 and body earth
OK: System voltage Check the harness between fusible link No. 1 and the
(3) Voltage between terminal 3 and body earth immobilizer-ECU, and repair if necessary.
OK: Continuity
(2)NG
Check the following connectors: D-210, D-31, D-133
OK NG
(3)NG
Check the trouble symptoms. Repair
Check the following connectors: D-133, D-30
OK NG NG

Repair Check the harness between the ignition switch (IG1) and the
Check the trouble symptoms. immobilizer-ECU, and repair if necessary.
NG

Check the harness between the immobilizer-ECU and body

earth, and repair if necessary.

IMMOBILIZER-ECU CHECK
TERMINAL VOLTAGE CHECK TABLE

Terminal No. Signal Inspection conditions Terminal voltage

1 Diagnosis connector - -
2 - - -
3 Immobilizer-ECU earth Always 0V
4 - - -
5 Engine-ECU - -
6 Ignition switch (IG1) power supply Ignition switch : ON System voltage
7 Immobilizer-ECU power supply Always System voltage
8, 9 - - -
10 Ignition key ring antenna - -
11 Ignition key ring antenna - -
12 Diagnosis connector - -
 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56> 54A-19
IGNITION SWITCH AND IMMOBILIZER-ECU
REMOVAL AND INSTALLATION

Diagnosis connector
4

7
6

Removal steps
1. Steering wheel 4. Upper column cover (Refer to GROUP
(Refer to GROUP 37A.) 52A - Instrument Panel.)
2. Instrument panel under cover 5. Column Switch
(Refer to GROUP 52A - Instrument AA" 6. Steering lock cylinder
Panel.) 7. Ignition switch
3. Lower column cover (Refer to GROUP 8. Key Reminder Switch
52A - Instrument Panel.) 9. Immobilizer-ECU
54A-20 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56>

REMOVAL SERVICE POINTS

AA" STEERING LOCK CYLINDER REMOVAL
1. Insert the key into the steering lock cylinder, and then
Lock pin turn the ignition switch to the ACC position.
2. While using a Phillips screwdriver (small) or similar tool
to push the lock pin, remove the steering lock cylinder.

INSPECTION
IGNITION SWITCH CONTINUITY CHECK
With the ignition switch installed to the vehicle, disconnect
and check the ignition switch connector.
Ignition Terminal No.
switch posi-
tion 1 2 4 5 6
LOCK
ACC
ON
START

KEY REMINDER SWITCH CONTINUITY CHECK

With the key reminder switch installed to the vehicle,
disconnect and check the key reminder switch connector.
Ignition key condition Terminal No.
4 6
Removed
Inserted

IGNITION KEY RING ANTENNA CONTINUITY CHECK

Use a circuit tester to check the continuity between the
terminals.
CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56> 54A-21
ENCRYPTED CODE REGISTRATION METHOD
AND RESETTING THE CODE TO THE
FACTORY SETTING
Register the encrypted code in the immobilizer-ECU and then
reset the code to the factory setting after parts have been
replaced.
Replacement part Encrypted
code
Ignition key Necessary
Ignition key ring antenna and immobilizer-ECU Necessary
Engine-ECU* Necessary

NOTE
* : If the engine-ECU is replaced, the ignition key ring antenna
and immobilizer-ECU and ignition key should be replaced
together with it.
Each engine-ECU has an individual information for
immobilizer-ECU, and the individual information is registered
in the immobilizer-ECU.
ENCRYPTED CODE REGISTRATION METHOD
If using an ignition key that has just been newly purchased,
or if the immobilizer-ECU has been replaced, you will need
to register the encrypted codes for each ignition key being
used into the immobilizer-ECU. (A maximum of eight different
encrypted codes can be registered.)
Moreover, when the immobilizer-ECU has been replaced, you
will need to use the MUT-II to register the password that
the user specifies into the immobilizer-ECU. (Refer to the
MUT-II instruction manual for instructions on using the MUT-II.)
Caution
Because registering of the encrypted codes is carried
out after all previously-registered codes have been
erased, you should have ready all of the ignition keys
that have already been registered.
54A-22 CHASSIS ELECTRICAL - Ignition Switch and Immobilizer <4D56>

1. Connect the MUT-II to the diagnosis connector.

Caution
Turn the ignition switch to the LOCK (OFF) before
connecting or disconnecting of the MUT-II.
2. Check that diagnosis code No.54 is not set by the
engine-ECU. If it is set, check according to the
Troubleshooting Procedures. (Refer to GROUP 13A -
Troubleshooting.)
3 Use the ignition key that is to be registered to turn on
the ignition switch.
4. Use the MUT-II to register the encrypted code. If you
are registering two or more codes, use the next key to
the registered to turn on the ignition switch without
disconnecting the MUT-II.
5. Turn the ignition switch to the LOCK (OFF) position.
6. Check that the engine can be started with each of the
ignition keys.
7. Check the diagnosis output from the engine-ECU, and
erase code No.54 if it appears. (Refer to GROUP 13A
- Troubleshooting.)
8. Disconnect the MUT-II. This completes the registration
operation.
 CHASSIS ELECTRICAL - Combination Meter 54A-23

COMBINATION METER
SERVICE SPECIFICATIONS
Item Standard value Limit
Speedometer indication range At 20 km/h 18 - 23 –
km/h
At 40 km/h 37 - 45 –
At 80 km/h 75 - 88 –
At 120 km/h 113 - 132 –
At 160 km/h 150 - 176 –
Speedometer needle swing km/h (when driving at 35 km/h or higher) – ±3
Tachometer indication error When engine speed is 700 r/min ± 120 –
r/min
When engine speed is 2,000 r/min Petrol - 175+225 –
Diesel ±175 –
When engine speed is 3,000 r/min Petrol - 175+300 –
Diesel ± 225 –
When engine speed is 4,000 r/min Petrol - 225+375 –
Diesel ± 300 –
When engine speed is 4,750 r/min <Diesel vehicles> ± 260 –
When engine speed is 5,000 r/min <Petrol vehicles> - 225+425 –
When engine speed is 6,000 r/min <Petrol vehicles> - 225+475 –
Fuel gauge unit standard F position 3 –
resistance value W E position 110 –
Fuel gauge unit float height F position 11.9 –
mm
E position 195.2 –
Engine coolant temperature gauge unit standard resistance value W 104 ± 13.5 –
Combination meter internal 62 - 11 (IG power supply - earth) 1MW or more –
resistance value W 62 - 25 (IG power supply - earth) 1MW or more –
(Measured at connector D-38
and connector D-40) 62 - 63 (IG power supply - fuel gauge) 1MW or more –
62 - 64 (IG power supply - engine coolant 1MW or more –
temperature gauge)
63 - 11 (fuel gauge - earth) 180 –
63 - 25 (fuel gauge - earth) 180 –
64 - 11 (engine coolant temperature gauge - earth) 210 –
64 - 25 (engine coolant temperature gauge - earth) 210 –
67 - 11 (battery power supply - earth) 1MW or more –
67 - 25 (battery power supply - earth) 1MW or more –
67 - 63 (battery power supply - fuel gauge) 1MW or more –
67 - 64 (battery power supply - engine coolant 1MW or more –
temperature gauge)
54A-24 CHASSIS ELECTRICAL - Combination Meter

SEALANTS
Usage location Brand
Engine coolant temperature gauge unit Semi-drying sealant:
Threebond 1104 [0110207], Threebond 1141E
(Manufactured by Threebond)

NOTE
Numbers in [ ] indicate genuine parts numbers.
SPECIAL TOOLS
Tools No. Name Application
A MB991223 Harness set Fuel gauge simple checking
A: MB991219 A: Check harness Engine coolant temperature gauge simple
B: MB991220 B: LED harness checking
C: MB991221 C: LED harness A: For checking contact pin contact pressure
D: MB991222 adapter B: For checking the power supply
D: Probe C: For checking the power supply
B
D: For checking the power supply circuit

MB990784 Ornament remover Meter bezel removal

TROUBLESHOOTING
DIAGNOSIS FUNCTION
Input signal check procedure
1. Connect the MUT-II or a voltage meter to the diagnosis connector, and check the input. (Refer to
GROUP 00 - How to Use Troubleshooting/Inspection Service Points.)
2. The vehicle speed sensor input signal can be checked.
NOTE
If the vehicle speed sensor input signal cannot be checked using the MUT-II, the cause is probably
a malfunction of the diagnosis circuit system.
 CHASSIS ELECTRICAL - Combination Meter 54A-25
CHART CLASSIFIED BY TROUBLE SYMPTOMS
Trouble Symptom Inspection procedure Reference page
No.
Speedometer does not operate. (Other meters and gauges 1 54A-25
operate.)
Tachometer does not operate. (Other meters and gauges 2 54A-26
operate.)
Fuel gauge does not operate. (Other meters and gauges 3 54A-27
operate.)
Engine coolant temperature gauge does not operate. 4 54A-28
(Other meters and gauges operate.)
None of the meters and gauges operate. 5 54A-29

INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM

Inspection procedure 1
Speedometer does not operate. (Other meters and gauges Probable cause
operate.)
The cause is probably a malfunction of the vehicle speed sensor D Malfunction of vehicle speed sensor
input system. D Malfunction of harness or connector
D Malfunction of speedometer
D Malfunction of printed circuit board

YES
MUT-II Self-Diag Code Vehicle speed sensor circuit check (Refer to inspection
Is MPI, GDI or DIESEL diagnosis code No. 24 output? procedure 6 on P.54A-29.)
NO
NG Repair
Check the following connectors: D-01, D-222, E-13, E-113,
C-09

OK
Check the trouble symptoms.
NG
Replace the speedometer.

Check the trouble symptoms.

NG
Replace the combination meter case.
54A-26 CHASSIS ELECTRICAL - Combination Meter

Inspection procedure 2
Tachometer does not operate.(Other meters and gauges Probable cause
operate.)
The cause is probably that the ignition signal is not being input from D Malfunction of tachometer
the engine, or that there is a malfunction of the meter power supply D Malfunction of harness or connector
or earth circuit. D Malfunction of printed circuit board

YES
MUT-II Self-Diag Code Code No. 44 Ignition coil and power transistor unit system
Is MPI, GDI or DIESEL diagnosis code No. 44 output? (Refer to GROUP 13A - Troubleshooting.)
NO
NG
Check the following connectors: Repair
<6G74-A/T>D-01, D-33, E-13, B-04, D-120,
<6G74-M/T>D-01, D-33, E-13, B-04, D-117,
<4M41>D-01, D-33, E-13, D-112,
<4D56>D-01, D-33, E-13, B-07, B-07-1
OK

Check the trouble symptoms.

NG
Check the harness between the combination meter and the NG
engine-ECU. Repair
OK: Continuity
OK

Replace the tachometer.

Check the trouble symptoms.

NG
Replace the combination meter case.
 CHASSIS ELECTRICAL - Combination Meter 54A-27
Inspection procedure 3
Fuel gauge does not operate. (Other meters and gauges Probable cause
operate.)
If the speedometer and tachometer are normal, the harness from D Malfunction of fuel gauge unit
the power supply to the combination meter is normal. D Malfunction of fuel gauge and engine
coolant temperature assembly
D Malfunction of harness or connector
D Malfunction of printed circuit board

OK Replace the fuel gauge unit.

Fuel gauge circuit check
D Disconnect fuel gauge unit connector F-29.
D Use the special tool to connect a test lamp (12 V - 3.4
W) to the harness-side connector. (Refer to Figure 1.) (1)NG
Check the following connectors: D-01, D-33, D-124, F-11,
D Ignition switch: ON
F-29 OK
(1) Does the test lamp illuminate?
OK: Illuminated NG
(2) Does the fuel gauge needle swing about half-way? Check the trouble symptoms.
OK: Swings Repair
NG

(2)NG Check the harness between the combination meter and the
fuel gauge, and repair if necessary.

Combination meter fuel gauge terminal continuity check (Refer NG Replace the fuel gauge and engine coolant temperature
to P.54A-31.) assembly.
OK

Check the trouble symptoms. Check the trouble symptoms.

NG NG

Replace the combination meter case.

Fig. 1

Test lamp
(12 V/3.4 W)
54A-28 CHASSIS ELECTRICAL - Combination Meter

Inspection procedure 4
Engine coolant temperature gauge does not operate. Probable cause
(Other meters and gauges operate.)
If the speedometer and tachometer are normal, the harness from D Malfunction of engine coolant tempera-
the power supply to the combination meter is normal. ture gauge unit
D Malfunction of fuel gauge and engine
coolant temperature assembly
D Malfunction of harness or connector
D Malfunction of printed circuit board

Engine coolant temperature gauge circuit check OK Replace the engine coolant temperature gauge unit.
D Disconnect engine coolant temperature gauge unit
connector <other than 4D56>B-50, <4D56>B-07-2.
D Connect a test lamp (12V - 4W) to the harness-side (1)NG
connector. (Refer to Figure 2, 3 and Figure 5.) Check the following connectors: <other than 4D56> D-01,
D Ignition switch: ON E-13, B-50
(1) Does the test lamp illuminate? <4D56> D-01, E-13, B-07, B-07-2
OK: Illuminated OK NG
(2) Does the engine coolant temperature gauge needle swing
about half-way? Check the trouble symptoms. Repair
OK: Swings NG
(2)NG
Check the harness between the combination meter and the
engine coolant temperature gauge, and repair if necessary.

Engine coolant temperature gauge check (P.54A-32.) NG Replace the fuel gauge and engine coolant temperature
assembly.

Check the trouble symptoms.

NG

Replace the combination meter case.

Fig. 2 <6G74-GDI> Fig. 3 <4D56>

Test lamp (12 V
- 3.4 W)
Earth

Earth
Test lamp (12 V
- 3.4 W)

Connector Connector

Figure 4 <4M41>
Test lamp (12 V
- 3.4 W)

Earth

Connector
 CHASSIS ELECTRICAL - Combination Meter 54A-29
Inspection procedure 5
None of the meters and gauges operate. Probable cause
If the indicators and warning lamps are normal, then the harness D Malfunction of printed circuit board
from the power supply (IG1) to the combination meter is normal. D Malfunction of harness or connector

NG
Check the following connectors: D-27, D-233, D-218, D-01, Repair
D-03
OK

Check the harness between fusible link No. 2 and the NG Repair
combination meter.
OK

Check the harness between the combination meter and body

earth.

Check the trouble symptoms.

NG

Replace the combination meter case.

Inspection procedure 6
Vehicle speed sensor check
The vehicle speed sensor is used by the speedometer, engine-ECU and A/T-ECU.

NG
Vehicle speed sensor check (Refer to P.54A-33.) Replace
OK
(1)NG
Measure at vehicle speed sensor connector C-09. Check the following connectors: D-01, D-222, E-13, E-113,
D Disconnect the connector and measure at the harness C-09 OK NG
side.
(1) Voltage between terminal 3 and earth
OK: 4.5 V or higher
Check the trouble symptoms. Repair
(2) Continuity between terminal 2 and earth (2)NG
OK: Continuity NG
(3) Voltage between terminal 1 and earth
OK: System voltage Check the harness between the vehicle speed sensor and the
combination meter, and repair if necessary.
(3)NG

Check the following connectors: D-213, E-115, C-09 Check the following connectors: C-09
OK NG OK NG
Check the trouble symptoms. Repair Check the trouble symptoms. Repair
NG NG
Check the harness between the vehicle speed sensor and Check the harness between the vehicle speed sensor and
multipurpose fuse No. 13, and repair if necessary. body earth, and repair if necessary.

NOTE
If the trouble symptoms cannot be eliminated by the above checks, there is probably a short-circuit at
the vehicle speed sensor output side (harness, speedometer, engine-ECU or A/T-ECU), and so this should
be checked.
54A-30 CHASSIS ELECTRICAL - Combination Meter

ON-VEHICLE SERVICE
SPEEDOMETER CHECK
1. Check that the tyre inflation pressure is at the value
indicated on the tyre pressure labels.
2. Place the vehicle onto a speedometer tester.
3. Place wheel locks on front wheels.
NOTE
Wheel chocks Set the vehicle to 2WD.
4. Install a puller to the towing hook and tie-down hook
a the front of the vehicle to stop the front wheels from
moving sideways, and secure both ends of the puller
Puller to anchor plates.
5. Connect a chain or wire cable to the rear towing hook
and secure the other end to a strong, rigid support, to
stop the vehicle from moving.
6. Check that the speedometer display range is within the
Front
standard value, and that the needle swing is within the
Anchor plate limit value.
Standard value:
Speed km/h 20 40 80 120 160
Speedometer 18 - 37 - 75 - 113 - 150 -
display range 23 45 88 132 176
km/h

Limit: Needle swing (driving at a speed of 35 km/h

or higher) ± 3 km/h

TACHOMETER CHECK
Paper clip
1. Insert a paper clip into the harness-side engine speed
Engine tachometer detection terminal and connect an engine tachometer.
2. Compare the engine tachometer display and the vehicle
tachometer display at various engine speeds, and check
that the display errors are within the standard value
ranges.
Engine speed
detection terminal
 CHASSIS ELECTRICAL - Combination Meter 54A-31
Standard value:
Engine speed r/min Tachometer display error
r/min
700 ± 120
2,000 Petrol - 175+225
Diesel ± 175
3,000 Petrol - 175+300
Diesel ± 225
4,000 Petrol - 225+375
Diesel ± 300
4,750 (Diesel) ± 260
5,000 (Petrol) - 225+425
6,000 (Petrol) - 225+475

Fuel gauge unit

FUEL GAUGE UNIT CHECK
Remove the fuel gauge unit from the fuel tank.
Earth
Fuel gauge unit standard resistance value
1. Check that the resistance between the fuel gauge unit
terminal and the earth terminal is at the standard value
when the float of the fuel gauge unit is at the F position
and the E position.
Standard value:
16M0223
Float position Gauge resistance value
F position 3W
E position 110 W

2. Check that the resistance value changes smoothly when

F position
the float is moved slowly between the F position and
the E position.
E position

A Fuel gauge unit float height

Move the float and check that F position height (A) and E
position height (B) are at the standard values when the float
arm touches the stopper.
Stopper F position
B
Standard value:
E position Float position Float centre height
F position (A) 11.9 mm
E position (B) 195.2 mm
54A-32 CHASSIS ELECTRICAL - Combination Meter

Multimeter
ENGINE COOLANT TEMPERATURE GAUGE
UNIT CHECK
1. Drain the engine coolant. (Refer to GROUP 14 -
Thermometer On-vehicle Service.)
2. Remove the engine coolant temperature gauge unit.
3. Immerse the engine coolant temperature gauge unit in
water at a temperature of 70°C and check that the basic
resistance is at within the standard value range.
Standard value: 104 ± 13.5 W

4. After checking, apply specified sealant to the threaded

section of the engine coolant temperature gauge unit,
and then tighten it to the specified torque.
Semi-drying sealant: Threebond 1104 or equivalent
5. Refill the engine coolant. (Refer to GROUP 14 -
On-vehicle Service.)

11 ± 1 N×m
 CHASSIS ELECTRICAL - Combination Meter 54A-33
COMBINATION METER
REMOVAL AND INSTALLATION
Section A - A

Instrument panel

1 Clip

2
A
A A

Combination meter removal steps Vehicle speed sensor removal

1. Meter bezel 3. Vehicle speed sensor
2. Combination meter

INSPECTION
Vehicle VEHICLE SPEED SENSOR CHECK
Terminal No. speed 1. Jack up the vehicle.
sensor
2. Remove the vehicle speed sensor, and then connect a
3 - 10 kW resistance as shown in the illustration at left.
Resistance
3 - 10 kW 3. Use a multimeter to check the change in voltage between
terminals (2) and (3) when the propeller shaft is rotated
Multimeter (4 pulses per rotation).
Battery
54A-34 CHASSIS ELECTRICAL - Combination Meter

COMBINATION METER INTERNAL RESISTANCE

VALUE CHECK
D -4 0 D -3 8 Use a multimeter to measure the resistance between the
terminals.
Standard value:
Measure- Terminal name Standard val-
ment ter- ue
minal No.
62 - 11 IG power supply - Earth 1MW or more
62 - 25 IG power supply - Earth 1MW or more
62 - 63 IG power supply - Fuel gauge 1MW or more
62 - 64 IG power supply - Engine coolant 1MW or more
temperature gauge
63 - 11 Fuel gauge - Earth 180 W
63 - 25 Fuel gauge - Earth 180 W
64 - 11 Engine coolant temperature gauge - 210 W
Earth
64 - 25 Engine coolant temperature gauge - 210 W
Earth
67 - 11 Battery power supply - Earth 1MW or more
67 - 25 Battery power supply - Earth 1MW or more
67 - 63 Battery power supply - Fuel gauge 1MW or more
67 - 64 Battery power supply - Engine 1MW or more
coolant temperature gauge
 CHASSIS ELECTRICAL - Combination Meter 54A-35
DISASSEMBLY AND REASSEMBLY
14 13
15
12

5 4

10 8

7
9
11 6

2
1

Disassembly steps
1. Glass 9. Indicator lens
2. Window plate 10. Instrument panel printed circuit board
3. Speedometer 11. Replace the combination meter case
4. Tachometer 12. Indicator case
5. Fuel gauge and engine coolant 13. Combination plate A
temperature assembly 14. Combination plate B
6. Trip meter knob 15. Combination plate C
7. Indicator plate
8. Indicator prism
54A-36 CHASSIS ELECTRICAL - Headlamp Assembly

HEADLAMP ASSEMBLY
SERVICE SPECIFICATIONS
Item Standard value Limit
Headlamp emitter adjustment Low- Vertical 0.57° (10 mm) down from horizontal –
[Cut-off line (light/dark boundary beam direction line H
line) position] Horizontal Position where 15° rising portion –
direction intersects vertical line V
Headlamp illumination measurement cd – 6,400 or higher
(Corresponding to road surface 40 m in front at low beam) for each lamp

NOTES ON HANDLING HEADLAMPS AND FRONT TURN-SIGNAL LAMPS

The headlamps and front turn-signal lamps have plastic outer lenses, and so the following points
should be noted during handling.
D Do not leave the headlamps on for more than 3 minutes while they are covered with protectors,
otherwise damage may result.
D Do not mask the surfaces of the outer lenses by attaching tape.
D Do not scrape the surfaces of the outer lenses with tools that have sharp points.
D Use only the specified wax remover, and wash thoroughly with water.
D Only the specified genuine bulbs should be used.

SPECIAL TOOLS
Tools No. Name Application
MB991502 MUT-II sub as- Checking the ETACS-ECU input signals
sembly

TROUBLESHOOTING
The headlamps are controlled by the Smart Wiring System (SWS). For troubleshooting procedures, refer
to GROUP 54B.

ON-VEHICLE SERVICE
HEADLAMP AIMING ADJUSTMENT
After setting the vehicle to the following condition, adjust the
headlamp aiming.
D Check that the tyre inflation pressure is at the value
indicated on the tyre pressure labels.
D Set the vehicle to the unladen condition and park it on
a level surface.
D Have a single person (approximately 55 kg) sit in the
driver’s seat.
 CHASSIS ELECTRICAL - Headlamp Assembly 54A-37
D Run the engine at a speed of 2000 r/min to fully charge
the battery.
D Turn the headlamp level control switch to position ”0”.

LOW BEAM ADJUSTMENT

1. Adjust the low-beam light axis by following the procedure
given for the focusing-type headlamp tester which you
are using.

2. Set the tester so that the centre of the focusing lens is 1 m

directly in front of the centre of the headlamp.

Focusing-type
tester: 1 m

Centre of lamp
54A-38 CHASSIS ELECTRICAL - Headlamp Assembly

Horizontal direction 3. Turn the adjusting screws to adjust so that the deviation in
Vertical direction the centre of the high-luminance zone (main optical axis)
is at the standard value.
Standard value:
Vertical 0.57 _ (10 mm) down from horizontal line H
direction
Horizontal Position where 15 _ rising portion intersects
direction vertical line V
AX0699CA
Caution
(1) For the headlamp which is not being measured,
V disconnect that headlamp’s connector if possible
Centre of lamp
so that it does not illuminate while carrying out
the adjustment. Furthermore, make sure that the
light axis does not get shifted when re-connecting
H
the connector.
Vertical 15_ (2) The headlamps have outer lenses which are made
direction
of plastic, so if covering the lens surface with
High-lumi-
an object which does not let light pass through,
nance zone the headlamp should not be turned on for any
more than 3 minutes. In addition, do not mask
the outer lens surface by attaching tape or similar.
(3) The adjustment should always be completed by
turning the adjusting screws in the tightening
direction.

LUMINANCE MEASUREMENT
1. Place the tester receiver so that it is directly opposite
Focusing-type tester: 1 m the headlamp at the distance shown in the illustration.
2. Run the engine at a speed of 2000 r/min to fully charge
the battery.
3. Align with the centre of the lamp.
NOTE
Check that the light/dark separation line on the adjustment
screen and the low-beam cut-off line are aligned at this
time.
4. With the headlamps set to low beam, check that the
luminance satisfies the limit value.
Limit: 6,400 cd or higher for each lamp
 CHASSIS ELECTRICAL - Headlamp Assembly 54A-39
Caution
(1) For the headlamp which is not being measured,
disconnect that headlamp’s connector if possible
so that it does not illuminate while carrying out
the adjustment. Furthermore, make sure that the
light axis does not get shifted when re-connecting
the connector.
(2) The headlamps have outer lenses which are made
of plastic, so if covering the lens surface with
an object which does not let light pass through,
the headlamp should not be turned on for any
more than 3 minutes. In addition, do not mask
the outer lens surface by attaching tape or similar.

HEADLAMP BULB REPLACEMENT

Spring 1. Remove the air cleaner case (R.H. side) and the ABS
valve relay (L.H. side).
2. Disconnect the connector.
3. Remove the socket cover.
4. Remove the bulb retainer spring, and then take out the
bulb.
5. After replacing the bulb, securely connect the connector.
Caution
AX0744CA Do not touch the surface of the bulb with bare hands
or with dirty gloves.
If the surface (glass section) should become dirty,
clean it immediately with alcohol or thinner, and let
it dry thoroughly before installing it.
54A-40 CHASSIS ELECTRICAL - Headlamp Assembly

HEADLAMP ASSEMBLY
REMOVAL AND INSTALLATION

2
3

4.9 ± 0.7 N×m

4.9 ± 0.7 N×m

4.9 ± 0.7 N×m

1 AX0743CA

Headlamp removal steps Headlamp level control switch

D Radiator grille (Refer to GROUP 51 removal steps
– Front Bumper.) 2. Switch garnish
AA" 1. Headlamp Assembly 3. Headlamp level control switch

REMOVAL SERVICE POINT

Inside of
passenger AA" HEADLAMP ASSEMBLY REMOVAL
compartment
The headlamp mounting nut is the nut on the inside of the
nut which is visible inside the passenger compartment when
the front splash shield mounting is removed, and it is this
nut which should be removed.
 CHASSIS ELECTRICAL - Headlamp Assembly/Fog Lamps 54A-41
INSPECTION
HEADLAMP LEVEL CONTROL SWITCH CHECK
If the resistance value in the table shown below cannot be
obtained after operating the headlamp level control switch,
replace the headlamp level control switch.
Terminal No. to Switch position
measure resistance 0 1 2 3 4
Resistance be- 120 300 620 1,100 2,000
tween terminals (4)
and (5)

FOG LAMPS
SERVICE SPECIFICATIONS
Item Standard value
Fog lamp light axis check Illuminates to within 40 metres

SPECIAL TOOLS
Tools No. Name Application
MB991502 MUT-II sub Checking the ETACS-ECU input signals
assembly

TROUBLESHOOTING
The fog lamp are controlled by the Smart Wiring System (SWS). For troubleshooting procedures, refer
to GROUP 54B.
ON-VEHICLE SERVICE
FOG LAMP AIMING CHECK
After setting the vehicle to the following condition, adjust the
headlamp aiming.
D Check that the tyre inflation pressure is at the value
indicated on the tyre pressure labels.
D Set the vehicle to the unladen condition and park it on
a level surface.
D Have a single person (approximately 55 kg) sit in the
driver’s seat.
54A-42 CHASSIS ELECTRICAL - Fog Lamps

D Run the engine at a speed of 2,000 r/min to fully charge

the battery.
Turn on the fog lamps and check that the illumination is within
the standard value range.
Standard value: Illuminates to within 40 metres
If the value is outside the standard value range, adjust using
the adjusting screw.
NOTE
Horizontal adjustment is not possible.
Caution
1. For the headlamp which is not being measured,
disconnect that headlamp’s connector if possible so
that it does not illuminate while carrying out the
adjustment. Furthermore, make sure that the light axis
AX0698CA does not get shifted when re-connecting the
connector.
2. The adjustment should always be completed by
turning the adjusting screws in the tightening
direction.

In addition, the method of checking the light axis on a screen

106 mm (simple check) is given below.
1. Measure the centre of the fog lamp as shown in the
illustration.
2. Place the screen so that it is directly opposite the centre
of the fog lamp at a distance of 3 metres, and turn on
the fog lamps.

Screen

3m
 CHASSIS ELECTRICAL - Fog Lamps 54A-43
3. Turn the adjusting screw to adjust so that the position of the
cut-off line (light/dark border line) is as shown in the figure.
Adjusting screw NOTE
Horizontal adjustment is not possible.
Caution
(1) For the headlamp which is not being measured,
disconnect that headlamp’s connector if possible
so that it does not illuminate while carrying out
the adjustment. Furthermore, make sure that the
AX0698CA light axis does not get shifted when re-connecting
the connector.
V (2) The adjustment should always be completed by
Centre of
lamp turning the adjusting screws in the tightening
H direction.
Cut-off line Vertical
direction
1.15_ (6cm)

High-lumi-
nance zone
54A-44 CHASSIS ELECTRICAL - Fog Lamps

FOG LAMPS
REMOVAL AND INSTALLATION
5

4.9 ± 0.7 N×m

Fog lamp removal steps Fog lamp switch removal steps

1. Fog lamp bezel 5. Air outlet assembly (Refer to GROUP
2. Fog lamp 52A - Instrument Panel.)
AA" 3. Bulb 6. Fog lamp switch
4. Fog lamp bracket

REMOVAL SERVICE POINT

AA" BULB REMOVAL
Turn the bulb assembly anti-clockwise to remove the bulb.
 CHASSIS ELECTRICAL - Fog Lamps/Side Turn-signal Lamps 54A-45
Caution
1. Only the specified genuine bulbs should be used.
2. Do not touch the surface of the bulb with bare hands
or with dirty gloves.
If the surface (glass section) should become dirty,
clean it immediately with alcohol or thinner, and let
it dry thoroughly before installing it.

INSPECTION
FOG LAMP SWITCH CONTINUITY CHECK

Switch position Terminal No.

1 2 3 ILL 4 5 6
ON
FRONT

REAR
OFF

SIDE TURN-SIGNAL LAMPS

SPECIAL TOOL
Tools No. Name Application
MB990784 Ornament remover Side turn-signal lamp removal
54A-46 CHASSIS ELECTRICAL - Side Turn-signal Lamps/Room Lamp

SIDE TURN-SIGNAL LAMPS

MB990784 REMOVAL SERVICE POINTS
Side turn Use the special tool or similar tool to disengage the hook
signal lamps from the fender, and then remove the side turn-signal lamp.

Front of
vehicle

INSTALLATION SERVICE POINTS

Hook
Tab Hook the tab onto the fender panel to install the side turn-signal
Fender panel
lamp.

Front of Fender panel

vehicle

ROOM LAMP
TROUBLESHOOTING
The room lamps are controlled by the Smart Wiring System (SWS). For troubleshooting procedures,
refer to GROUP 54B.
ON-VEHICLE SERVICE
ROOM LAMP DELAY-OFF TIME ADJUSTMENT PROCEDURE
The-room lamps are controlled by the Smart Wiring System (SWS). For room lamp delay-off time adjustment
procedures, refer to GROUP 54B.
 CHASSIS ELECTRICAL - Rear Combination Lamps 54A-47

REAR COMBINATION LAMPS

SPECIAL TOOLS
Tools No. Name Application
MB991502 MUT-II Sub Checking the ETACS-ECU input signals
assembly

MB990784 Ornament remover Rear combination lamp removal

TROUBLESHOOTING
Rear combination lamps are controlled by the Smart Wiring System (SWS). For troubleshooting procedures,
refer to GROUP 54B.
REAR COMBINATION LAMPS
REMOVAL AND INSTALLATION
10

11

11
9
3
9
3 5
2 6
8 4
3

1 6
7
Rear combination lamp removal Licence plate lamp removal steps
steps 9. Licence plate lamp
1. Rear combination lamp 10. Socket assembly
2. Socket assembly 11. Bulb
3. Bulb
Rear lamp removal steps
4. Rear lamp
5. Socket assembly
6. Bulb
7. Rear lamp bracket
8. Clip
54A-48 CHASSIS ELECTRICAL - High-mounted Stop Lamp/Column Switch

HIGH-MOUNTED STOP LAMP

REMOVAL AND INSTALLATION
1 1
3 3

4 4

2 2

Removal steps
1. High-mounted stop lamp cover 3. Socket assembly
2. High-mounted stop lamp body 4. Bulb

COLUMN SWITCH
SPECIAL TOOL
Tools No. Name Application
MB990784 Ornament remover Column cover removal

REMOVAL AND INSTALLATION

2 A

4 A

Section A - A Section B - B

2
3 2
Tab Tab
1
B 1

B
1
Removal steps
1. Lower column cover (Refer to GROUP 3. Wiper and washer switch
52A - Instrument Panel.) 4. Lighting switch
2. Upper column cover (Refer to GROUP
52A - Instrument Panel.)
 CHASSIS ELECTRICAL - Column switch 54A-49
INSPECTION
LIGHTING SWITCH CONTINUITY CHECK <R.H. DRIVE
VEHICLES>

Switch position Terminal No.

3 6 7 8 9 10 11
OFF
Tail gate lamps
Headlamps
Passing lamps
Dimmer
Turn-signal lamp
R.H.
Turn-signal lamp
L.H.

COLUMN SWITCH (SWITCH BODY) CONTINUITY

CHECK
(1) Remove the lighting switch and the wiper and washer
switch.
(2) Check that there is continuity between the same terminals
Lighting Wiper and washer [terminals (3) and (11)] of each connector of the column
switch side switch side switch body which is still on the steering column.
Terminal No. Lighting switch-side connector
3 4 5 6 7 8 9 10 11
Wiper and wa- 3
sher switch-side 4
connector
5
6
7
8
9
10
11
54A-50 CHASSIS ELECTRICAL - Hazard Warning Lamp Switch

HAZARD WARNING LAMP SWITCH

SPECIAL TOOL
Tools No. Name Application
MB990784 Ornament remover Center panel removal

HAZARD WARNING LAMP SWITCH

REMOVAL AND INSTALLATION

2
3

Removal steps
1. Center panel (Refer to GROUP 52A - Instrument Panel.)
2. Bracket
3. Hazard Warning Lamp Switch

HAZARD LAMP SWITCH CONTINUITY CHECK

Switch position Terminal No.

1 2 3 ILL 4
OFF

ON
 CHASSIS ELECTRICAL - Horn/Cigarette Lighter/Accessory Socket 54A-51

HORN
INSPECTION
HORN RELAY CONTINUITY CHECK

Switch position Terminal No.

1 3 4 5
Horn relay When current is
not supplied
When current is
supplied

04Z0001

CIGARETTE LIGHTER
Spot
INSPECTION
Element
D Remove the plug and check the spot for wear.
D Check that there are no tobacco stains or foreign particles
on the element.
D Use a multimeter to check the continuity of the element.

ACCESSORY SOCKET
INSPECTION
ACCESSORY SOCKET RELAY CONTINUITY CHECK

Switch position Terminal No.

1 3 4 5
Accessory socket relay When current is
not supplied
When current is
supplied

04Z0001
54A-52 CHASSIS ELECTRICAL - Rheostat

RHEOSTAT
INSPECTION
1. Connect a test lamp (40 W) to the battery as shown
in the illustration.
2. Operate the rheostat. If the luminance of the lamp changes
steadily with no flashing, the rheostat is functioning
normally.
 CHASSIS ELECTRICAL - Clock or Center Display 54A-53

CLOCK OR CENTER DISPLAY

PRECAUTIONS WITH REGARD TO CENTER DISPLAY SERVICE WORK
When the battery is disconnected, model selection screen is shown in center display. Select the model
with “H” key or “M” key and enter the selection with “SET” key. If model selection needs to be corrected,
press the key on the left end to display the setting screen.
TROUBLESHOOTING
Vehicle Center display unit

Petrol-powered vehicles MR532880

DU-435-1

Diesel-powered vehicles MR532881

DU-435-2

Petrol-powered vehicles

“A” button

Diesel-powered vehicles

“A” button
54A-54 CHASSIS ELECTRICAL - Clock or Center Display

BEFORE REMOVING THE BATTERY

The Center display has a large amount of data unique to the vehicle in its memory. When the battery
cable is disconnected, that memory is affected as shown in the table below. Accordingly, it is necessary
to make sure that you take notes of important information before disconnecting the battery cable.

Function Input function/memory When battery cable is disconnected

Clock set on display Current time Retains data for approx. 1 hour

Vehicle model set Short (3-door models)/long (5-door Retains data for approx. 1 hour
models)

Brightness set for display Position set on display Retains data for approx. 1 hour

Unit set for trip computer km or mile, L/100km or mpg or km/L Retains data for approx. 1 hour
Average vehicle speed after reset

Average vehicle speed on display Average vehicle speed after reset Retains data for approx. 1 hour

Average fuel consumption on display Average fuel consumption after reset Retains data for approx. 1 hour

Cruising range on display Cruising range, fuel economy Retains data for approx. 1 hour

Outside temperature on display Outside temperature after the ignition Retains data for approx. 1 hour
switch is turned to the OFF(LOCK) * The outside temperature sensor
position. is located near the engine.
Therefore, incorrectly high
temperature may be displayed
when the battery cable is
reconnected within one hour.

DIAGNOSIS FUNCTION FOR CENTER DISPLAY

Center display has the following diagnosis function:
Function Contents

Service function There are the following 4 diagnosis modes available

1. Check of vehicle information The vehicle, short (3-door models)/long (5-door models) set

2. Check of LCD segments The LCD segments for display available to light on or not

3. Check of sensors Outside temperature, voltage of fuel gauge unit, system voltage, fuel amount
remains, fuel economy calculated after supply of fuel

4. Check of units connected into The units connected on display

the center display Voltage (%) on terminal for MUT-II
Vehicle speed signal sent by engine-ECU
Oscillating signal
 CHASSIS ELECTRICAL - Clock or Center Display 54A-55
SERVICE MODE FOR CENTER DISPLAY
ENTERING AND TERMINATING THE SERVICE MODE
(1) To enter the service mode, turn the ignition switch to the LOCK (OFF) position.
(2) Turn the ignition switch to the ON position while pushing “A” button, and then push “H” button twice
while pushing “A” button.
(3) Now the center display has entered the service mode. Each mode is displayed when the “SET”
button is pushed.
(4) To terminate the service mode, press any button other than the “SET” button.

1. Check of vehicle information

The following screen is displayed first when the unit enters the service mode.

Parts No. MR532881 MR532880

Vehicle type Diesel-powered vehicles Petrol-powered vehicles

Short wheelbase Long wheelbase

Display 435 - 2 435 - 1 435 - 1

CK CK SHORT CK LONG

When the “SET” button is pushed on this screen, the unit proceeds to the next service mode, Check
of LCD segments.
2. Check of LCD segments
This service mode consists of 6 display screens; the screen where all segments are illuminated,
the screen where all segments are extinguished, and four kind of screens where 1/4 of segments
are illuminated. Each screen can be changed sequentially when pushing on the “SET” button.
54A-56 CHASSIS ELECTRICAL - Clock or Center Display

All segments illuminated

All segments extiguished

1/4 of segments illuminated

When the “SET” button is pushed on this screen six times, the unit proceeds to the next service
mode, Check of Sensors.
 CHASSIS ELECTRICAL - Clock or Center Display 54A-57
3. Check of Sensors
This service mode checks outside temperature, remained fuel amount, fuel consumption, system
voltage, and fuel consumption after supply of fuel.

Outside temperature Remained fuel amount Fuel consumption

Voltage of fuel gauge unit System voltage

Fuel gauge unit characteristics (only petrol-powered vehicles)

Remained fuel amount [L] MR532880

Petrol-powered vehicles

Short wheelbase Long wheelbase

Voltage of fuel gauge unit [V]

+0.2/ - 0.2V

80 - 0.3

70 - 0.7

60 0.4 0.9

50 0.8 1.2

40 1.2 1.5

30 1.6 1.9

20 2.0 2.3

10 2.5 2.7

5 2.8 2.9

0 3.0 3.1

The voltage of fuel gauge unit depends on the system voltage.

Battery 12.0 V 13.2 V 14.4 V

Fuel gauge unit 1.8 V 2.0 V 2.2 V

The remained fuel amount, which is displayed on the screen, is less than the actual amount. This will
give the vehicle an extra amount of 5-Litre fuel in case of shortage of gasoline. Moreover, the fuel remaining
under the fuel gauge unit (pump) cannot be sucked. Therefore, there is more than 5 Litre difference
between the actual remaining fuel amount and the displayed amount of fuel.

When the “SET” button is pushed on this screen, the unit proceeds to the next service mode, Check
of Unit connected Sensors.
54A-58 CHASSIS ELECTRICAL - Clock or Center Display

4. Check of units connected into the center display

The lower column of this screen shows whether an audio unit, air-conditioner or the MUT-II is connected.
The upper column shows voltage level (%) detected at the MUT-II terminal, the vehicle speed and
clock.

Voltage level detected at MUT-II terminal (%) Vehicle speed Clock

MUT-II Air conditioner Audio unit

When the “SET” button is pushed on this screen, the unit returns to the first screen, Check of Vehicle
Information.
 CHASSIS ELECTRICAL - Clock or Center Display 54A-59
VOLTAGE AT CENTER DISPLAY UNIT TERMINALS

Terminal Input/ Signal symbol Terminal Wiring harness Trouble symptom caused by wiring
No. Output voltage (V) problem harness problem

Open Short
circuit circuit

1-4 - - - - -

5 Input ISOK Hi: System Exists Exists MUT-II cannot be used to check the
voltage engine-ECU.
Lo: 0-1

6 - - - - -

7 Input/ M-DATA Hi: 4-5 Exists Exists Audio display does not appear. Panel
Output (AUDIO) Lo: 0-1 switch cannot be operated for audio unit.
Nighttime illumination does not appear for
audio unit.

8 Input/ M-CLOCK Hi: 4-5 Exists Exists Audio display does not appear. Panel
Output (AUDIO) Lo: 0-1 switch cannot be operated for audio unit.
Nighttime illumination does not appear for
audio unit.

9 Input/ M-DATA Hi: 4-5 Exists Exists A/C display does not appear.
Output (A/C) Lo: 0-1 Outside air temperature does not appear

10 Input/ M-CLOCK Hi: 4-5 Exists Exists A/C display does not appear.
Output (AUDIO) Lo: 0-1 Outside air temperature does not appear

11-14 - - - - - -
54A-60 CHASSIS ELECTRICAL - Clock or Center Display

Terminal Input/ Signal symbol Terminal Wiring harness Trouble symptom caused by wiring
No. Output voltage (V) problem harness problem

Open Short
circuit circuit

15 Input/ K Hi: System Exists Exists Values on trip information screen (average
Output voltage vehicle speed, fuel consumption and
Lo: 0-1 cruising distance) are abnormal. Commu-
nication is impossible between the
engine-ECU and the MUT-II.

16 - - - - - -

17 Input/ M-BUSY Hi: 4-5 Exists Exists Audio display does not appear. Panel
Output (AUDIO) Lo: 0-1 switch cannot be operated for audio unit.
Nighttime illumination does not appear for
audio unit.

18 - SHIELD-GND - - - -

19 Input/ M-BUSY Hi: 4-5 Exists Exists A/C display does not appear.
Output (A/C) Lo: 0-1 Outside air temperature does not appear

20 - SHIELD-GND - - - -

21, 22 - - - - - -

23 Input EX-TEMP Exists Exists Outside air temperature does not appear.

24 Input ILL+ Hi: System Exists - Nighttime illumination does not appear for
voltage audio units.
Lo: 0-1
- Exists Blown multipurpose fuse.

25 Input ACC (ACC System volt- Exists - Screen display does not appear.
power supply) age
- Exists Blown multipurpose fuse.

26 Input +B System volt- Exists - Screen display does not appear.

age
- Exists Blown multipurpose fuse.

27 Input VSS Hi: System Exists Exists Abnormal outside air temperature ap-
voltage pears.
Lo: 0-1 (only diesel-powered vehicles)

28 - GND (earth) - Exists - Screen display does not appear.

29, 30 - - - - - -

31 - GND-TEMP Exists Exists Outside air temperature does not appear.

32 Input ILL- Exists Exists The display screen can not be dimmed.

33 Input FUEL GAUGE - Exists Abnormal cruising distance appears.

34, 35 - - - - - -

36 Input IG1 Hi: System Exists - Communication with engine-ECU is im-

voltage possible. Abnormal driving data values
appear.

- Exists Communication with engine-ECU is im-

possible. Abnormal driving data values
appear. Blown multipurpose fuse.
 CHASSIS ELECTRICAL - Clock or Center Display 54A-61
INSPECTION CHART CLASSIFIED BY TROUBLE SYMPTOMS
Related unit Trouble Symptom Inspection pro- Reference
cedure No. page

Malfunction of center No display appears after the ignition key is turned to the 1 54A-62
display, related sen- ACC position.
sors, and wiring har-
nesses Outside air temperature does not appear or abnormal 2 54A-62
outside air temperature appears.

Abnormal vehicle speed is displayed on the service 3 54A-63

mode.

Abnormal driving data are displayed: 4 54A-64

D Abnormal average fuel consumption (momentary
fuel consumption) and average vehicle speed
D Abnormal cruising distance

Clock runs fast or slow. 5 54A-64

The display screen is dim. 6 54A-65

Air conditioning display does not apper. 7 54A-66

54A-62 CHASSIS ELECTRICAL - Clock or Center Display

INSPECTION PROCEDURE 1
No display appears after the ignition key is turn to the ACC position.
NG
Check the following connector: D-03 Repair
OK
NG
Measure voltages between D-03 display connector terminal (25), Repair the fuse and wiring harness.
(26) voltage and earth.
D Ignition switch: ACC
OK: System voltage
OK
NG
Measure resistance between D-03 display connector terminal (28) Repair the wiring harness.
and earth.
OK: approx. 0 W
OK

Repair the center display unit.

INSPECTION PROCEDURE 2
Outside air temperature does not appear or abnormal outside air temperature appears.
<Vehicles without automatic air conditioner system>
NG
Check the following connector: D-03 Repair.
OK
YES YES
Is a correct outside air temperature dis- Is a correct vehicle speed displayed in End (no abnormality).
played in the service mode? the service mode?
NO NO

Go to inspection procedure 3.

OK OK
Check the wiring harness between the Replace the center display unit. End
Center Display and the outside air tem- NG
perature sensor.
NG Replace the outside air temperature
sensor.
Check the wiring harness between the
center display unit and the outside air
temperature sensor, and replace if nec-
essary.

<Vehicles with automatic air conditioning system>

NO
Select “Check of units connected into Go to inspection procedure 7.
the center display” on the service mode.
Does the symbol “AU” appear?
YES
YES
MUT-II Self-Diag code Check the outside air temperature sen-
Is A/C diagnosis code No.13 or 14 set? sor. (Refer to GROUP 55B.)
NO
NO
Is a correct vehicle speed displayed in Go to inspection procedure 3.
the service mode?
YES

Replace the center display unit.

NOTE: It is necessary to drive for a while and get accurate temperature in display if you pass a area
in which temperature is much different. It might show high temperature on display in case it is high
around sensor due to high temperature of engine after battery is exchanged, or a display unit is reinstalled.
 CHASSIS ELECTRICAL - Clock or Center Display 54A-63
INSPECTION PROCEDURE 3
Abnormal vehicle speed is displayed on the service mode.
<Petrol-powered vehicles>
NG
Check the connector: D-04 Repair.
OK
YES NG
Select “Check of units connected into Disconnect connector D-04. Disconnect MUT-II. Then check vehicle
the center display” on the service mode. Then check voltage at terminal 5 of that wiring harnesses.
Does the symbol “MU” appear? connector.
NO D Ignition switch: ON
NG: More than 80% of system volt-
age
OK: Less than that
OK

NG
Measure at center display unit connec- Check the wiring harness between the
tor D-03. center display unit and the junction
D Disconnect the connector. block, and repair if necessary.
D Voltage between terminal 36 and
body earth.
OK: (Ignition switch: ON)
System voltage.
(Ignition switch: OFF)
0 - 1V
OK
OK
Check the connections between the Replace the center display unit.
center display unit and the engine-ECU.

NG

Check the wiring harness between the

center display unit and the engine-ECU,
and repair if necessary.

<Diesel-powered vehicles>
NG
Measure at center display unit connector D-03. Check the wiring harness between the center display unit and
D Disconnect the connector. the junction block, and repair if necessary.
D Voltage between terminal 36 and body earth.
OK: (Ignition switch: ON) System voltage.
(Ignition switch: OFF) 0 - 1 V
OK
NG
Measure at center display unit connector D-03 . Check the wiring harness between the center display unit and
D Disconnect the connector. the vehicle speed sensor, and repair if necessary.
D Voltage between terminal 27 and body earth.
OK: HI: System voltage.
Lo: 0 - 1V
OK

Replace the center display unit.

54A-64 CHASSIS ELECTRICAL - Clock or Center Display

INSPECTION PROCEDURE 4
Abnormal driving data are displayed:
D Abnormal average fuel consumption (momentary fuel consumption) and average vehicle speed
D Abnormal cruising distance
NO
Are the average fuel consumption and average vehicle speed dis- Go to inspection procedure 3.1.
play correctly?
YES
NO
Does the vehicle information on displayed on the screen meet Replace the center display unit.
with the actual vehicle?
Is the vehicle type (long or short body) recognized correctly?
(Select “Check of units connected into the center display” and
“Check of vehicle information” on the service mode.)
YES
YES
Is remained fuel amount displayed correctly on service mode? End (no abnormality).
NO
NG
Measure at center display unit connector D-03. Check the wiring harness between center display unit and the
D Disconnect the connector. fuel gauge unit, and repair if necessary. (relevant units: Combination
D Voltage between terminal 33 and body earth. meter, fuel gauge unit)
OK: 0.1 - 3 V
OK

Replace the center display unit.

NOTE
(1) If the remained fuel amount is so small that the fuel gauge unit can not detect a correct amount,
incorrect cruising range may be displayed.
(2) Fuel consumption is updated each time fuel is supplied. Furthermore, the cruising range depends
on road and driving conditions.

INSPECTION PROCEDURE 5
Clock runs fast or slow.
NG
Measure at center display unit connec- Repair the fuse and wiring harness.
tor D-03.
D Ignition switch: OFF
D Voltage between terminal 26 and
body earth.
OK: System voltage
OK

YES YES
Is the symbol “CT” displayed? Does it receive a radio station on differ- Turn off the CT function.
NO ent region where has time lag?
NO

Replace the center display unit.

 CHASSIS ELECTRICAL - Clock or Center Display 54A-65
INSPECTION PROCEDURE 6
The display screen is dim.
NO NG
Does the brightness of display change Measure at center display unit connec- Repair the fuse and wiring harness.
when the lighting switch is on or off? tor D-03.
D Disconnect the connector.
YES D Voltage between terminal 24 and
body earth.

OK: 0 V (Lighting switch: off)

System voltage (Lighting
switch: ON)
OK

Replace the center display unit.

NO
Is the brightness of the center display Adjust the brightness of display on set-
set correctly? ting mode.
YES
NG
Measure at center display unit connec- Repair the wiring harness.
tor D-03.
D Disconnect the connector.
D Rheostat: max
D Voltage between terminal 32 and
body earth.
OK: Low voltage (0 - 3 V)
OK

Replace the center display unit.

54A-66 CHASSIS ELECTRICAL - Clock or Center Display

INSPECTION PROCEDURE 7
Air conditioning display is not available.
NG
Measure at center display unit connec- Check the wiring harness between the
tor D-03. center display unit and the junction
D Disconnect the connector. block, and repair if necessary.
D Voltage between terminal 36 and
body earth.
OK: System voltage (Ignition
switch: ON)
0 - 1 V (Ignition switch:
OFF)
OK
NO OK
Select “Check of units connected into Check the reoccurrence of symptom. Check the audio unit.
the center display” on the service mode. NG
Does the symbol “AU” appear?
YES
NG
Check the the wiring harnesses: Repair wiring harness.
D Between the center display and
A/C-ECU D-04, D-49
D Between the center display and
AUDIO D-04, D-49
OK
OK
Measure at center display unit connec- Replace the center display unit.
tor D-04.
D Disconnect the connector.
D Voltage between terminal 9 and
body earth.
D Voltage between terminal 10 and
body earth.
D Voltage between terminal 19 and
body earth.
OK: Hi : 4 – 5V
Lo : 0 – 1V
NG

NO
MUT-II Self-Diag code Replace the A/C-ECU.
Is the diagnosis code for A/C set?
YES
OK
Refer to GROUP 55 - A/C troubleshoot- Check the reoccurrence of symptom. END
ing. NG

Replace the center display unit.

 CHASSIS ELECTRICAL - Clock or Center Display 54A-67
CLOCK OR CENTER DISPLAY
REMOVAL AND INSTALLATION

3 4

Removal steps
1. Center panel
(Refer to GROUP 52A - Instrument Panel.)
2. Clock
3. Center display
4. Bracket
54A-68 CHASSIS ELECTRICAL - Radio/Tape Player

RADIO/TAPE PLAYER
TROUBLESHOOTING
QUICK-REFERENCE TROUBLESHOOTING CHART
Items Problem symptom Relevant chart

Noise Noise appears at certain places when travelling. A-1

Mixed with noise, only at night. A-2

Broadcasts can be heard but UKW/MW/LW has a lot of noise. A-3

There is noise when starting the engine. A-4

Some noise appears when there is vibration or shocks during A-5

travelling.

Ever-present noise. A-6

Radio When switch is set to ON, no power is available. B-1

No sound from one speaker. B-2

There is noise but no reception for UKW/MW/LW or no sound from B-3

UKW/MW/LW.

Insufficient sensitivity. B-4

Distortion on UKW/MW/LW. B-5

Too few automatic select stations. B-6

Insufficient memory (preset stations are erased). B-7

Tape player Cassette tape will not be inserted. C-1

No sound. C-2

No sound from one speaker. C-3

Sound quality is poor, or sound is weak. C-4

Cassette tape will not be ejected. C-5

Uneven revolution. Tape speed is fast or slow. C-6

Faulty auto reverse. C-7

Tape gets caught in mechanism. C-8

 CHASSIS ELECTRICAL - Radio/Tape Player 54A-69
CHART
A. NOISE
A-1 Noise appears at certain places when travelling.

NO YES
Is there a particular structure? Do the following measures eliminate OK
the noise?
YES
1. Change to a different station with
a strong signal to boost
Find out the following information resistance to interference.
2. Suppress high tones to reduce
from the user:
noise.
1. Place 3. Extend antenna completely.
2. Locality conditions (valley,
mountain, etc.) NO
3. Name and frequency of stations
affected by noise

If due to vehicle noise: If due to external noise:

It may not be possible to prevent In almost all cases, prevention on
noise if the signal is weak. the receiver side is impossible.
Weak signals especially are suscep-
tible to interference.

If there is more noise than other radios, find out the

noise conditions and the name and frequency of the
receiving stations from the user, and consult with the
service centre.
54A-70 CHASSIS ELECTRICAL - Radio/Tape Player

A-2 Mixed with noise, only at night.

The following factors can be considered as possible and a change to a different station or the
causes of noise appearing at night. appearance of a beating sound* may occur.
1. Factors due to signal conditions: Due to the Beat sound*: Two signals close in frequency
fact that long-distance signals are more easily interfere with each other, creating a repetitious
received at night, even stations that are high-pitched sound. This sound is generated
received without problem during the day may not only by sound signals but by electrical
experience interference in a general worsening waves as well.
of reception conditions. The weaker a station 2. Factors due to vehicle noise: Alternator noise
is the more susceptible it is to interference, may be a cause.

NO
Is the noise still obvious even with
the lamps OFF?
YES
YES
Do the following measures eliminate OK
the noise?
D Tune to a station with a strong
signal.
D Tune to a station with a strong YES
signal without completely Does the noise fade away when the OK
extending the antenna. vehicle harness is moved away from
the radio chassis? (if the harness is
NO not in the proper position.)
NO

If there is more noise than other radios, consult a

service centre.
 CHASSIS ELECTRICAL - Radio/Tape Player 54A-71
A-3 Broadcasts can be heard but UKW/MW/LW has a lot of noise.

(1) (2)
Noise occurs when the engine is stopped. Noise occurs when the engine in running.
YES

Do the following measures eliminate the noise? Inspect the vehicle’s noise suppressor. (Refer to A-4.)
D Tune to a station with a strong signal. YES
D Extend the antenna completely. OK
D Adjust the sound quality to suppress high tones.
NO
NO
Is the radio body earth mounted securely? Securely tighten the nuts for the
body earth.
YES
NO
Is the antenna plug properly connected to the radio? Correctly attach the antenna plug.
YES
NO
Is the antenna itself in good condition or is it properly Clean the antenna plug and earth
mounted? wire mounting area. Mount the anten-
na securely.
YES

YES
Is the noise eliminated? OK
NO

If there is more noise than other radios, consult a ser-

vice centre.
54A-72 CHASSIS ELECTRICAL - Radio/Tape Player

A-4 There is noise when starting the engine.

Noise type Conditions Cause Remedy

Sounds are in
parentheses ( ).

UKW/MW/LW: D Increasing the engine speed D Mainly due to the spark D Check or replace the
Ignition noise causing the popping sound to plugs. earth cable. (Refer to
(Popping, snap- speed up, and volume D Due to the engine noise. Fig. 1, 2, 3 and 4 on
ping, cracking, decreases. P.54-58 and 54-59.)
buzzing) D Disappears when the ignition D Check or replace the
switch is turned to ACC. noise capacitor.

Other electrical - Noise may appear as electri- Repair or replace electrical

components cal components become old- components.
er.

Static electricity D Disappears when the vehicle Occurs when parts or wiring Return parts or wiring to
(Cracking, crin- is completely stopped. move for some reason and their proper position.
kling) D Severe when the clutch is contact metal parts of the
engaged. body.

D Various noises are produced Due to detachment from the Tighten the mounting bolts
depending on the body part of body of the front hood, securely. Cases where the
the vehicle. bumpers, exhaust pipe and problem is not eliminated by
muffler, suspension, etc. a single response to one
area are common, due to
several body parts being
imperfectly earthed.

Caution passes A.C. current, impedance (resistance

1. Connecting a high tension cable to the noise against A.C.) decreases, and current flow is
filter may destroy the noise filter and should facilitated. A noise suppressing condenser
never be done. which takes advantage of this property is
2. Check that there is no external noise. Since inserted between the power line for the noise
failure caused by this may result in source and the earth. This suppresses noise
misdiagnosis due to inability to identify the by earthing the noise component (A.C. or pulse
noise source, this operation must be signal) to the body of the vehicle.
performed. 2. Coil
3. Noise prevention should be performed by The coil passes D.C. current, but impedance
suppressing strong sources of noise step rises as the number of waves increases relative
by step. to the A.C. current. A noise suppressing coil
NOTE which takes advantage of this property is
1. Capacitor inserted into the power line for the noise source,
The capacitor does not pass D.C. current, but and works by preventing the noise component
as the number of waves increases when it from flowing or radiating out of the line.

Fig. 1 <4D56> Fig. 2 <4M41>

Earth cable
Earth cable
 CHASSIS ELECTRICAL - Radio/Tape Player 54A-73
Fig. 3 <6G74-GDI> Fig. 4

Earth cable
Earth cable

A-5 Some noise appears when there is vibration or shocks during travelling.

NO
Are connectors properly connected? Ensure proper connection.
YES
NO
Does noise appear when the radio switch is turned on while Static electricity noise:
the vehicle is stopped and the radio is struck while tuned Body static electric from the shock absorber rubber bushings
away from a station? used to prevent vibration, tyres, etc. occurs because of sepa-
ration from the earth, causing a buzzing noise. Since no mea-
YES sures can be taken on the radio side, other steps should be
taken to discharge the static electricity of the vehicle body.

NO
Is the radio correctly earthed? (Is the mounting screw tight- Tighten the screw securely.
ened securely?)
YES
NO
Is the antenna correctly earthed? (If noise appears when the If rust is present at the antenna earth screw, clean and tighten
antenna is moved, this means the earth is not securely con- the earth securely.
nected.)
YES

Repair or replace radio.

A-6 Ever-present noise.

Noise is often created by the following factors, and For this reason, if there are still problems with noise
often the radio is OK when it is checked individually. even after the measures described in steps A-1
D Travelling conditions of the vehicle to A-8 have been taken, get information on the
D Terrain of area travelled through factors listed above as well as determining whether
D Surrounding buildings the problem occurs with UKW/MW/LW, the station
D Signal conditions names, frequencies, etc., and contact a service
D Time period centre.
54A-74 CHASSIS ELECTRICAL - Radio/Tape Player

B. RADIO
B-1 No power is supplied when the switch is set to ON.

YES
Is dedicated fuse No. 6 blown or is the circuit open? Replace fuse or repair harness.
NO
NO
Is the connector at the back of the radio connected properly? Connect connector securely.
YES
NO
Disconnect and check the connector at the rear of the radio. Repair harness.
Is the ACC power (12 V) being supplied to the radio?
YES

Repair or replace radio.

B-2 No sound from one speaker.

YES
Check to see if there is any sound Repair or replace radio.
when attached to another radio.
NO
YES
Remove the connector on the back It conducts electricity but is shorted Repair speaker harness.
of the radio and check the speaker out.
harness for conductance.
NO
YES
Check the speaker for conductance. Repair speaker harness and ensure
proper connection of relay connec-
NO
tors.
Repair or replace speaker.
 CHASSIS ELECTRICAL - Radio/Tape Player 54A-75
B-3 There is noise but no reception for UKW/MW/LW or no sound from UKW/MW/LW.

YES
Is the check being conducted under
special electrical field conditions?
NO Example: In an under-
ground garage or inside a
building.

YES
Is proper performance obtained when OK
the vehicle is moved?
NO
YES
Does tuning solve the problem? OK
NO
NO
Are the antenna plug and radio unit properly con- Reconnect
nected?
YES

YES
Does the problem disappear if connected to another Repair or replace radio.
radio?
NO

Replace the antenna.

B-4 Insufficient sensitivity.

YES
Is the check being conducted under
special electrical field conditions?
NO Example: In an under-
ground garage or inside a
building.

YES
Is proper performance obtained when OK
the vehicle is moved?
NO
YES
Does tuning solve the problem? OK
NO
YES
Is the problem limited to the reception of a specific Electrical field condition related
radio station from a specific position?
NO
NO
Is the antenna plug properly connected to the unit? Ensure proper connection.
YES
YES
Does the problem disappear when a different radio is Repair or replace radio.
connected?
NO

Replace the antenna.

54A-76 CHASSIS ELECTRICAL - Radio/Tape Player

B-5 Distortion on UKW/MW/LW.

Occasional YES
How much distortion is there? Distortion in the vicinity of the radio Excessive antenna input
station
Constant
NO
YES
Are the speaker cords in contact with the cone paper? Remove cords away from cone paper.
NO
YES
Remove the speakers and check for torn cone paper or for- Repair or replace speakers.
eign objects.
NO
YES
Check for deformation with speaker installed. Install speaker securely.
NO

Repair or replace radio.

B-6 Too few automatic select stations.

YES
Is the check being conducted under
special electrical field conditions?
NO Example: In an under-
ground garage or inside a
building

YES
Is proper performance obtained when OK
the vehicle is moved?
NO
NO
Is the antenna plug properly connected to the equip- Ensure proper connection.
ment?
YES
YES
Does the equipment work properly if the radio is Repair or replace radio.
changed?
NO

Replace the antenna.

 CHASSIS ELECTRICAL - Radio/Tape Player 54A-77
B-7 Insufficient memory (preset stations are erased).

YES
Is dedicated fuse No. 5 blown or is the circuit open? Replace fuse or repair harness.
NO
NO
Disconnect and check the connector at the rear of the radio. Repair harness.
Is the memory backup (battery) power being supplied?
YES

Repair or replace radio.

C. TAPE PLAYER
C-1 Cassette tape will not be inserted.

YES
Are there any foreign objects in the tape player? Remove the object(s)*1 .
NO
*1
Attempting to force a foreign object (e.g., a coin or clip, etc.)
out of the tape player may damage the mechanism. The
player should be taken to a service dealer for repair.
YES
Does the tape player work if another tape is inserted? Replace tape*2 .
NO
*2
Repair or replace tape player. Ensure that the tape label is not loose, that the tape itself is
not deformed and that the tape is tightly wound. Also, tape of
C-120 or greater length often get caught in the mechanism
and should not be used.

C-2 No sound (even after a tape has been inserted).

YES
Is dedicated fuse No. 6 blown or is the circuit open? Replace fuse or repair harness.
NO
NO
Is connector at rear of radio connected tightly? Connect connector firmly.
YES
YES
Disconnect connector at rear of radio. Is ACC power being Repair or replace tape player.
supplied to the radio?
NO

Repair harness.
54A-78 CHASSIS ELECTRICAL - Radio/Tape Player

C-3 No sound from one speaker.

YES
Clean the tape player head and check again. OK
NO
YES
Replace the tape player and check again. Repair or replace tape player.
NO
YES
Remove the connector on the back of the radio and It conducts electricity but is Repair harness.
check the speaker harness for conductance. shorted out.
NO
YES
Check the speaker for conductance. Repair harness.
NO

Repair or replace speaker.

C-4 Sound quality is poor, or sound is weak.

YES
Does the player play properly when another tape* is inserted? OK
NO *:
D Ensure that the tape label is not loose, that the
tape itself is not deformed and that the tape is
tightly wound.
D Tapes of C-120 or greater length often get caught
in the mechanism and should not be used.
YES
Does the player play properly when the tape player head is cleaned? OK
NO
YES
Is proper operation obtained when the tape player is replaced? Repair or replace tape player.
NO
Repair or replace speaker.

C-5 Cassette tape will not be ejected.

The problems covered here are all the result of also possible, and attempting to force the tape out
the use of a bad tape (deformed or not properly of the player can cause damage to the mechanism.
tightened) or of a malfunction of the tape player The player should be taken to a service dealer
itself. Malfunctions involving the tape becoming for repair.
caught in the mechanism and ruining the case are
 CHASSIS ELECTRICAL - Radio/Tape Player 54A-79
C-6 Uneven revolution. Tape speed is fast or slow.

YES
Does the player play OK if the tape*1 is changed? OK
NO
*1
Ensure that the tape label is not loose, that the tape
itself is not deformed and that the tape is tightly
wound. Also, tape of C-120 or greater length often get
caught in the mechanism and should not be used.

YES
Are there any foreign objects *2 inside the tape player? Remove foreign object(s).
NO
*2
Attempting to force a foreign object (e.g., a coin or
clip, etc.) out of the tape player may damage the
mechanism. The player should be taken to a service
dealer for repair.

YES
Is the head or capstan roller dirty? (Refer to the illustration below.) Clean.
NO
Repair or replace tape player.

Pinch roller Head Capstan roller

C-7 Faulty auto reverse.

YES
Does the player play OK if the tape* is changed? OK
NO *:
D Ensure that the tape label is not loose, that the
tape itself is not deformed and that the tape is
tightly wound.
D Tapes of C-120 or greater length often get caught
in the mechanism and should not be used.
NO
Does the problem only occur while the vehicle is being driven? Repair or replace tape player.
YES
NO
Is the tape player properly installed to the vehicle? Ensure tape player installation.
YES
Repair or replace tape player.
54A-80 CHASSIS ELECTRICAL - Radio/Tape Player

C-8 Tape gets caught in mechanism*1.

*1
When the tape is caught in the mechanism, the case
may not eject. When this occurs, do not try to force
the tape out as this may damage the tape player
mechanism. Take the cassette to a service dealer for
repair.
YES
Does the player play OK if the tape*2 is changed? Tape used is bad.
NO
*2
Ensure that the tape label is not loose, that the tape
itself is not deformed and that the tape is tightly
wound. Also, tapes of C-120 or greater length often
get caught in the mechanism and should not be used.

Repair or replace tape player.

 CHASSIS ELECTRICAL - Radio/Tape Player 54A-81
RADIO AND CD AUTO CHANGER
REMOVAL AND INSTALLATION

2
3

Radio removal steps CD auto changer removal steps

1. Center panel D Lower center panel
(Refer to GROUP 52A - Instrument (Refer to GROUP 52A - Instrument
Panel.) Panel.)
2. Radio/tape player 4. CD auto changer
3. Radio/tape player bracket 5. CD auto changer bracket
54A-82 CHASSIS ELECTRICAL - Front Speakers/Rear Speakers

FRONT SPEAKERS
REMOVAL AND INSTALLATION

2
1

4 3

Tweeter removal steps Front door speaker removal steps

1. Delta inner cover 3. Front door trim (Refer to GROUP 42.)
2. Tweeter 4. Front door speaker

REAR SPEAKERS
REMOVAL AND INSTALLATION
<Short wheelbase> <Long wheelbase>
3

1 4 3

Removal steps
1. Lower quarter trim (Refer to GROUP
52A - Instrument Panel.)
2. Rear door trim (Refer to GROUP 52A
- Instrument Panel.)
3. Rear speakers
4. Rear speaker bracket
 CHASSIS ELECTRICAL - Antenna 54A-83

ANTENNA
REMOVAL AND INSTALLATION
<VEHICLES WITH MAST ANTENNA> <VEHICLES WITH MOTOR ANTENNA>

4
5 7
6 8

1 1

2
2

10 Blower fan and motor

Mast antenna removal steps Motor antenna removal steps

D Center panel (Refer to GROUP 52A D Center panel (Refer to GROUP 52A
– Instrument Panel.) – Instrument Panel.)
1. Radio/tape player 1. Radio/tape player
(Refer to P.54-81.) (Refer to P.54-81.)
2. Scuff plate, cowl side trim (Refer to 2. Scuff plate, cowl side trim (Refer to
GROUP 52A.) GROUP 52A.)
3. Mast antenna 7. Ring nut
4. Mounting nut 8. Base
5. Base AB" 9. Motor antenna body
AA" 6. Mast antenna body 10. Motor antenna-ECU

REMOVAL SERVICE POINTS

AA" MAST ANTENNA BADY REMOVAL
Carry out the following procedure to allow the feeder cable
of the base antenna assembly for an easy installation.
1. Tie the cord with the end of the feeder cable.
2. Pull out the base antenna assembly slowly until the pipe
end appears.
3. Insert the cord into the hole of the pipe end to wrap
Cord the cord around with a plastic tape.
54A-84 CHASSIS ELECTRICAL - Antenna

Caution
Ensure that the cord is wrapped tightly to prevent
it from coming off.
4. Pull out the base antenna assembly slowly to remove.

AA" MOTOR ANTENNA BADY REMOVAL

Pull out the cord after tying it with the feeder cable of the
base antenna ass’y for an easy installation.

Cord

INSPECTION
MOTOR ANTENNA CHECK
Check the antenna for extension if the connector of the motor
antenna-ECU is disconnected, the (+) terminal of the battery
is connected to terminal No.1, and the ( - ) terminal of the
battery is connected to terminal No. 2. Check the antenna
for retraction if the connection is reversed.

Antenna Antenna MOTOR ANTENNA-ECU CHECK

retracts extends
1. Remove the motor antenna-ECU mounting bolt.
2. With the ignition switch at the ACC or the ON position,
check the voltage between the terminals during extension
or retraction of the antenna by operating the radio switch.
Direction of anten- Measurement ter- Voltage (V)
na movement minal
Rectracting 2- 8 10 - 13
Extending 8- 5 10 - 13

ANTENNA POLE REPLACEMENT

1. Remove ring nut.
Antenna pole

Ring nut
 CHASSIS ELECTRICAL - Antenna 54A-85
2. After the ignition switch is turned to the ACC or ON position,
turn on the radio and extend the antenna pole to remove
Antenna pole it with the rack cable.

Rack cable

3. Extend the antenna pole completely.

Rack cable
teeth NOTE
If there is any bend at the motor end of the rack cable,
repair the bend.
Engine
compartment 4. Face the teeth of the rack cable to the engine room side
side to push the rack cable into the motor assembly.

Rack cable

5. Rotate the teeth of the rack cable to the front of the

vehicle (905 to the right) to engage the cable with the
Rack cable motor gears.
6. If the rack cable comes off easily by pulling it out slightly,
it indicates that the rack cable does not engage with
the motor gears. In that case, carry out the
above-mentioned procedures in (3) and (4) after checking
the end of the rack cable for bend again.
Vehicle front
direction 7. Set the antenna pole perpendicular and turn off the radio
to wind the rack cable. Insert the antenna pole into the
motor antenna side corresponding with winding the rack
cable.
54A-86 CHASSIS ELECTRICAL - Defogger

DEFOGGER
TROUBLESHOOTING <VEHICLE WITH
AUTOMATIC AIR CONDITIONER>
Refer to GROUP 55B.

Voltage ON-VEHICLE SERVICE

Printed heater normal
characteristics PRINTED HEATER CHECK
A (Centre point) 1. Run the engine at a speed of 2000 r/min to fully charge
6V the battery, and then check the printed heater.
2. With the defogger switch turned on, use a multimeter
to measure the voltages of each printed heater at centre
point A on the window glass. The printed heater is okay
(+) terminal (–) terminal if 6 V is displayed.
Printed heater length 3. If a voltage of 12 V is indicated at point A, the open
circuit location is between point A and the ( - ) terminal.
Move the test bar gradually towards the ( - ) terminal to
Volt- Printed heater abnormal find the point where the voltage suddenly changes (0
age characteristics
V). The point where the voltage changes is the location
Open
of the open circuit.
circuit 4. In addition, if a voltage of 0 V is indicated at point A,
location the open circuit location is between point A and the (+)
terminal. Use the same procedure as described above
to find the point where the voltage changed to 12 V.
(+) terminal (–) terminal
Printed heater length

DEFOGGER RELAY CONTINUITY CHECK

Switch position Terminal No.
1 3 4 5
When current is
not supplied
When current is
supplied
Defogger relay

04Z0001

00009068
 CHASSIS ELECTRICAL - Defogger 54A-87
DEFOGGER SWITCH
<VEHICLE WITH MANUAL AIR
CONDITIONER>
REMOVAL AND INSTALLATION
Refer to GROUP 55A - Heater Control Assembly, A/C Switch,
Ventilation Switch.

INSPECTION
DEFOGGER SWITCH CONTINUITY CHECK
Check the battery voltage between terminal 3 and 10 while
being energized.
Switch position Terminal No.
3 10 - 11 12
OFF IND

Battery ON IND

NOTE
Defogger switch After turning the defogger switch to the ON position, check
the continuity between terminal 3 and 12 for 9 to 13 minutes.
Afterwards, the switch is turned to the OFF position.
NOTES
 Service Bulletins
Click on the applicable bookmark to select the Service Bulletin.
 SERVICE BULLETIN
QUALITY INFORMATION ANALYSIS
OVERSEAS SERVICE DEPT. MITSUBISHI MOTORS CORPORATION

SERVICE BULLETIN No.: MSB-00E54-506

Date: 2000-11-30 <Model> <M/Y>

Subject: CORRECTION OF ERRORS IN ILLUSTRATION (EC)PADERO/ 01-10
FOR HEADLAMP AIMING ADJUSTMENT MONTERO(V60,70)

Group: CHASSIS ELECTRICAL Draft No.: 00sy051817

CORRECTION INTERNATIONAL
CAR
ADMINISTRATION T.NITTA - PROJECT LEADER
OFFICE AFTER SALES SERVICE & CS PROMOTION

1. Description:
This Service Bulletin informs you that correction has been made of errors in the illustration for
headlamp aiming adjustment.

2. Applicable Manuals:
Manual Pub. No. Language Page(s)
2001 PAJERO PWJE0001 (2/2) (English) 54A-38
Workshop Manual VOL.2
2001 MONTERO PWJS0002 (2/2) (Spanish)
Workshop Manual VOL.2
54A-38 CHASSIS ELECTRICAL – Headlamp Assembly
<Incorrect> 3. Turn the adjusting screws to adjust so that the deviation
Horizontal direction
Vertical direction in the centre of the high-luminance zone (main optical
axis) is at the standard value

Standard value:
Vertical 0.57º (10 mm) sown from horizontal
direction line H
Horizontal Position where 15º rising portion
AX0699CA direction intersects vertical line V

Caution
Centre of lamp (1) For the headlamp which is not being measured,
disconnect that headlamp’s connector if possible
so that it does not illuminate while carrying out
Vertical the adjustment. Furthermore, make sure that the
direction
light axis does not get shifted when re-
High-luminance connecting the connector.
zone (2) The headlamp have outer lenses which are made
A16WO257 of plastic, so if covering the lens surface with the
headlamp should not be turned on for any more
than 3 minutes. In addition, do not mask the outer
lens surface by attaching tape or similar.
(3) The adjustment should always be completed by
turning the adjustment screws in the tightening
direction.

Vertical Horizontal
direction direction
<Correct> <Correct>

LUMINANCE MEASUREMENT
Focusing-type tester: 1m
1. Place the tester receiver so that it is directly opposite the
headlamp at the distance shown in the illustration.
2. Run the engine at a speed of 2000 r/min to fully charge
the battery.
3. Align with the centre of the lamp.
NOTE
16Z0015
Check that the light/dark separation line on the
adjustment screen and the low-beam cut-off line are
aligned at this time
4. With the headlamps set to low beam, check that the
luminance satisfies the limit value.
Limit: 6,400 cd or higher for each lamp

2
 54A-1

CHASSIS
ELECTRICAL
CONTENTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Outline of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
RV METER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Construction Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 3
RV meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
IMMOBILIZER SYSTEM . . . . . . . . . . . . . . . . . . . . . 5
GLASS ANTENNA . . . . . . . . . . . . . . . . . . . . . . . . 24
COMBINATION METER . . . . . . . . . . . . . . . . . . . . . 5 Antenna feeder cable . . . . . . . . . . . . . . . . . . . . . . . . 24
54A-2 CHASSIS ELECTRICAL - General

GENERAL
OUTLINE OF CHANGES
D Since the immobilizer-ECU location has been moved from the ignition key cylinder to near the diagnosis
connector, the removal and installation procedure has been changed.
D The troubleshooting for speedometer has been changed to the method employing simulated vehicle
speed signal input check with the MUT-II.
D Due to the adoption of an RV meter, the service adjustment procedure has been added.
D Due to the adoption of a glass antenna on the left of a quarter window glass, the removal and
installation procedure of feeder cables has been added.
The service adjustment procedures which are not described here are the same as before.

GENERAL INFORMATION
The RV meter, which displays various vehicle information has been used for some models.
By operating each function switch, including ”ADJ” and ”DISP” switches, driving information screen,
A/C information screen, environment information screen, clock information screen, and audio screen
can be called up.

RV meter RV meter
Geomagnetic Barometric air
sensor pressure sensor

Display screen
120mm x 36mm

Function
switch 1 DISP

Function Function ADJ

switch 2 switch 3

DRIVING INFORMATION A/C INFORMATION

The driving information screen displays the average The screen displays set temperature, fan air mass,
vehicle speed, average fuel efficiency, and possible rear defogger operation, compressor operation,
travel distance based on the information derived front defroster operation, and inside and outside
from the engine-ECU and the fuel gauge unit. air mode.
 CHASSIS ELECTRICAL - General 54A-3

ENVIRONMENT INFORMATION CLOCK INFORMATION

The environment information screen displays Digitally displayed clock and date are featured.
ambient temperature, direction, altitude, and When the function switch 3 on the clock display
barometric air pressure. If the ambient temperature screen is pressed for 3 seconds or longer, the time
is 3_C or lower when starting the vehicle, a frozen adjustment screen can be called up.
marking blinks and an alarm sound warns a driver.

AUDIO INFORMATION

The audio function and setting of radio, tape, and

CD are displayed.

CONSTRUCTION DIAGRAM
This system:
1. receives A/C information, such as ambient temperature sensor from the A/C-ECU and audio information
from the audio system through M-BUS.
2. receives information regarding buzzer sound and ignition switch position recognition from the RV
meter through SWS communication.
3. receives the vehicle speed data from the engine-ECU to calculate the average vehicle speed. Moreover,
this system receives the fuel injection amount data to calculate the average fuel efficiency and possible
travel distance.
4. calculates the direction of a vehicle by using the geomagnetic sensor.
5 calculates the outside air temperature by using the ambient temperature sensor.
6. measures the ambient pressure by using the barometric air pressure sensor to calculate the altitude
based on the information.
7. obtains information on remaining fuel amount required for calculating the possible travel distance
by using the fuel gauge unit.
54A-4 CHASSIS ELECTRICAL - General
 CHASSIS ELECTRICAL - Immobilizer System/Combination Meter 54A-5

IMMOBILIZER SYSTEM
REMOVAL AND INSTALLATION

1
Diagnosis connector

Immobilizer-ECU removal steps

D Lower center panel <LH> panel
(Refer to GROUP 52A - Floor console assembly)
1. Immobilizer-ECU
NOTE
On vehicles with the 4D5 engine, the ignition key registration
procedure is the same as for the 4M41 engine.

COMBINATION METER
TROUBLESHOOTING
INSPECTION PROCEDURES FOR TROUBLE SYMPTOM
Speedometer inoperative (other meters are operated) Probable cause
Failure may occur on vehicle speed sensor, harnesses, connectors, meter D Malfunction of vehicle speed sensor
assembly. D Malfunction of vehicle harness or connector
D Malfunction of combination meter

YES
MUT-II Self-Diag. Code Vehicle speed sensor circuit check
Is diagnostic code P0500 for MPI output?
NO

MUT-II Input check NO Check the following connectors:

Does the speedometer correctly operate when simulated <L.H. drive vehicles> C-01, C-29, C-130, B-03
vehicle speed signal is input? <R.H. drive vehicles> C-01, C-102, C-130, B-03
YES OK NG

Check trouble symptom. Repair

NG
Check the harness between the combination meter and the
Replace combination meter assembly. vehicle speed sensor

NG

Repair

NOTE
When vehicle speed signal is checked with MUT-II in the ETACS-ECU input signal test, drive the vehicle
with MUT-II connected to diagnostic connector. When the buzzer sounds, this test is evaluated OK.
54A-6 CHASSIS ELECTRICAL - RV Meter

RV METER
TROUBLESHOOTING
PRECAUTIONS WITH REGARD TO RV METER SERVICE WORK
PROBLEM DIAGNOSIS POINTS RELATING TO THE OVERALL SYSTEM
1. Check the connections of all related harness connectors. If any problems are found, repair the problem
location and then re - check the trouble symptoms.
2. If there are no problems with the harness connections, check the harnesses. If there are no problems
with the harnesses, replace the related unit. Make a note of the service function data at this time.
NOTE
If the cause of the problem is thought to be related to system communication, carry out
troubleshooting.
PROBLEM DIAGNOSIS POINTS FOR TROUBLE WITH SPECIAL FUNCTIONS ONLY
1. Check the connections of the harnesses connectors which are related to the special function. If any
problems are found, repair the problem location and then re - check the trouble symptoms.
2. If there are no problems with the connector connections, check the harnesses. If there are no problems
with the harnesses, replace the unit which controls that function.

RV METER UNIT OPERATING PANEL

Function
switch 1 DISP
Function
switch 2 Function switch 3 ADJ

TROUBLE DIAGNOSIS SERVICE FUNCTIONS

The RV meter is equipped with the following trouble diagnosis service functions.

Service function Contents Reference

Page
Automatic mode diagnosis checks vehicle signal information communication, audio, A/C, 54A-7
fuel information, monitor automatically whenever function
switch 1 (NEXT) is pressed.
Diagnosis mode checks version, vehicle signal, communication information (audio, 54A-9
A/C, and fuel).
History mode displays history of communication error. 54A-11
Monitor Display check mode checks the display. 54A-11
check
h k mode
d Geomagnetic check checks the geomagnetic sensor. 54A-12
mode
Altimeter adjust mode adjusts the altimeter. 54A-13
 CHASSIS ELECTRICAL - RV Meter 54A-7
1st menu of the service mode SERVICE FUNCTION STARTING
1. Turn the ignition switch to the ”LOCK” (OFF) position, and
then while pressing and holding the ”ADJ” switch, turn the
ignition switch to the ”ACC” position.
After the adjustment switch has been pressed continuous-
ly for 5 seconds or longer, the reception signal sound
(beep) will sound, and at the same time the service function
will start up and the first menu of the service mode screen
will be displayed.

2. When ADJ switch (NEXT) is pressed at the 1st menu of the

2nd menu of the service mode
oservice mode screen, the mode is switched to the 2nd
menuf the service mode screen.
When function switch 1 (MONITOR) is pressed at the
current screen, the screen mode is switched to monitor
check mode.(Refer to P.54A-11.)

AUTOMATIC MODE
1. When function switch 1 (AUTO) is pressed at the 1st menu
of the service mode screen, the mode is switched to
automatic checking mode.
At this time, a display will appear to prompt you to turn the
ignition switch to the ON position.
2. When the ignition switch is turned to the ON position,
communication and wiring check is carried out.

3. When the communication check is completed, the

(

communication and wiring check results are displayed on

the screen.
If the audio system is recognized, the applicable icon is
displayed.
Air conditioner input (Automatic, Manual or without air
conditioning) is displayed.
Fuel gauge input (OK, not connected or fuel tank full) is
displayed.

4. When function switch 1 (NEXT) is pressed at the previous

screen, the status of unit is displayed.
Item Display example
Monitor NG
Air conditioner OK
54A-8 CHASSIS ELECTRICAL - RV Meter

5. When function switch 1 (NEXT) is pressed at the previous

screen, a list of monitor check items and results is
displayed.
Item Display example Contents or conditions
Ambient OK –
temperature
Barometric OK –
pressure
Geomagnet- OK –
ic sensor
X direction,
Y direction
Engine-ECU,
g E1 Communication error
SWS, E2 Open circuit or not con-
M-BUS nected

NOTE
For diesel vehicles, E2 is normally displayed for
Engine-ECU. (meaning that it is not connected)

6 . When function switch 1 (NEXT) is pressed at the previous

screen, A/C related item list is displayed.
For vehicles without air conditioner or with a manual air
conditioner, the version is not displayed.
Item Display example
Ambient temperature sensor NG
Compressor OK

7. When function switch 1 (NEXT) is pressed at the previous

screen, the version of monitor, audio and air conditioner
is displayed.
For vehicles without air conditioner or with a manual air
conditioner, the version is not displayed.

8. When function switch 1 (NEXT) is pressed at the previous

screen, the status of vehicle signal is displayed.

Item Display example Contents or conditions

Illumination OFF Conditions of illumination
Ignition key IG Ignition switch position
position
Voltage 12V Power supply voltage
CHASSIS ELECTRICAL - RV Meter 54A-9
Item Display example Contents or conditions
VSS XX km/h Speed on basis of vehicle
speed pulse

9. When function switch 1 (NEXT) is pressed at the previous

screen, the displaying the message ”Automatic diagnosis
finished.”

DIAGNOSIS MODE
1. From the 1st menu of the service mode screen, press
function switch 2 (DIAG) to display diagnosis mode.
2. The following displays appear when the various function
switches are pressed.

(1) When function switch 1 (VER) is pressed, the version

of monitor and air conditioner is displayed.

(2) When function switch 2 (VEHICLE) is pressed, the vehicle

signal condition is displayed.
54A-10 CHASSIS ELECTRICAL - RV Meter

(3) When function switch 3 (COM) is pressed, the results

are displayed after communication and wiring check
is carried out.
If the audio system is recognized, the icon is displayed.
Air conditioner input (Automatic, Manual or without
air conditioning) is displayed.
Fuel gauge input (OK, not connected or fuel tank
full) is displayed.

D When function switch 1 ( B ) at the previous screen,

the status of unit is displayed.

D When function switch 1 ( B ) at the previous screen,

the status of monitor is displayed.
Item Display example Contents or conditions
Ambient OK –
temperature
Barometric OK –
pressure
Geomagnet- OK –
ic sensor
X direction,
Y direction
Engine-ECU,
g E1 Communication error
SWS, E2 Open circuit or not con-
M-BUS nected

NOTE
For diesel vehicles, E2 is normally displayed for
Engine-ECU. (meaning that it is not connected)

D When function switch 1 ( B) at the previous screen,

the status of monitor is displayed. A/C related item
list is displayed.
For vehicles without air conditioner or with a manual
air conditioner, the version is not displayed.
Item Display example
Ambient temperature sensor NG
Compressor OK
CHASSIS ELECTRICAL - RV Meter 54A-11
HISTORY MODE
(1) When function switch 3 (HISTORY) is pressed at the 1st menu
of the service mode screen, the mode is switched to history
mode.
Item Display example CONTENTS
Engine-ECU, 000 No. of communica-
SWS, M-BUS tion errors
D When function switch 1 (CLEAR) is pressed, the number
of errors is erased.

(2) When the function switch 2 ( B ) is pressed, the mode is

switched to the 2nd menu of history mode.
Item Display example CONTENTS
Amb.Temp, 000 No. of communica-
Barom, tion errors
Geomag X.Y

MONITOR CHECK MODE

Display check mode
1. When function switch 1 (MONITOR ) is pressed at the 2nd
menu of the service mode screen, the mode is switched to
monitor check mode.
The following displays appear when the various function
switches are pressed.

D When function switch 1 (DISP) is pressed, the color

bar is displayed.
54A-12 CHASSIS ELECTRICAL - RV Meter

D When function switch 2 (GRAY) is pressed, the grey

scale screen is displayed.

D When function switch 3 (WHITE) is pressed, the white

screen is displayed.

Geomagnetic check mode

1. When function switch 1 (MONITOR) is pressed at the 2nd
menu of the service mode screen, the mode is switched to
monitor check mode.
The following displays appear when the various function
switches are pressed.

2. When function switch 2 (COMP) is pressed at the previous

screen, the mode is switched to geomagnetic sensor mode.
D At geomagnetic sensor mode, outputs in X- and Y-axes
of the geomagnetic sensor, the circular bearing coordinate,
and the radius are displayed.
If both values of the sensor (X, Y) are outside the
range between 450 and 580, there is a high possibility
of geomagnetisation and the screen displays a
message of degeomagnetisation request.
For degeomagnetisation, refer to P.54A-15.

D If both values of the sensor (X, Y) are input within

the range between 450 and 580 for one second
or longer continuously, the axes are displayed.
CHASSIS ELECTRICAL - RV Meter 54A-13
D When function switch 1 (CAL.COMP) is pressed at
the previous screen, a message of rotation
compensation is displayed.
For the method of magnetization compensation by
rotation, refer to P.54A-14.

Altimeter adjust mode

When function switch 3 (ALTI) is pressed at the monitor check

mode.
The following displays appear when the various function switches
are pressed.

The altitude can be corrected as follows using the function keys.

D When function switch 2 ( A ) is pressed, the altitude
is corrected downwards, and after approximately 5
seconds, the calibration results are displayed in the
altitude calibration column.
D When function switch 3 ( " ) is pressed, the altitude
is corrected upwards, and after approximately 5
seconds, the calibration results are displayed in the
altitude calibration column.
D When ”ADJ” switch (BACK) is pressed, the mode
is switched to monitor check mode screen.

CANCELLING SERVICE MODE

At the 1st menu of the service mode screen, press ”DISP”
switch (END) , or turn the ignition switch to the ”LOCK” (OFF)
position to cancel service mode.
54A-14 CHASSIS ELECTRICAL - RV Meter

MANUAL GEOMAGNETISATION CALIBRATION

The RV meter automatically conducts geomagnetisation
calibration by sampling direction data while the vehicle is
normally driving. The calibration can be done manually at
any time.

1. Press function switch 3 for three seconds or more during

the environment information screen to call up the screen
as shown in the illustration .

2. When function switch 3 (CAL.COMP) is pressed, a

message of urging geomagnetisation calibration is
displayed.

3. Drive around the vehicle.

NOTE
When driving around the vehicle to correct the sensor,
select a safe and open area where there are no structures
exist such as the high-tension line and the iron bridge
that affect the geomagnetic sensor in circumference.
 CHASSIS ELECTRICAL - RV Meter 54A-15
4. A message of completing geomagnetisation calibration is
displayed.
NOTE
If the following switches are pressed before completion of
calibration, the system cancels calibration and use the
previously corrected data.
D When pressing ”DISP” and ”ADJ” switches
D When pressing function switch 3 switch (CANCEL)
D When operating auto A/C and audio
D When turning the ignition switch to the “OFF”
(LOCK)position

Example: Commercial demagnetiser Degeomagnetisation and calibration method

1. Demagnetise the body using a commercial demagnetiser.

2. While keeping the distance between the tip of

Demagnetiser demagnetiser and the roof panel to approx. 5 cm, move the
demagnetiser slowly with a sweeping manner on the
rear-half surface of roof panel.
Caution
If the tip of demagnetiser touches the roof panel, the
magnetising condition of body becomes worse to the
contrary. Absolutely avoid this.
Roof panel Front of vehicle 3. Slowly draw the demagnetiser apart from the body. Turn
Approx. 5 cm
OFF the switch of demagnetiser when it is apart from the
body more than 50 cm.
Caution
If the demagnetiser is turned OFF near the body or
it is suddenly moved away from the body, the
magnetising condition of body becomes worse to the
contrary. Absolutely avoid these.
4. After degeomagnetisation, geomagnetisation calibration
is carried out (Refer to P.54A-14.)
54A-16 CHASSIS ELECTRICAL - RV Meter

RV METER TERMINAL VOLTAGES

D-40 D-39

Termi- Input/out-
p Signal
g sym-
y Terminal Harness problem Trouble symptoms
y p when there is a
nal No. putt b l
bol voltage
lt Open short-cir- h
harness problem
bl
(V)
circuit cuit
4-1 – – – – – –
5 Input ISOK (MUT- Hi:System Exists Exists Communication between the
II data sig- voltage MUT-II and the engine-ECU
nal) Lo:0 - 1 <Diesel vehicles> or engine-
A/T-ECU <petrol vehicles> is not
possible.
6 Input/out- DATA Hi:System Exists Exists D Switch operating sound (buzzer)
put (ETACS voltage does not sound.
SWS data Lo:0 - 1 D Daytime/nighttime mode does
signal) not change in conjunction with
the tail gate lamps.
D Indicators (buttons, illumination
panel) do not illuminate.
7 Input/out- M-DATA(AU- Hi:4 - 5 Exists Exists D Audio information does not
put DIO) Lo:0 - 1 appear on the screen.
(M-BUS data
signal)
8 Input/out- M- Hi:4 - 5 Exists Exists D Audio information does not
put CLOCK(AU- Lo:0 - 1 appear on the screen.
DIO)
M-BUS (C
(

lock signal)
9 Input/out- M- Hi:4 - 5 Exists Exists D Air conditioner information does
put DATA(A/C) Lo:0 - 1 not appear on the screen.
(M-BUS data D Ambient temperature is not
signal) displayed.
10 Input/out- M- Hi:4 - 5 Exists Exists D Air conditioner information does
put CLOCK(A/C) Lo:0 - 1 not appear on the screen.
M-BUS (C
( D Ambient temperature is not
lock signal) displayed.
 CHASSIS ELECTRICAL - RV Meter 54A-17
Termi- Input/out-
p Signal
g sym-
y Terminal Harness problem Trouble symptoms
y p when there is a
nal No. putt b l
bol voltage
lt Open short-cir- h
harness problem
bl
(V)
circuit cuit
11 - 14 – – – – – –
15 Input/out- K (engine Hi: Sys- Exists Exists D Wiring communication error
put K-LINE tem volt- D Communication between the
signal) age engine-A/T-ECU <Petrol ve-
Lo:0 - 1 hicles> is not possible.
D Abnormal driving information
numerical display
16 – – – – – –

17 Input/out- M-BUSY Hi:System Exists Exists D Audio information does not

put (AUDIO) voltage appear on the screen.
Lo:0 - 1
18 – SHIELD- – – – –
EARTH
(AUDIO)
19 Input/out- M-BUSY Hi:System Exists Exists D Air conditioner information does
put (A/C) voltage not appear on the screen.
Lo:0 - 1 D Ambient temperature is not
displayed.
20 – SHIELD- – – – –
EARTH
22 - 21 – – – – – –
23 Input Ambient – Exists Exists DAmbient temperature is not
temperature displayed.
sensor
24 Input ILL + (Light- Hi:System Exists Exists Does not illuminate.
ing switch) voltage
Lo:0 - 1
25 Input ACC (ACC System Exists – Screen does not appear. No
p p
power sup- g
voltage operations are possible.
ply)
l ) – Exists Blown multi-purpose fuse
26 Input +B System Exists – Screen does not appear. No
g
voltage operations are possible.
– Exists Blown multi-purpose fuse
27 Input VSS (Vehicle Hi:System Exists Exists D Abnormal “Distance km after
speed pulse voltage replacement” display in mainte-
signal) Lo:0 - 1 nance screen
D Switches which are not
supposed to operate during
driving do operate.
(Example:clock adjustment
screen, maintenance settings,
etc.)
D Ambient temperature display is
abnormally high.
28 – Earth – Exists – Screen does not appear.
54A-18 CHASSIS ELECTRICAL - RV Meter

Termi- Input/out-
p Signal
g sym-
y Terminal Harness problem Trouble symptoms
y p when there is a
nal No. putt b l
bol voltage
lt Open short-cir- h
harness problem
bl
(V)
circuit cuit
29 - 30 – – – – – –
31 – EARTH – – – –
(TEMP)
32 – ILL - (illumi- – Exists Exists Unable to adjust illumination lamp
nation lamp
adjustment
signal)
33 Input FUEL 0-3 Exists Exists –
GAUGE
34 - 36 – – – – – –

CHART CLASSIFIED BY TROUBLE SYMPTOMS

Related unit Trouble Symptom Inspection Refer-
procedure ence
No. page
Malfunction of RV meter No system operations can be carried out. 1 54A-18
System voltage drop warning screen appears. 2 54A-18
Ambient temperature does not display normally. 3 54A-19
Compass does not display normally. 4 54A-20
Altimeter does not display normally. 5 54A-21
Air conditioner information does not display normally. 6 54A-21
Audio information does not display normally. 7 54A-22

INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM

Inspection procedure 1
No system operations can be carried out.

NG
Check the following connectors: Repair
<L.H.drive vehicles> D-27, D-223, D-31, D-39
<R.H.drive vehicles> D- 27, D- 33, D- 39
OK
NG
Check the trouble symptoms. Replace the RV meter.

Inspection procedure 2
System voltage abnormality screen appears.

NO
Does the voltage abnormality screen appear immediately End
after the ignition switch is turned to the ACC position?
YES
OK
Measure at RV meter connector D-39. Malfunction of RV meter voltage judgment circuit
D Connector disconnected
D Voltage between terminal (25) and body earth
OK: System voltage
Replace the RV meter.
NG

Replace the battery.

 CHASSIS ELECTRICAL - RV Meter 54A-19
Inspection procedure 3
Ambient temperature does not display normally.

<Vehicles with automatic A/C>

Carry out a service function wiring NO MUT-II diagnosis code NO Check the following connec-
check. Is A/C diagnosis code No. 13 or No. tors: D-40, D-131
Is the M-BUS signal normal? 14 output?
NG
YES YES OK
Repair
Ambient temperature sensor check
(Refer to GROUP 55B.)

Carry out a service function wiring NG Measure at RV meter connector D-40.

Check the harness between the RV D Connector disconnected
check. meter and the ETACS-ECU, and
Is the SWS signal normal? D Voltage between terminal (9) and
repair if necessary. body earth
OK D Voltage between terminal (10) and
body earth
Check the harness between the NG D Voltage between terminal (19) and
Measure at RV meter connector D-39. A/C-ECU and the RV meter, and body earth
D Connector disconnected repair if necessary. OK: Hi: 4 - 5 V
D Voltage between terminal (27) and Lo: 0 - 1 V
body earth
OK: Hi: System voltage NG OK
Lo: 0 - 1 V Replace the RV meter.

OK Replace the RV meter.

Check the harness between the RV

meter and the vehicle speed sensor,
and repair if necessary.

<Vehicles without automatic A/C>

Carry out a service function wiring NO Ambient temperature sensor check NO
check. (Refer to GROUP 55A.) Replace
Is the ambient temperature sensor
signal normal? YES
YES NO
Check the following connectors: Repair
A - 30, D-27, D- 39

Carry out a service function wiring NG Check the harness between the RV
check. meter and the ETACS-ECU, and repair if
Is the SWS signal normal? necessary.
OK

NG
Measure at RV meter connector D-39. Replace the RV meter.
D Connector disconnected
D Voltage between terminal (27) and
body earth
OK: Hi: System voltage
Lo: 0 - 1 V

OK

Check the harness between the RV

meter and the vehicle speed sensor,
and repair if necessary.
54A-20 CHASSIS ELECTRICAL - RV Meter

Inspection procedure 4
Compass does not display normally.

OK
Carry out a geomagnetic sensor End (NO abnormality)
mode check in service mode.
NG

NO YES
Does the location have stable Is operation normal when the vehicle End (NO abnormality)
geomagnetism? is moved to a location with stable
geomagnetism?
YES
NO

YES YES
Is a carrier antenna with a magnet Does operation return to normal End (NO abnormality)
installed to the vehicle, or is there a when the magnet or metal is
magnet or other metal near the RV removed?
meter?
NG
NO OK
Carry out a geomagnetic sensor End (NO abnormality)
mode check in service mode. Does
operation return to normal if
degaussing or calibration is carried
out?
NO
Replace the RV meter.
 CHASSIS ELECTRICAL - RV Meter 54A-21
Inspection procedure 5
Altimeter does not display normally.

Carry out an altitude calibration mode check in service OK End (No abnormality)
mode.
NG

Replace the RV meter.

Inspection procedure 6
Air conditioner information does not display normally.

Carry out a service function (1) Measure the wave pattern at RV meter OK Replace the RV meter.
communication and wiring check. One connector D-40.
of the following M-BUS outputs will D Connector disconnected
appear. D Voltage between terminal (9) and
(1) E1 (Communication error) body earth
(2) E2 (Open circuit or short-circuit) D Voltage between terminal (10) and
(3) OK body earth
D Voltage between terminal (19) and
(3) (2) body earth
OK: Hi: 4 - 5 V
Lo: 0 - 1 V
NG
Check the following
connectors: D-40, D-131 NG
Measure the wave pattern at A/C-ECU Malfunction of A/C-ECU
NG connector D-131.
OK D Connector disconnected
D Voltage between terminal (6) and
Repair body earth
D Voltage between terminal (16) and
body earth
Check the harness between D Voltage between terminal (17) and
the RV meter and the body earth
A/C-ECU, and repair if OK: Hi: 4 - 5 V
necessary. Lo: 0 - 1 V
OK

NO
MUT-II Self-diag code Replace the RV meter.
Is A/C diagnosis code output?
YES

Refer to GROUP 55B - A/C Check the trouble symptoms.

Troubleshooting.
54A-22 CHASSIS ELECTRICAL - RV Meter

Inspection procedure 7
Audio information does not display normally.

Carry out a service function (1) Measure the wave pattern at RV meter OK
Replace the RV meter.
communication and wiring check. One connector D-40.
of the following M-BUS outputs will D Connector disconnected
appear. D Voltage between terminal (7) and
(1) E1 (Communication error) body earth
(2) E2 (Open circuit or short-circuit) D Voltage between terminal (8) and
(3) OK body earth
D Voltage between terminal (17) and
(3) (2) body earth
OK: Hi: 4 - 5 V
Lo: 0 - 1 V
NG

Check the harness between the RV

meter and the radio and tape, CD player,
and repair if necessary.
OK
NG
Check the trouble symptoms. Malfunction of radio and tape, CD
player
NO
Is error message “004” shown? Replace the RV meter.
YES

Replace the radio and tape, CD

player

NOTE:
The contents of error messages shown in the audio display screen are as follows:
Error message Location and cause of malfunction
EJECT A magazine for CD changer is not inserted.
NO DISC CD is not inserted.
ERROR 001 Program error in audio
ERROR 002 Error in CD disk
ERROR 003 Mechanical error in audio system
ERROR 004 Communication error in audio system and RV meter, power supply error in audio
system, and other errors
ERROR HOT Heat protection for audio system
 CHASSIS ELECTRICAL - RV Meter 54A-23
RV METER
REMOVAL AND INSTALLATION

3
2

Removal steps
1. Center panel
(Refer to GROUP 52A - Instrument Panel.)
2. RV meter
3. Bracket
54A-24 CHASSIS ELECTRICAL - Glass Antenna

GLASS ANTENNA
ANTENNA FEEDER CABLE
REMOVAL AND INSTALLATION

In case of L.H. drive vehicles

In case of R.H. drive vehicles

Removal steps
D Cowl side trim, front pillar, center pillar
trim, quarter trim (Refer to GROUP 1. Antenna feeder cable
52A.) D Instrument Panel
D Head lining (Refer to GROUP 52A)
2. Cable band
 Service Bulletins
Click on the applicable bookmark to select the Service Bulletin.
 SERVICE BULLETIN
QUALITY INFORMATION ANALYSIS
OVERSEAS SERVICE DEPT. MITSUBISHI MOTORS CORPORATION

SERVICE BULLETIN No.: MSB-01E54-511

Date: 2002-06-07 <Model> <M/Y>

Subject: ADDITION OF DESCRIPTIONS TO IMMOBILIZER (EC) 01-10
SYSTEM PAJERO/MONTERO
(V10-V40, V60-V70)
Group: CHASSIS ELECTRICAL Draft No.: 01AL033 (EC)
MONTERO SPORT/
PAJERO SPORT
(K80W, K90W)
CORRECTION INTERNATIONAL
(EC)L200
CAR
ADMINISTRATION T.Inoue - Manager (K60-K70)
OFFICE SERVICE PUBLICATION

1. Description:
This Service Bulletin informs you of an addition of descriptions to the immobilizer system.

2. Applicable Manuals:
Manual Pub. No. Language Page(s)
’02 PAJERO PWJE0001-B (English) 54A-2
Workshop Manual chassis SUPPLEMENT PWJT0008R (CD-ROM) -
PWJT0008R-B (CD-ROM)
’02 PAJERO SPORT PWJE9812-C (English) 54-1
Workshop Manual chassis SUPPLEMENT PWJS9613-C (Spanish)
PWJT9818R-C (CD-ROM) -
’02 L200 PWTE96E1-E (English) 54-1
Workshop Manual chassis SUPPLEMENT PWTS96E1-E (Spanish)
PWTF96E1-E (French)
PWTG96E1-E (German)
PAJERO PWJT1001R (CD-ROM) 54-1
Workshop Manual chassis SUPPLEMENT
’01 PAJERO PYJE0001 (English) 7-5
Technical Information Manual PWJT0008R (CD-ROM) -
PWJT0008R-B (CD-ROM)
3. Details: ’02 PAJERO Workshop Manual chassis SUPPLEMENT
54A-2 CHASSIS ELECTRICAL – General

GENERAL
OUTLINE OF CHANGES

• Since the immobilizer ECU location has been moved from the ignition key cylinder to near the diagnosis
connector, the removal and installation procedure has been changed.
• The troubleshooting for speedometer has been changed to the method employing simulated vehicle
speed signal input check with the MUT-II.
• Due to the adoption of an RV meter, the service adjustment procedure has been added.
• Due to the adoption of a glass antenna on the left of a quarter windows glass, the removal and
installation procedure of feeder cables has been added.
The service adjustment procedures which are not described here are the same as before.

GENERAL INFORMATION

The RV meter, which displays various vehicle information has been used for some models.
By operating each function switch, including “ADJ” and “DISP” switches, driving information screen, A/C
information screen, environment information screen, clock information screen, and audio screen can be
called up.

RV meter
RV meter Geomagnetic sensor
Barometric air pressure sensor

Display screen
120×36 mm

Function
switch 1 DISP

Function switch 2 ADJ

AX1410CA
Function switch 3
ACX01272

Driving information A/C INFORMATION

10022CA 10023CA

The driving information screen displays the average The screen displays set temperature, fan air mass,
vehicle speed, average fuel efficiency, and possible rear defogger operation, compressor operation, front
travel distance based on the information derived from defroster operation, and inside and outside air mode.
the engine-ECU and the fuel gauge unit.

<Added>
See the following page.

2
<Added>

• With change in the immobilizer system, the ignition

Punch mark
key for the 2001 and earlier model year cars is not
interchangeable with the ignition key for the 2002
model year cars. (A punch mark is provided on both
sides of the ignition key for the 2002 and later model
year cars.)
• When the engine-ECU or engine-A/T ECU has been
replaced, replacement of the ignition key will become
A10335AU unnecessary.

Item Engine-ECU Immobilizer-ECU Ignition key

Engine-A/T ECU
When replacing engine- - Replacement required Replacement not required
ECU, engine-A/T-ECU and re-registration are
required

3
 54A-1

CHASSIS
ELECTRICAL
CONTENTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Rear Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Outline of Changes . . . . . . . . . . . . . . . . . . . . . . . . . 2
SIDE STEP ILLUMINATION LAMP . . . . . . . . . . 6
FOG LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
On-vehicle Service . . . . . . . . . . . . . . . . . . . . . . . . . 2 Side Step Illumination Lamp . . . . . . . . . . . . . . . . 9
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Side Step Illumination ECU . . . . . . . . . . . . . . . . 10

REAR LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
54A-2 CHASSIS ELECTRICAL - General/Fog Lamps

GENERAL
OUTLINE OF CHANGES
The service procedure has been either changed or established as follows. The other service procedures are
the same as before.
D Since the shape of fog lamp was changed to circle, the headlamp aiming procedure has been changed.
D Since the rear lamp has been changed, the service procedure has been changed.
D Due to the addition of side step illumination lamp, the service procedure has been established.

FOG LAMPS
ON-VEHICLE SERVICE
FOG LAMP AIMING
Carry out aiming adjustment after the vehicle is placed in the
following condition.
D Check that tire pressure is kept at the value indicated in the
pressure label.
D Place an unladen vehicle on a level surface.
D Place one person (approx. 55 kg) on the driver’s seat.
D Charge the battery while keeping the engine speed at 2
000 r/min.
Illuminate the fog lamp and check that beam light falls within
the standard value.
Standard value:
Project beam light within a range of 40 meters

If beam light is out of the standard value, make adjustment with

the adjusting screw.
NOTE
No adjustment is required for horizontal directions.
Caution
1. Disconnect the connectors from the other lamps that
are not subject to adjustment so that illumination from
those lamps can be avoided. Be careful not to disturb
the tuned optical axis when connecting the connector.
2. Be sure to turn an adjusting screw in the tightening
direction before completion of adjustment.
 CHASSIS ELECTRICAL - Fog Lamps 54A-3
Alternatively, the light beam can be adjusted by using a screen
as follows (simple test).
1. Measure the center axis of the fog lamp as shown in
Center axis
of the lamp the illustration.
2. Set a screen so that it can directly face the lamps with
a distance of 3 m and illuminate the fog lamps.

Screen

3m

3. Make adjustment with an adjusting screw so that the

cut-off line (light/dark separation line) position can be
the standard value.
NOTE
No adjustment is required for horizontal direction.
Standard value:
Adjusting screw
Vertical direction 1.15° (6 cm) lower than the horizontal
line H .
Caution
(1) Disconnect the connectors from the other lamps
Center axis of V that are not subject to adjustment so that
the lamp illumination from those lamps can be avoided.
H Be careful not to disturb the tuned optical axis
Cut-off line Vertical
direction when connecting the connector.
1.15° (6 cm) (2) Be sure to turn an adjusting screw in the tightening
direction before completion of adjustment.
High brightness
zone
54A-4 CHASSIS ELECTRICAL - Fog Lamps

FOG LAMPS
REMOVAL AND INSTALLATION

Fog lamp removal steps Fog lamp switch removal steps

D Splash shield (Refer to GROUP 42 - 3. Air outlet assembly (Refer to GROUP
Fender.)* 52A - Instrumental panel.)*
1. Fog lamp 4. Fog lamp switch
AA" 2. Bulb

NOTE
*: Refer to 2001 PAJERO Workshop manual (Pub. No. PWJE0001).

REMOVAL SERVICE POINTS

AA" BULB REMOVAL
Turn the bulb anti-clockwise for removal.
Caution
1. The specified original parts are required for
replacement of the bulbs.
2. Do not touch glass parts of bulbs with bare hands
or dirty gloves.
Should any contamination is found in the glass parts,
clean the parts with alcohol or thinner as soon as
possible and dry them well before installation.
 CHASSIS ELECTRICAL - Rear Lamps 54A-5

REAR LAMPS
REAR LAMPS
REMOVAL AND INSTALLATION

Rear lamp removal steps 2. Socket assembly

1. Rear lamp 3. Bulb
54A-6 CHASSIS ELECTRICAL - Side Step Illumination Lamp

SIDE STEP ILLUMINATION LAMP

TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSIS TROUBLESHOOTING
Refer to GROUP 00 - How to Troubleshooting/Inspection Service Points.*
NOTE
*: Refer to 2001 PAJERO Workshop manual (Pub. No. PWJE0001).
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom Inspection Reference
Procedure page
No.
Side step illumination lamp does not illuminate 1 54A-6
When a door is either locked or unlocked, the side step illumination lamp does not 2 54A-7
illuminate normally.
When a door is either open or closed, the side step illumination lamp does not illuminate 3 54A-7
normally.

INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS

Inspection Procedure 1
The side step illumination lamp does not illuminate. Probable cause
The side step illumination-ECU may be defective. D Malfunction of harness or connector
D Malfunction of side step illumination-ECU

NOTE
If either one of side step illumination lamps does not illuminate, check the side step illumination lamp bulbs
or check the harness between the side step illumination lamp and the side step illumination-ECU as well as
the harness between the side step illumination lamp and body earth and repair if necessary.

(1) NG
Measure at D-150 side step illumination-ECU connector. Check the following connectors :
D Disconnect the connector, and measure at the harness side. <L.H,D.> D-150, D-209, D-223, D-27
D Ignition switch: ON <R.H,D.> D-150, D-207, D-223, D-27
(1) Voltage between 1 and body earth NG
OK : Battery voltage OK
( 2 ) Voltage between 2 and body earth
Check trouble symptoms.
OK : Bat t e r y v o l t ag e (2) NG Repair
( 3 ) Continuity between 12 and body earth NG
OK : Continuity
Check the harness between the battery and the side step
illumination-ECU and repair if necessary.
(3) NG
Check the following connectors : D-150, D-210, D-208
OK NG
OK
Check trouble symptoms. Repair
NG

Check the harness between the ignition switch (IG1) and the side
step illumination-ECU and repair if necessary.

Check the following connector : D-150

OK NG

Check trouble symptoms. Repair

NG

Check the harness between the side step illumination-ECU and

Replace the side step illumination-ECU. body earth repair if necessary.
 CHASSIS ELECTRICAL - Side Step Illumination Lamp 54A-7
Inspection Procedure 2
When a door is either locked or unlocked, the side step Probable cause
illumination lamp does not illuminate normally.
The input circuit from the ETACS-ECU or the side step illumination-ECU may be D Malfunction of harness or connector
defective. D Malfunction of the ETACS-ECU
D Malfunction of side step illumination-ECU

No
Is the central door locking system normally operated? Troubleshoot for the central door locking system.
Refer to 2001 PAJERO Workshop Manual (Pub. No.
Yes PWJE0001) GROUP 54B - Troubleshooting.

NG
Check the following connectors: D-150, D-210, D-208 Repair
OK

Check trouble symptoms.

NG

Check the harness between the side step illumination-ECU NG

connector and the ignition switch (IG1) . Repair

OK

Replace the side step illumination-ECU.

Inspection Procedure 3
When a door is either open or closed, the side step Probable cause
illumination lamp does not illuminate normally.
The input circuit from the door switch, the side step illumination-ECU or the ETACS-ECU D Malfunction of door switch
may be defective. D Malfunction of harness or connector
D Malfunction of side step illumination-ECU
D Malfunction of the ETACS-ECU

No
When either door is open with the room lamp switch in the “D” Troubleshoot for the central door locking system.
(DOOR) position, does the room lamp normally illuminate? Refer to 2001 PAJERO Workshop Manual (Pub. No.
Yes PWJE0001) GROUP 54B - Troubleshooting.

Check the following connectors: NG

<L.H.D.> D-150, D-26, D-209, D-218, D-124, F-03, F-10, F-14, Repair
F-20, G-03
<R.H.D.> D-150, D-26, D-209, D-219, F-03, F-10, F-14, F-20,
G-03
OK

Check trouble symptoms.

NG

Check the harness between the side step illumination-ECU NG

Repair
connector and each door switch.
OK

Replace the side step illumination-ECU.

54A-8 CHASSIS ELECTRICAL - Side Step Illumination Lamp

ECU TERMINAL VOLTAGE CHECK TABLE

Terminal Check item Check requirement Standard value

No.
1 Battery power supply Always Battery voltage
2 Ignition
g switch ((IG1)) p
power supply
pp y Ignition switch: Locked (off) 0V
Ignition switch: ON Battery voltage
3 Lock signal input from the ETACS-ECU Door lock actuator activated (locked) 0V
4 Side step illumination lamp output (LH) Side step illumination lamp (LH) ON 2 V or less
5 Side step illumination lamp output (RH) Side step illumination lamp (RH) ON 2 V or less
8 Unlock signal input from the ETACS-ECU Door lock actuator activated Battery voltage
(unlocked)
9 All door switch output Ignition switch: Locked 0V
12 Earth (side step illumination lamp-ECU) Always 0V
 CHASSIS ELECTRICAL - Side Step Illumination Lamp 54A-9

SIDE STEP ILLUMINATION LAMP

REMOVAL AND INSTALLATION

7
6
5
4
3
2
4.9 ± 0.9 N·m
7
6
5
4
3
2 4.9 ± 0.9 N·m

Side step illumination lamp removal 4. Side step illumination lamp unit
steps 5. Side step illumination lamp harness
1. Side step illumination lamp harness and bulb assembly
connector 6. Side step illumination lamp bulb
2. Side step illumination lamp bracket 7. Side step illumination lamp harness
3. Side step illumination lamp assembly
54A-10 CHASSIS ELECTRICAL - Side Step Illumination Lamp

SIDE STEP ILLUMINATION ECU

REMOVAL AND INSTALLATION

1
4.9 ± 0.9 N·m

Side step illumination ECU removal

steps
D Lower panel (Refer to GROUP 52A -
Instrument Panel.)*
1. Side step illumination ECU

NOTE
*: Refer to 2001 PAJERO Workshop manual (Pub. No. PWJE0001).