Infiniti G35 (V35) Sedan. Manual - part 571

EC-430

< COMPONENT DIAGNOSIS >

[VQ35HR]

P2127, P2128 APP SENSOR

YES

>> Go to 

EC-430, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000000956837

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection M95. Refer to Ground Inspection in 

GI-42, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I

1.

Disconnect accelerator pedal position (APP) sensor harness connector.

2.

Turn ignition switch ON.

3.

Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 3.

3.

CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between APP sensor harness connector and ECM harness connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors M6, E106
• Harness for open or short between ECM and accelerator pedal position sensor

>> Repair open circuit.

5.

CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-III

Check harness for short to power and short to ground, between the following terminals.

APP sensor

Ground

Voltage

Connector

Terminal

E112

6

Ground

Approx. 5V

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E112

6

M107

103

Existed

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

F101

46

CKP sensor (POS)

F2

1

F102

64

CMP sensor (PHASE) (bank 2)

F18

1

EVT control position sensor (bank 2)

F19

1

Battery current sensor

E21

1

P2127, P2128 APP SENSOR

EC-431

< COMPONENT DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair short to ground or short to power in harness or connectors.

6.

CHECK COMPONENTS

Check the following.
• Crankshaft position sensor (POS) (Refer to 

EC-257, "Component Inspection"

.)

• Camshaft position sensor (PHASE) (bank 2) (Refer to 

EC-262, "Component Inspection"

.)

• Exhaust valve timing control position sensor (bank 2) (Refer to 

EC-350, "Component Inspection"

.)

• Battery current sensor (Refer to 

EC-381, "Component Inspection"

.)

• EVAP control system pressure sensor (Refer to 

EC-298, "Component Inspection"

.)

• Refrigerant pressure sensor (Refer to 

HAC-92, "Component Inspection"

.)

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Replace malfunctioning component.

7.

CHECK APP SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between APP sensor harness connector and ECM harness connector.

4.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors M6, E106
• Harness for open or short between ECM and accelerator pedal position sensor

>> Repair open circuit or short to ground or short to power in harness or connectors.

9.

CHECK APP SENSOR 2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check the continuity between APP sensor harness connector and ECM harness connector.

2.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 10.

10.

DETECT MALFUNCTIONING PART

Check the following.

M107

103

APP sensor

E112

6

107

EVAP control system pressure sensor

B252

3

111

Refrigerant pressure sensor

E77

3

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E112

2

M107

104

Existed

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E112

1

M107

98

Existed

EC-432

< COMPONENT DIAGNOSIS >

[VQ35HR]

P2127, P2128 APP SENSOR

• Harness connectors M6, E106
• Harness for open or short between ECM and accelerator pedal position sensor

>> Repair open circuit or short to ground or short to power in harness or connectors.

11.

CHECK APP SENSOR

Refer to 

EC-432, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> GO TO 12.

12.

REPLACE ACCELERATOR PEDAL ASSEMBLY

1.

Replace accelerator pedal assembly.

2.

Go to 

EC-432, "Special Repair Requirement"

.

>> INSPECTION END

13.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000000956838

1.

CHECK ACCELERATOR PEDAL POSITION SENSOR

1.

Turn ignition switch OFF.

2.

Reconnect all harness connectors disconnected.

3.

Turn ignition switch ON.

4.

Check the voltage ECM harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE ACCELERATOR PEDAL ASSEMBLY

1.

Replace accelerator pedal assembly.

2.

Go to 

EC-432, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000000956839

1.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

Refer to 

EC-17, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement"

.

>> GO TO 2.

2.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

ECM

Ground

Condition

Voltage

Connector

Terminal

M107

97 (APP sensor 1)

Ground

Accelerator pedal

Fully released

0.5 - 1.0V

Fully depressed

4.2 - 4.8V

98 (APP sensor 2)

Fully released

0.25 - 0.50V

Fully depressed

2.0 - 2.5V

P2127, P2128 APP SENSOR

EC-433

< COMPONENT DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Refer to 

EC-18, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"

.

>> GO TO 3.

3.

PERFORM IDLE AIR VOLUME LEARNING

Refer to 

EC-18, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"

.

>> END