Infiniti G35 (V35) Sedan. Manual - part 585

 

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Infiniti G35 (V35) Sedan. Manual - part 585

 

 

EC-486

< ECU DIAGNOSIS >

[VQ35HR]

ECM

MASS AIRFLOW

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

2.0 - 6.0 g·m/s

2,500 rpm

7.0 - 20.0 g·m/s

PURG VOL C/V

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle
(Accelerator pedal: Not depressed even 
slightly, after engine starting.)

0%

2,000 rpm

INT/V TIM (B1)

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

5

°

 - 5

°

CA

2,000 rpm

Approx. 0

°

 - 30

°

CA

INT/V TIM (B2)

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

5

°

 - 5

°

CA

2,000 rpm

Approx. 0

°

 - 30

°

CA

EXH/V TIM B1

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

5

°

 - 5

°

CA

Around 2,500 rpm while the engine speed 
is rising

Approx. 0

°

 - 30

°

CA

EXH/V TIM B2

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

5

°

 - 5

°

CA

Around 2,500 rpm while the engine speed 
is rising

Approx. 0

°

 - 30

°

CA

INT/V SOL (B1)

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

0% - 2%

2,000 rpm

Approx. 0% - 50%

INT/V SOL (B2)

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

0% - 2%

2,000 rpm

Approx. 0% - 50%

EX VTC DTY B1

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

0% - 2%

Around 2,500 rpm while the engine speed 
is rising

Approx. 0% - 70%

EX VTC DTY B2

• Engine: After warming up
• Selector lever: P or N (A/T), Neu-

tral (M/T)

• Air conditioner switch: OFF
• No load

Idle

0% - 2%

Around 2,500 rpm while the engine speed 
is rising

Approx. 0% - 70%

TP SEN 1-B2

• Ignition switch: ON

(Engine stopped)

• Selector lever: D (A/T) or 1st (M/T)

Accelerator pedal: Fully released

More than 0.36V

Accelerator pedal: Fully depressed

Less than 4.75V

TP SEN 2-B2*

1

• Ignition switch: ON

(Engine stopped)

• Selector lever: D (A/T) or 1st (M/T)

Accelerator pedal: Fully released

More than 0.36V

Accelerator pedal: Fully depressed

Less than 4.75V

AIR COND RLY

• Engine: After warming up, idle the 

engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates)

ON

Monitor Item

Condition

Values/Status

ECM

EC-487

< ECU DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

FUEL PUMP RLY

• For 1 seconds after turning ignition switch: ON
• Engine running or cranking

ON

• Except above

OFF

VENT CONT/V

• Ignition switch: ON

OFF

THRTL RELAY

• Ignition switch: ON

ON

HO2S2 HTR (B1)

• Engine speed: 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

ON

• Engine speed: Above 3,600 rpm

OFF

HO2S2 HTR (B2)

• Engine speed: 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

ON

• Engine speed: Above 3,600 rpm

OFF

I/P PULLY SPD

• Vehicle speed: More than 20 km/h (12 MPH)

Almost the same speed as 
the tachometer indication

VEHICLE SPEED

• Turn drive wheels and compare CONSULT-III value with the speedometer indi-

cation.

Almost the same speed as 
the speedometer indication

IDL A/V LEARN

• Engine: Running

Idle air volume learning has not been per-
formed yet.

YET

Idle air volume learning has already been 
performed successfully.

CMPLT

SNOW MODE SW

• Ignition switch: ON

Snow mode switch: ON

ON

Snow mode switch: OFF

OFF

ENG OIL TEMP

• Engine: After warming up

More than 70

°

C (158

°

F)

TRVL AFTER MIL

• Ignition switch: ON

Vehicle has traveled after MIL has turned 
ON.

0 - 65,535 km
(0 - 40,723 miles)

A/F S1 HTR (B1)

• Engine: After warming up, idle the engine

(More than 140 seconds after starting engine)

4 - 100%

A/F S1 HTR (B2)

• Engine: After warming up, idle the engine

(More than 140 seconds after starting engine)

4 - 100%

AC PRESS SEN

• Engine: Idle
• Both A/C switch and blower fan switch: ON (Compressor operates)

1.0 - 4.0V

VHCL SPEED SE

• Turn drive wheels and compare CONSULT-III value with the speedometer indi-

cation.

Almost the same speed as 
the speedometer indication

SET VHCL SPD

• Engine: Running

ASCD: Operating

The preset vehicle speed is 
displayed

MAIN SW

• Ignition switch: ON

MAIN switch: Pressed

ON

MAIN switch: Released

OFF

CANCEL SW

• Ignition switch: ON

CANCEL switch: Pressed

ON

CANCEL switch: Released

OFF

RESUME/ACC SW

• Ignition switch: ON

RESUME/ACCELERATE switch: 
Pressed

ON

RESUME/ACCELERATE switch: Re-
leased

OFF

SET SW

• Ignition switch: ON

SET/COAST switch: Pressed

ON

SET/COAST switch: Released

OFF

BRAKE SW1
(ICC/ASCD brake 
switch)

• Ignition switch: ON

Brake pedal: Fully released

ON

Brake pedal: Slightly depressed

OFF

Monitor Item

Condition

Values/Status

EC-488

< ECU DIAGNOSIS >

[VQ35HR]

ECM

*1: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ
from ECM terminals voltage signal.

*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to 

PG-2, "How to Handle Battery"

.

TERMINAL LAYOUT

PHYSICAL VALUES

NOTE:
• ECM is located behind the instrument assist lower panel. For this inspection, remove passenger side instru-

ment lower panel.

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

CAUTION:

BRAKE SW2
(Stop lamp switch)

• Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

DIST SW

• Ignition switch: ON

DISTANCE switch: Pressed

ON

DISTANCE switch: Released

OFF

VHCL SPD CUT

• Ignition switch: ON

NON

LO SPEED CUT

• Ignition switch: ON

NON

AT OD MONITOR

• Ignition switch: ON

OFF

AT OD CANCEL

• Ignition switch: ON

OFF

CRUISE LAMP

• Ignition switch: ON

MAIN switch: Pressed at the 1st time 

 

at the 2nd time

ON 

 OFF

SET LAMP

• MAIN switch: ON
• When vehicle speed is between 40 

km/h (25 MPH) and 144 km/h (89 
MPH)

ASCD: Operating

ON

ASCD: Not operating

OFF

EXH V/T LEARN

• Engine: Running

Exhaust Valve Timing Control Learning 
has not been performed yet.

YET

Exhaust Valve Timing Control Learning 
has not been performed yet.

CMPLT

BAT CUR SEN

• Engine speed: Idle

• Battery: Fully charged*

2

• Selector lever: P or N (A/T), Neutral (M/T)
• Air conditioner switch: OFF
• No load

Approx. 2,600 - 3,500mV

ALT DUTY

• Engine: Idle

0 - 80%

A/F ADJ B1

• Engine: Running

0.330 - 0.330

A/F ADJ B2

• Engine: Running

0.330 - 0.330

FAN DUTY

• Engine: Running

0 - 100%

ALT DUTY SIG

• Power generation voltage variable control: Operating

ON

• Power generation voltage variable control: Not operating

OFF

Monitor Item

Condition

Values/Status

JMBIA0070ZZ

ECM

EC-489

< ECU DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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.

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

1

Ground

W

A/F sensor 1 heater
(bank 1)

Output

[Engine is running]
• Warm-up condition
• Idle speed

(More than 140 seconds after 
starting engine)

2.9 - 8.8V

2

Ground

G

Throttle control motor 
(Open) (bank 1)

Output

[Ignition switch: ON]
• Engine stopped
• Selector lever: D (A/T) or 1st (M/

T)

• Accelerator pedal: Fully de-

pressed

0 - 14V

[Ignition switch: ON]
• Engine stopped
• Selector lever: D (A/T) or 1st (M/

T)

• Accelerator pedal: Fully re-

leased

0 - 14V

3

Ground

R

Throttle control motor re-
lay power supply (bank 
1)

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

4

Ground

BR

Throttle control motor 
(Close) (bank 1)

Output

[Ignition switch: ON]
• Engine stopped
• Selector lever: D (A/T) or 1st (M/

T)

• Accelerator pedal: In the middle 

of releasing operation

0 - 14V

5

Ground

GR

A/F sensor 1 heater
(bank 2)

Output

[Engine is running]
• Warm-up condition
• Idle speed

(More than 140 seconds after 
starting engine)

2.9 - 8.8V

JMBIA0030GB

JMBIA0031GB

JMBIA0032GB

JMBIA0033GB

JMBIA0030GB

 

 

 

 

 

 

 

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