Infiniti G35 (V35) Sedan. Manual - part 587

 

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Infiniti G35 (V35) Sedan. Manual - part 587

 

 

EC-494

< ECU DIAGNOSIS >

[VQ35HR]

ECM

48

Ground

B

Sensor ground
[Throttle position sensor 
(bank 2)]

—

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

0V

49

Ground

L

Throttle control motor 
(Close) (bank 2)

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

50

Ground

V

Throttle control motor 
(Open) (bank 2)

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

52

Ground

R

Throttle control motor re-
lay power supply (bank 
2)

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

53

Ground

P

Ignition switch

Input

[Ignition switch: OFF]

0V

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

57

Ground

L

A/F sensor 1 (bank 1)

Input

[Ignition switch: ON]

2.2V

58

Ground

GR

Exhaust valve timing 
control position sensor 
(bank 1)

Input

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle

4.0 - 5.0

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

4.0 - 5.0

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0033GB

JMBIA0031GB

JMBIA0032GB

JMBIA0043GB

JMBIA0044GB

ECM

EC-495

< ECU DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

59

Ground

O

Camshaft position sen-
sor (PHASE) (bank 1)

Input

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle

3.0 - 5.0

[Engine is running]
• Engine speed: 2,000 rpm

3.0 - 5.0

60

Ground

R

Sensor power supply
[Camshaft position sen-
sor (PHASE) (bank 1), 
Exhaust valve timing 
control position sensor 
(bank 1), Power steering 
pressure sensor]

—

[Ignition switch: ON]

5V

61

Ground

R

A/F sensor 1 (bank 1)

Input

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

1.8V
Output voltage varies with air fuel 
ratio.

62

Ground

G

Exhaust valve timing 
control position sensor 
(bank 2)

Input

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle

4.0 - 5.0

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

4.0 - 5.0

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0045GB

JMBIA0046GB

JMBIA0043GB

JMBIA0044GB

EC-496

< ECU DIAGNOSIS >

[VQ35HR]

ECM

63

Ground

SB

Camshaft position sen-
sor (PHASE) (bank 2)

Input

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle

3.0 - 5.0

[Engine is running]
• Engine speed: 2,000 rpm

3.0 - 5.0

64

Ground

W

Sensor power supply
[Camshaft position sen-
sor (PHASE) (bank 2), 
Exhaust valve timing 
control position sensor 
(bank 2), Battery current 
sensor]

—

[Ignition switch: ON]

5V

65

Ground

V

A/F sensor 1 (bank 2)

Input

[Ignition switch: ON]

2.2V

66

Ground

LG

A/F sensor 1 (bank 2)

Input

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

1.8V
Output voltage varies with air fuel 
ratio.

67

Ground

P

Intake air temperature 
sensor (bank 1)

Input

[Engine is running]

0 - 4.8V
Output voltage varies with intake 
air temperature.

68

Ground

LG

Sensor ground
[Mass air flow sensor 
(bank 1), Intake air tem-
perature sensor (bank 
1)]

—

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

0V

69

Ground

W

Knock sensor (bank 2)

Input

[Engine is running]
• Idle speed

2.5V*

1

71

Ground

Y

Engine coolant tempera-
ture sensor

Input

[Engine is running]

0 - 4.8V
Output voltage varies with engine 
coolant temperature.

72

Ground

—

Sensor ground
(Knock sensor)

—

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

0V

73

Ground

W

Knock sensor (bank 1)

Input

[Engine is running]
• Idle speed

2.5V*

1

76

Ground

W

Heated oxygen sensor 2 
(bank 1)

Input

[Engine is running]
• Revving engine from idle to 

3,000 rpm quickly after the fol-
lowing conditions are met

- Engine: after warming up
- Keeping the engine speed be-

tween 3,500 and 4,000 rpm for 1 
minute and at idle for 1 minute 
under no load

0 - 1.0V

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0045GB

JMBIA0046GB

ECM

EC-497

< ECU DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

77

Ground

SB

Mass air flow sensor 
(bank 1)

Input

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

0.8 - 1.1V

[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm

1.4 - 1.7V

78

Ground

G

Engine oil temperature 
sensor

Input

[Engine is running]

0 - 4.8V
Output voltage varies with engine 
oil temperature.

79

Ground

GR

Mass air flow sensor 
(bank 2)

Input

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

0.8 - 1.1V

[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm

1.4 - 1.7V

80

Ground

O

Heated oxygen sensor 2 
(bank 2)

Input

[Engine is running]
• Revving engine from idle to 

3,000 rpm quickly after the fol-
lowing conditions are met

- Engine: after warming up
- Keeping the engine speed be-

tween 3,500 and 4,000 rpm for 1 
minute and at idle for 1 minute 
under no load

0 - 1.0V

81
82
85
86
89
90

Ground

R
V

BR

W

GR

O

Fuel injector No. 3
Fuel injector No. 6
Fuel injector No. 2
Fuel injector No. 5
Fuel injector No. 1
Fuel injector No. 4

Output

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

NOTE:
The pulse cycle changes de-
pending on rpm at idle

BATTERY VOLTAGE

(11 - 14V)

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

BATTERY VOLTAGE

(11 - 14V)

83

Ground

G

Intake air temperature 
sensor (bank 2)

Input

[Engine is running]

0 - 4.8V
Output voltage varies with intake 
air temperature.

84

Ground

B

Sensor ground
(Heated oxygen sensor 
2, Engine coolant tem-
perature sensor, Engine 
oil temperature sensor)

—

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

0V

87

Ground

Y

Power steering pressure 
sensor

Output

[Engine is running]
• Steering wheel: Being turned

0.5 - 4.5V

[Engine is running]
• Steering wheel: Not being turned

0.4 - 0.8V

Terminal No.

Wire 

color

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0047GB

JMBIA0048GB

 

 

 

 

 

 

 

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