Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
To B134 To B135 To B136 To B137
7 6 5 4 3 2 1 7 6 5 4 3 2 1 6 5 4 3 2 1 7 6 5 4 3 2 1
17 16 15 14 13 12 11 10 9 8 19 18 17 16 15 14 13 12 11 10 9 8 16 15 14 13 12 11 10 9 8 7 17 16 15 14 13 12 11 10 9 8
27 26 25 24 23 22 21 20 19 18 27 26 25 24 23 22 21 20 27 26 25 24 23 22 21 20 19 18 17 25 24 23 22 21 20 19 18
34 33 32 31 30 29 28 35 34 33 32 31 30 29 28 35 34 33 32 31 30 29 28 31 30 29 28 27 26
EN-01812
Con- Signal (V)
Termi-
Description nector Ignition SW ON Engine ON Note
nal No.
No. (engine OFF) (idling)
Crank- Signal (+) B135 10 0 −7 — +7 Waveform
shaft posi- Signal (−) B135 22 0 0 —
tion sensor Shield B135 31 0 0 —
Signal B137 25 0 0 — 0.9 —
Rear oxy-
Shield B137 31 0 0 —
gen sen-
sor GND (sen-
B136 35 0 0 —
sor)
Front oxy- Signal 1 B134 3 — — Waveform
gen (A/F)
sensor Signal 2 B134 2 — — Waveform
heater
Rear oxygen sensor
B135 2 0 — 13 13 — 14 Waveform
heater signal
Engine Signal B136 14 1.0 — 1.4 1.0 — 1.4 After engine is warmed-up.
coolant
tempera- GND (sen-
ture sen- B136 35 0 0 After engine is warmed-up.
sor)
sor
Signal B136 23 — 0.3 — 4.5 —
Air flow
Shield B136 32 0 0 —
sensor
GND B136 31 0 0 —
Intake air temperature
B136 13 0.3 — 4.6 0.3 — 4.6 —
sensor signal
Wastegate control sole-
B134 32 0 or 10 — 13 0 or 13 — 14 Waveform
noid valve
Starter switch B137 8 0 0 Cranking: 8 — 14
ON: 10 — 13 ON: 13 — 14
A/C switch B137 17 —
OFF: 0 OFF: 0
Ignition switch B137 14 10 — 13 13 — 14 —
Neutral position switch ON: 10 — 13 ON: 13 — 14
B137 9 —
(MT) OFF: 0 OFF: 0
EN(H4DOTC)(diag)-17
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
Con- Signal (V)
Termi-
Description nector Ignition SW ON Engine ON Note
nal No.
No. (engine OFF) (idling)
Neutral position switch ON: 0 ON: 0
B137 9 —
(AT) OFF: 10 — 13 OFF: 13 — 14
Test mode connector B137 15 10 — 13 13 — 14 When connected: 0
Knock Signal B136 25 2.8 2.8 —
sensor Shield B136 33 0 0 —
Back-up power supply B135 19 10 — 13 13 — 14 Ignition switch “OFF”: 10 — 13
Control module power B135 5 10 — 13 13 — 14 —
supply B135 6 10 — 13 13 — 14 —
Sensor power supply B136 16 5 5 —
#1 B135 18 0 13 — 14 Waveform
Ignition #2 B135 17 0 13 — 14 Waveform
control #3 B135 16 0 13 — 14 Waveform
#4 B135 15 0 13 — 14 Waveform
#1 B136 6 10 — 13 1 — 14 Waveform
Fuel injec- #2 B136 5 10 — 13 1 — 14 Waveform
tor #3 B136 4 10 — 13 1 — 14 Waveform
#4 B136 3 10 — 13 1 — 14 Waveform
Fuel pump Signal 1 B137 28 10 — 13 13 — 14 —
control unit Signal 2 B135 27 0 or 5 0 or 5 Waveform
ON: 0.5 or less ON: 0.5 or less
A/C relay control B135 33 —
OFF: 10 — 13 OFF: 13 — 14
Radiator fan relay 1 ON: 0.5 or less ON: 0.5 or less
B135 25 —
control OFF: 10 — 13 OFF: 13 — 14
Radiator fan relay 2 ON: 0.5 or less ON: 0.5 or less
B135 24 Model with A/C
control OFF: 10 — 13 OFF: 13 — 14
Malfunction indicator Light “ON”: 1 or less
B134 17 — —
light Light “OFF”: 10 — 14
Engine speed output B134 23 — 0 — 13 or more Waveform
Purge control solenoid ON: 1 or less ON: 1 or less
B134 14 Waveform
valve OFF: 10 — 13 OFF: 13 — 14
Signal B136 22 1.7 — 2.4 1.1 — 1.6
Manifold
Power
absolute B136 16 5 5
supply —
pressure
sensor GND (sen-
B136 35 0 0
sor)
Power steering oil pres- ON: 0
B137 10 10 — 13 —
sure switch OFF: 13 — 14
Front oxygen (A/F) sen-
B134 33 2.8 — 3.2 2.8 — 3.2 —
sor signal (+)
Front oxygen (A/F) sen-
B134 26 2.4 — 2.7 2.4 — 2.7 —
sor signal (−)
Front oxygen (A/F) sen-
B134 25 0 0 —
sor shield
SSM communication Less than 1←→ More Less than 1←→ More
B137 20 —
line than 4 than 4
GND (injector) B137 7 0 0 —
GND (sensor) B136 35 0 0 —
GND (ignition system) B135 12 0 0 —
B135 4 0 0 —
GND (power supply)
B135 1 0 0 —
B137 1 0 0 —
GND (control system)
B137 2 0 0 —
EN(H4DOTC)(diag)-18
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
Con- Signal (V)
Termi-
Description nector Ignition SW ON Engine ON Note
nal No.
No. (engine OFF) (idling)
GND (Front oxygen (A/
B134 7 0 0 —
F) sensor heater 1)
GND (Front oxygen (A/
B134 6 0 0 —
F) sensor heater 2)
GND (Electronic throt-
B137 3 0 0 —
tle control)
Intake camshaft posi-
B135 8 0 or 5 0 or 5 Waveform
tion sensor (LH)
Intake camshaft posi-
B135 9 0 or 5 0 or 5 Waveform
tion sensor (RH)
0.64 — 0.72
0.64 — 0.72 Fully closed: 0.6 Fully open:
Main B136 18 (After engine is
Fully open: 3.96 3.96
warmed-up.)
1.51 — 1.58
Electronic 1.51 — 1.58 Fully closed: 1.48 Fully open:
Sub B136 29 (After engine is
throttle Fully open: 4.17 4.17
warmed-up.)
control
Power
B136 16 5 5 —
supply
GND (sen-
B136 35 0 0 —
sor)
Electronic throttle con-
B137 5 Duty waveform Duty waveform Drive frequency: 500 Hz
trol motor (+)
Electronic throttle con-
B137 4 Duty waveform Duty waveform Drive frequency: 500 Hz
trol motor (−)
Electronic throttle con-
B137 6 10 — 13 13 — 14 —
trol motor power supply
Electronic throttle con- ON: 0 ON: 0 When ignition switch is turned
B135 35
trol motor relay OFF: 10 — 13 OFF: 13 — 14 to ON: ON
Intake ON: 10 — 13 ON: 13 — 14
Signal (+) B134 19 —
AVCS OFF: 0 OFF: 0
solenoid
(LH) Signal (−) B134 29 0 0 —
Intake ON: 10 — 13 ON: 13 — 14
Signal (+) B134 18 —
AVCS OFF: 0 OFF: 0
solenoid
(RH) Signal (−) B134 28 0 0 —
Fully closed: 1 Fully closed: 1
Main B136 17 —
Fully open: 3.3 Fully open: 3.3
Power
B136 15 5 5 —
supply
GND (sen-
B136 34 0 0 —
Accelera- sor)
tor position Fully closed: 1 Fully closed: 1
Sub B136 28 —
sensor Fully open: 3.3 Fully open: 3.3
Shield B137 2 0 0 —
Power
B136 16 5 5 —
supply
GND (sen-
B136 35 0 0 —
sor)
ON: 0 ON: 0
Starter relay B135 32 ON: Cranking
OFF: 10 — 13 OFF: 13 — 14
A/C middle pressure ON: 0 ON: 0
B136 30 —
switch OFF: 10 — 13 OFF: 13 — 14
EN(H4DOTC)(diag)-19
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
Con- Signal (V)
Termi-
Description nector Ignition SW ON Engine ON Note
nal No.
No. (engine OFF) (idling)
When clutch pedal is When clutch pedal is
depressed: 0 depressed: 0
Clutch switch B134 1 —
When clutch pedal is When clutch pedal is
released: 10 — 13 released: 13 — 14
When brake pedal is When brake pedal is
depressed: 0 depressed: 0
Brake switch 1 B136 9 —
When brake pedal is When brake pedal is
released: 10 — 13 released: 13 — 14
When brake pedal is When brake pedal is
depressed: 10 — 13 depressed: 13 — 14
Brake switch 2 B136 8 —
When brake pedal is When brake pedal is
released: 0 released: 0
When operating noth- When operating noth-
ing: 3.5 — 4.5 ing: 3.5 — 4.5
When operating RES/ When operating RES/
Cruise control com- ACC: 2.5 — 3.5 ACC: 2.5 — 3.5
B136 11 —
mand switch When operating SET/ When operating SET/
COAST: 0.5 — 1.5 COAST: 0.5 — 1.5
When operating CAN- When operating CAN-
CEL: 0 — 0.5 CEL: 0 — 0.5
Cruise control main ON: 0 ON: 0
B136 7 —
switch OFF: 5 OFF: 5
Exhaust gas tempera-
B136 24 — — —
ture sensor
Fuel tank pressure sen-
B136 21 2.3 — 2.7 2.3 — 2.7 —
sor
Fuel tank pressure con- ON: 1 or less ON: 1 or less
B134 12 —
trol solenoid valve OFF: 10 — 13 OFF: 13 — 14
ON: 1 or less ON: 1 or less
Drain valve B134 13 —
OFF: 10 — 13 OFF: 13 — 14
Fuel tank sensor control ON: 1 or less ON: 1 or less
B134 24 —
valve OFF: 10 — 13 OFF: 13 — 14
Fuel temperature sen-
B136 12 2.5 — 3.8 2.5 — 3.8 Ambient temperature: 25°C
sor signal
Immobi- Signal 1 B137 19 — — —
lizer Signal 2 B137 27 — — —
CAN Communication
B137 18 — — —
(+)
CAN Communication
B137 26 — — —
(−)
AT/MT identification sig-
B134 34 0 0 —
nal
Blow-by leak diagnosis
B137 24 0 0 —
signal
Fully closed: 3.8 — 4.9
Tumble generator valve Fully closed: 3.8 — 4.9
B136 27 Fully opened: 0.2 — —
position sensor RH Fully opened: 0.2 — 0.9
0.9
Fully closed: 3.8 — 4.9
Tumble generator valve Fully closed: 3.8 — 4.9
B136 26 Fully opened: 0.2 — —
position sensor LH Fully opened: 0.2 — 0.9
0.9
Tumble generator valve
B134 8 0 or 10 — 13 0 or 13 — 14 —
RH (close)
Tumble generator valve
B134 10 0 or 10 — 13 0 or 13 — 14 —
LH (close)
EN(H4DOTC)(diag)-20
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
Con- Signal (V)
Termi-
Description nector Ignition SW ON Engine ON Note
nal No.
No. (engine OFF) (idling)
Tumble generator valve
B134 9 0 or 10 — 13 0 or 13 — 14 —
RH (open)
Tumble generator valve
B134 11 0 or 10 — 13 0 or 13 — 14 —
LH (open)
EN(H4DOTC)(diag)-21
