Infiniti FX35, FX50 (S51). Manual - part 367

 

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Infiniti FX35, FX50 (S51). Manual - part 367

 

 

CCS-288

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C1F02 ACCELERATOR PEDAL ACTUATOR

C1F02 ACCELERATOR PEDAL ACTUATOR 

Description

INFOID:0000000005501917

• The accelerator pedal actuator is integrated into the accelerator pedal assembly. 
• The accelerator pedal actuator consists of the control unit and motor. 

DTC Logic

INFOID:0000000005501918

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005501919

1.

PERFORM THE SELF-DIAGNOSIS

1.

Start the engine.

2.

Turn the DCA system ON. 

3.

Perform “All DTC Reading” with CONSULT-III. 

4.

Check if the DTC “C1F02” is detected as the current malfunction on the self-diagnosis results of “ICC” or
“ACCELE PEDAL ACT”. 

Is “C1F02” detected as the current malfunction?

YES

>> Replace the accelerator pedal assembly. 

NO

>> INSPECTION END

Special Repair Requirement

INFOID:0000000005501920

DESCRIPTION

The accelerator pedal released position learning is necessary when the following operation is performed. 
• Disconnection and connection of accelerator pedal assembly connector
• Replace accelerator pedal assembly

SPECIAL REPAIR REQUIREMENT

1.

ACCELERATOR PEDAL RELEASED POSITION LEARNING

Perform the accelerator pedal released position learning. Refer to 

EC-25, "ACCELERATOR PEDAL

RELEASED POSITION LEARNING : Description"

 (VQ35HR) or 

EC-581, "ACCELERATOR PEDAL

RELEASED POSITION LEARNING : Description"

 (VK50VE). 

>> GO TO 2.

2.

CHECK DCA SYSTEM

1.

Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to 

CCS-191, "ACTION TEST : Description"

 for action test.)

2.

Check that the DCA system is normal. 

>> WORK END

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

C1F02

(92)

APA C/U MALF

If the accelerator pedal actuator integrated 
control unit error is detected

Accelerator pedal actuator integrated 
control unit malfunction

CCS

C1F03 ACCELERATOR PEDAL ACTUATOR

CCS-289

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

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C1F03 ACCELERATOR PEDAL ACTUATOR 

Description

INFOID:0000000005501921

The accelerator pedal actuator is integrated into with a temperature sensor.

DTC Logic

INFOID:0000000005501922

DTC DETECTION LOGIC

NOTE:

When the accelerator pedal actuator operates excessively, “C1F03” may be detected temporarily. 

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the ignition switch OFF.

2.

Wait for 10 minutes or more and cool the accelerator pedal actuator integrated motor. 

3.

Drive the vehicle with DCA switch ON and operate the system. 

CAUTION:

Always drive safely. 

4.

Stop the vehicle.

5.

Perform “All DTC Reading” with CONSULT-III. 

6.

Check if the DTC “C1F03” is detected as the current malfunction in self-diagnosis results of “ACCELE
PEDAL ACT”. 

Is “C1F03” detected as the current malfunction?

YES

>> Refer to 

CCS-289, "Diagnosis Procedure"

NO

>> Refer to 

GI-36, "Intermittent Incident"

Diagnosis Procedure

INFOID:0000000005501923

1.

REPLACE ACCELERATOR PEDAL ASSEMBLY

Perform DTC confirmation procedure. If “C1F03” is detected, replace the accelerator pedal assembly. Refer to

CCS-289, "DTC Logic"

>> INSPECTION END

Special Repair Requirement

INFOID:0000000005501924

DESCRIPTION

The accelerator pedal released position learning is necessary when the following operation is performed. 
• Disconnection and connection of accelerator pedal assembly connector
• Replace accelerator pedal assembly

SPECIAL REPAIR REQUIREMENT

1.

ACCELERATOR PEDAL RELEASED POSITION LEARNING

Perform the accelerator pedal released position learning. Refer to 

EC-25, "ACCELERATOR PEDAL

RELEASED POSITION LEARNING : Description"

 (VQ35HR) or 

EC-581, "ACCELERATOR PEDAL

RELEASED POSITION LEARNING : Description"

 (VK50VE). 

>> GO TO 2.

2.

CHECK DCA SYSTEM

DTC

Trouble diagnosis 

name

DTC detecting condition

Possible causes

C1F03

APA HI TEMP

If the accelerator pedal actuator integrated motor 
temperature is excessively high

Accelerator pedal actuator integrated 
motor malfunction

CCS-290

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C1F03 ACCELERATOR PEDAL ACTUATOR

1.

Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to 

CCS-191, "ACTION TEST : Description"

 for action test.)

2.

Check that the DCA system is normal. 

>> WORK END

CCS

C1F05 ACCELERATOR PEDAL ACTUATOR POWER SUPPLY CIRCUIT

CCS-291

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

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C1F05 ACCELERATOR PEDAL ACTUATOR POWER SUPPLY CIRCUIT

Description

INFOID:0000000005501925

Power is supplied from ignition power supply and battery power supply to the accelerator pedal actuator. 

DTC Logic

INFOID:0000000005501926

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the DCA system ON. 

3.

Perform “All DTC Reading” with CONSULT-III. 

4.

Check if the “C1F05” is detected as the current malfunction on the self-diagnosis results of “ICC” or
“ACCELE PEDAL ACT”. 

Is “C1F05” detected as the current malfunction?

YES

>> Refer to 

CCS-291, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-36, "Intermittent Incident"

Diagnosis Procedure

INFOID:0000000005501927

1.

CHECK POWER SUPPLY CIRCUIT

Check the accelerator pedal actuator power supply circuit. Refer to 

CCS-319, "ACCELERATOR PEDAL

ACTUATOR : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the accelerator pedal assembly. 

NO

>> Repair or replace the malfunctioning parts. 

Special Repair Requirement

INFOID:0000000005501928

DESCRIPTION

The accelerator pedal released position learning is necessary when the following operation is performed. 
• Disconnection and connection of accelerator pedal assembly connector
• Replace accelerator pedal assembly

SPECIAL REPAIR REQUIREMENT

1.

ACCELERATOR PEDAL RELEASED POSITION LEARNING

Perform the accelerator pedal released position learning. Refer to 

EC-25, "ACCELERATOR PEDAL

RELEASED POSITION LEARNING : Description"

 (VQ35HR) or 

EC-581, "ACCELERATOR PEDAL

RELEASED POSITION LEARNING : Description"

 (VK50VE). 

>> GO TO 2.

2.

CHECK DCA SYSTEM

1.

Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to 

CCS-191, "ACTION TEST : Description"

 for action test.)

2.

Check that the DCA system is normal. 

DTC

(On board 

display)

Trouble diagnosis name

DTC detecting condition

Possible causes

C1F05

(95)

APA PWR SUPLY CIR

The voltage input to accelerator pedal actuator 
is excessively low (approximately 8 V or less) 
or excessively high (approximately 19 V or 
more). 

• Harness, connector, or fuse
• Accelerator pedal actuator

 

 

 

 

 

 

 

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