Infiniti FX35, FX50 (S51). Manual - part 1184

ECM

HAC-133

< ECU DIAGNOSIS INFORMATION >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

63

(BR)

62

(O)

Camshaft position sensor 
(bank 2)

Input

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

NOTE:
The pulse cycle changes depending 
on rpm at idle

3.0 - 5.0 V

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

3.0 - 5.0 V

64

(P)

62

(O)

Exhaust valve timing control 
position sensor (bank 2)

Input

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

NOTE:
The pulse cycle changes depending 
on rpm at idle

4.0 - 5.0 V

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

4.0 - 5.0 V

65

(LG)

128

(B)

VVEL actuator motor relay 
abort signal
(VVEL control module)

Output

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

0 V

66

(GR)

—

Sensor ground
(Power steering pressure sen-
sor/ Refrigerant pressure sen-
sor)

—

—

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JMBIA0045GB

JMBIA0046GB

JMBIA0043GB

JMBIA0044GB

HAC-134

< ECU DIAGNOSIS INFORMATION >

[AUTOMATIC AIR CONDITIONER]

ECM

67

(Y)

68

(B)

Crankshaft position sensor

Input

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

NOTE:
The pulse cycle changes depending 
on rpm at idle

4.0 - 5.0 V

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

4.0 - 5.0 V

68

(B)

—

Sensor ground
(Crankshaft position sensor)

—

—

—

69

(W)

70

(B)

Manifold pressure sensor
(This sensor is not for control-
ling the engine system, nor for 
the on board diagnosis.)

Input

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

1.2 V

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

1.5 V

70

(B)

—

Sensor ground
[Battery current sensor/ EVAP 
control system pressure sen-
sor/ Manifold pressure sensor]

—

—

—

71

(R)

—

Sensor ground
[Throttle position sensor (bank 
1)]

—

—

—

72

(Y)

—

Sensor ground
[Throttle position sensor (bank 
2)]

—

—

—

73

(L)

71

(R)

Throttle position sensor 1 
(bank 1)

Input

[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully released

More than 0.36 V

[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully depressed

Less than 4.75 V

74

(R)

72

(Y)

Throttle position sensor 2 
(bank 2)

Input

[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully released

Less than 4.75 V

[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully depressed

More than 0.36 V

76

(G)

70

(B)

Battery current sensor

Input

[Engine is running]

• Battery: Fully charged*

2

• Idle speed

2.6 - 3.5 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JMBIA0041GB

JMBIA0042GB

ECM

HAC-135

< ECU DIAGNOSIS INFORMATION >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

77

(B)

72

(Y)

Throttle position sensor 1 
(bank 2)

Input

[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully released

More than 0.36 V

[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully depressed

Less than 4.75 V

78

(Y)

71

(R)

Throttle position sensor 2 
(bank 1)

Input

[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully released

Less than 4.75 V

[Ignition switch: ON]
• Engine: Stopped
• Selector lever: D position
• Accelerator pedal: Fully depressed

More than 0.36 V

80

(GR)

70

(B)

EVAP control system pressure 
sensor

Input

[Ignition switch: ON]

1.8 - 4.8 V

81

(V)

128

(B)

A/F sensor 1 (bank 1)

Input

[Ignition switch: ON]

2.2 V

82

(LG)

128

(B)

A/F sensor 1 (bank 1)

Input

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

1.8 V
Output voltage varies with air fuel 
ratio.

83

(SB)

66

(GR)

Power steering pressure sen-
sor

Output

[Engine is running]
• Steering wheel: Being turned

0.5 - 4.5 V

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

0.4 - 0.8 V

84

(B)

71

(R)

Sensor power supply
[Throttle position sensor (bank 
1)]

—

[Ignition switch: ON]

5 V

85

(Y)

128

(B)

A/F sensor 1 (bank 2)

Input

[Ignition switch: ON]

2.2 V

86

(O)

128

(B)

A/F sensor 1 (bank 2)

Input

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

1.8 V
Output voltage varies with air fuel 
ratio.

87

(R)

68

(B)

Sensor power supply
(Crankshaft position sensor)

—

[Ignition switch: ON]

5 V

88

(Y)

62

(O)

Sensor power supply
[Camshaft position sensor 
(bank 2)/ Exhaust valve timing 
control position sensor (bank 
2)]

—

[Ignition switch: ON]

5 V

89

(P)

—

CAN communication line
(VVEL control module)

Input/

Output

—

—

90

(G)

66

(GR)

Refrigerant pressure sensor

Input

[Engine is running]
• Warm-up condition
• Both A/C switch and blower fan mo-

tor switch: ON (Compressor oper-
ates)

1.0 - 4.0 V

91

(R)

58

(B)

Sensor power supply
[Camshaft position sensor 
(bank 1)/ Exhaust valve timing 
control position sensor (bank 
1)]

—

[Ignition switch: ON]

5 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

HAC-136

< ECU DIAGNOSIS INFORMATION >

[AUTOMATIC AIR CONDITIONER]

ECM

92

(W)

66

(GR)

Sensor power supply
(Power steering pressure sen-
sor/ Refrigerant pressure sen-
sor)

—

[Ignition switch: ON]

5 V

93

(LG)

—

CAN communication line
(VVEL control module)

Input/

Output

—

—

95

(Y)

70

(B)

Sensor power supply
[Battery current sensor/ EVAP 
control system pressure sen-
sor/ Manifold pressure sensor]

—

[Ignition switch: ON]

5 V

96

(L)

72

(Y)

Sensor power supply
[Throttle position sensor (bank 
2)]

—

[Ignition switch: ON]

5 V

97

(R)

128

(B)

Engine speed output signal

Output

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

NOTE:
The pulse cycle changes depending 
on rpm at idle

1 V

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

1 V

99

(L)*

3

(G)*

4

115

(GR)

Sensor power supply
(Accelerator pedal position 
sensor 2)

—

[Ignition switch: ON]

5 V

100

(G)*

3

(L)*

4

119
(W)

Sensor power supply
(Accelerator pedal position 
sensor 1)

—

[Ignition switch: ON]

5 V

101

(P)

—

CAN communication line

Input/

Output

—

—

102

(SB)

111

(V)

ASCD steering switch

Input

[Ignition switch: ON]
• ASCD steering switch: OFF

4 V

[Ignition switch: ON]
• MAIN switch: Pressed

0 V

[Ignition switch: ON]
• CANCEL switch: Pressed

1 V

[Ignition switch: ON]
• RESUME/ACCELERATE switch: 

Pressed

3 V

[Ignition switch: ON]
• SET/COAST switch: Pressed

2 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JMBIA0076GB

JMBIA0077GB