Infiniti FX35, FX50 (S51). Manual - part 368

CCS-292

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C1F05 ACCELERATOR PEDAL ACTUATOR POWER SUPPLY CIRCUIT

>> WORK END

CCS

C1F06 CAN CIRCUIT2

CCS-293

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

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C1F06 CAN CIRCUIT2

Description

INFOID:0000000005501929

• ITS communication is a multiplex communication system. This enables the system to transmit and receive

large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit,
and accelerator pedal actuator with 2 communication lines.

• ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

DTC Logic

INFOID:0000000005501930

DTC DETECTION LOGIC

NOTE:
If DTC “C1F06” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-313, "ICC

SENSOR INTEGRATED UNIT : DTC 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 “C1F06” is detected as the current malfunction in self-diagnosis results of “ACCELE PEDAL
ACT”. 

Is “C1F06” detected as the current malfunction?

YES

>> Refer to 

CCS-293, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-36, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000005501931

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1F06” in “Self Diagnostic Result” of “ACCELE PEDAL ACT”. 

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to 

CCS-313, "ICC SENSOR INTEGRATED UNIT : DTC Logic"

. 

NO

>> GO TO 2.

2.

REPLACE ICC SENSOR INTEGRATED UNIT

1.

Turn the ignition switch OFF.

2.

Replace the ICC sensor integrated unit. Refer to 

CCS-380, "Exploded View"

. 

3.

Erases All self-diagnosis results. 

4.

Perform “All DTC Reading” again. 

5.

Check if the “C1F06” is detected in self-diagnosis results of “ACCELE PEDAL ACT”. 

Is “C1F06” detected?

YES

>> Replace the accelerator pedal assembly. 

NO

>> INSPECTION END

Special Repair Requirement

INFOID:0000000005501932

DESCRIPTION

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed. 

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

C1F06

CAN CIR 2

If accelerator pedal actuator detects an error 
signal that is received from ICC sensor inte-
grated unit via ITS communication

ICC sensor integrated unit malfunction

CCS-294

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C1F06 CAN CIRCUIT2

• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit
Check the operation after performing the accelerator pedal released position learning when the following oper-
ation is performed. 
• Disconnection and connection of accelerator pedal position sensor connector
• Replace accelerator pedal assembly

SPECIAL REPAIR REQUIREMENT

1.

CHECK CONTROL UNIT REPLACED, REMOVED AND/OR INSTALLED

Perform the adjustment work after the replacement or removal and installation of ICC sensor integrated unit,
replacement of accelerator pedal assembly, or disconnection or connection of accelerator pedal position sen-
sor connector. 

Which is replaced, removed or installed?

ICC sensor integrated unit>>GO TO 2.
Accelerator pedal assembly>>GO TO 3.

2.

LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT

Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to 

CCS-13, "LASER BEAM AIMING

ADJUSTMENT : Description"

. 

>> GO TO 4.

3.

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 4.

4.

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

CCS

C1F07 CAN CIRCUIT1

CCS-295

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

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C1F07 CAN CIRCUIT1

Description

INFOID:0000000005501933

• ITS communication is a multiplex communication system. This enables the system to transmit and receive

large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit,
and accelerator pedal actuator with 2 communication lines.

• ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

DTC Logic

INFOID:0000000005501934

DTC DETECTION LOGIC

NOTE:
If DTC “C1F07” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-313, "ICC

SENSOR INTEGRATED UNIT : DTC 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 “C1F07” is detected as the current malfunction in self-diagnosis results of “ACCELE PEDAL
ACT”. 

Is “C1F07” detected as the current malfunction?

YES

>> Refer to 

CCS-295, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-36, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000005501935

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1F07” in “Self Diagnosis Result” of “ACCELE PEDAL ACT”. 

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to 

CCS-313, "ICC SENSOR INTEGRATED UNIT : DTC Logic"

. 

NO

>> GO TO 2.

2.

REPLACE ICC SENSOR INTEGRATED UNIT

1.

Turn the ignition switch OFF.

2.

Replace the ICC sensor integrated unit. Refer to 

CCS-380, "Exploded View"

. 

3.

Erases All self-diagnosis results. 

4.

Perform “All DTC Reading” again. 

5.

Check if the “C1F07” is detected in self-diagnosis results of “ACCELE PEDAL ACT”. 

Is “C1F07” detected?

YES

>> Replace the accelerator pedal assembly. 

NO

>> INSPECTION END

Special Repair Requirement

INFOID:0000000005501936

DESCRIPTION

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed. 

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

C1F07

CAN CIR 1

If accelerator pedal actuator detects an error 
signal that is received from ICC sensor inte-
grated unit via ITS communication

ICC sensor integrated unit malfunction