Infiniti G35 (V35). Manual - part 307

TROUBLE DIAGNOSIS

EC-109

C

D

E

F

G

H

I

J

K

L

M

A

EC

Circuit Diagram

NBS000NH

TBWM1612E

EC-110

TROUBLE DIAGNOSIS

TBWM1279E

TROUBLE DIAGNOSIS

EC-111

C

D

E

F

G

H

I

J

K

L

M

A

EC

ECM Harness Connector Terminal Layout

NBS000NI

ECM Terminals and Reference Value

NBS000NJ

PREPARATION

ECM is located behind the glove box. For this inspection, remove
glove box.

ECM INSPECTION TABLE

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.

PBIB1192E

PBIB1278E

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

1

B

ECM ground

[Engine is running]

●

Idle speed

Body ground

2

OR

A/F sensor 1 heater
 (bank 1)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 5V

3

W/R

Throttle control motor relay 
power supply

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

4

BR

Throttle control motor 
(Close)

[Ignition switch: ON]

●

Engine stopped

●

Shift lever: D (A/T) or 1st (M/T)

●

Accelerator pedal: Fully released

0 - 14V

PBIB1584E

PBIB1104E

EC-112

TROUBLE DIAGNOSIS

5

G

Throttle control motor 
(Open)

[Ignition switch: ON]

●

Engine stopped

●

Shift lever: D (A/T) or 1st (M/T)

●

Accelerator pedal: Fully depressed

0 - 14V

6

BR/W

Heated oxygen sensor 2 
heater (bank 2)

[Engine is running]

●

Engine speed is below 3,600 rpm after the 
following conditions are met.

–

Engine: After warming up

–

Keeping the engine speed between 3,500 
and 4,000 rpm for 1 minute and at idle for 1 
minute under no load.

0 - 1.0V

[Ignition switch: ON]

●

Engine stopped

[Engine is running]

●

Engine speed: Above 3,600 rpm

BATTERY VOLTAGE
(11 - 14V)

8*

R/W

Exhaust valve timing control 
magnet retarder (bank 2)

[Engine is running]

●

Warm-up condition

●

Idle speed

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

●

Warm-up condition

●

Engine speed: Above 1,500 rpm

7 - 12V

9*

P

Exhaust valve timing control 
magnet retarder (bank 1)

[Engine is running]

●

Warm-up condition

●

Idle speed

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

●

Warm-up condition

●

Engine speed: Above 1,500 rpm

7 - 12V

10

W/G

Intake valve timing control 
solenoid valve (bank 2)

[Engine is running]

●

Warm-up condition

●

Idle speed

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

●

Warm-up condition

●

When revving engine up to 2,000 rpm 
quickly

7 - 12V

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

PBIB1105E

PBIB1790E

PBIB1790E

PBIB1790E