Infiniti FX35, FX50 (S51). Manual - part 901

 

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Infiniti FX35, FX50 (S51). Manual - part 901

 

 

ECM

EC-1145

< ECU DIAGNOSIS INFORMATION >

[VK50VE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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

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

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

Signal name

Input/

Output

EC-1146

< ECU DIAGNOSIS INFORMATION >

[VK50VE]

ECM

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

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 absolute pres-
sure sensor]

[Ignition switch: ON]

5 V

96

(L)

72

(Y)

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

[Ignition switch: ON]

5 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

Signal name

Input/

Output

ECM

EC-1147

< ECU DIAGNOSIS INFORMATION >

[VK50VE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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

102

(SB)

111

(V)

ICC steering switch

Input

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

4.2 V

[Ignition switch: ON]
• MAIN switch: Pressed

0 V

[Ignition switch: ON]
• CANCEL switch: Pressed

1.9 V

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

Pressed

3.7 V

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

3.2 V

[Ignition switch: ON]
• DISTANCE switch: Pressed

2.6 V

[Ignition switch: ON]
• LDP switch: Pressed

1.0 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

Signal name

Input/

Output

JMBIA0076GB

JMBIA0077GB

EC-1148

< ECU DIAGNOSIS INFORMATION >

[VK50VE]

ECM

104

(R)

119
(W)

Accelerator pedal position 
sensor 1

Input

[Ignition switch: ON]
• Engine: Stopped
• Accelerator pedal: Fully released

0.45 - 1.0 V

[Ignition switch: ON]
• Engine: Stopped
• Accelerator pedal: Fully depressed

4.4 - 4.8 V

105

(L)

CAN communication line

Input/

Output

106

(L)

128

(B)

Ignition switch

Input

[Ignition switch: OFF]

0 V

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

108

(Y)*

3

(P)*

4

115

(GR)

Accelerator pedal position 
sensor 2

Input

[Ignition switch: ON]
• Engine: Stopped
• Accelerator pedal: Fully released

0.22 - 0.5 V

[Ignition switch: ON]
• Engine: Stopped
• Accelerator pedal: Fully depressed

2.1 - 2.5 V

110

(P)

128

(B)

Stop lamp switch

Input

[Ignition switch: OFF]
• Brake pedal: Fully released

0 V

[Ignition switch: OFF]
• Brake pedal: Slightly depressed

BATTERY VOLTAGE
(11 - 14 V)

111

(V)

Sensor ground
(ASCD steering switch)

112

(LG)

128

(B)

Fuel pump control module
(FPCM) check

Input

[When cranking engine]

0 V

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

4 - 6 V

114

(GR)

Data link connector

Input/

Output

115

(BR)*

3

(GR)*

4

Sensor ground
(Accelerator pedal position 
sensor 2)

116

(G)

128

(B)

PNP switch

Input

[Ignition switch: ON]
• Selector lever: P or N position

BATTERY VOLTAGE
(11 - 14 V)

[Ignition switch: ON]
• Selector lever: Except above posi-

tion

0 V

117

(BR)

128

(B)

ASCD brake switch

Input

[Ignition switch: ON]
• Brake pedal: Slightly depressed

0 V

[Ignition switch: ON]
• Brake pedal: Fully released

BATTERY VOLTAGE
(11 - 14 V)

118

(R)

128

(B)

Power supply for ECM
(Back-up)

Input

[Ignition switch: OFF]

BATTERY VOLTAGE
(11 - 14 V)

119
(W)

Sensor ground
(Accelerator pedal position 
sensor 1)

120
(W)

128

(B)

Fuel tank temperature sensor

Input

[Engine is running]

0 - 4.8 V
Output voltage varies with fuel 
tank temperature.

121

(GR)

128

(B)

Power supply for ECM

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

Signal name

Input/

Output

 

 

 

 

 

 

 

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