Infiniti QX56 (Z62). Manual - part 213

CCS

C1A34 COMMAND ERROR

CCS-119

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

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C1A34 COMMAND ERROR

DTC Logic

INFOID:0000000006224355

DTC DETECTION LOGIC

NOTE:
If DTC “C1A34” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-145,

"ADAS CONTROL UNIT : DTC Logic"

. 

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Operate the ICC system and drive. 

CAUTION:

Always drive safely. 

3.

Stop the vehicle.

4.

Perform “All DTC Reading” with CONSULT-III. 

5.

Check if the “C1A34” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”. 

Is “C1A34” detected as the current malfunction?

YES

>> Refer to 

CCS-119, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000006224356

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1A34” in “Self Diagnostic Result” of “ICC/ADAS”. 

Is “U1000” detected?

YES

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

Refer to 

CCS-145, "ADAS CONTROL UNIT : DTC Logic"

. 

NO

>> Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

. 

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

C1A34

(34)

COMMAND ERROR

If an error occurs in the command signal that 
ADAS control unit transmits to ECM via CAN 
communication

ADAS control unit

CCS-120

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

C1A35 ACCELERATOR PEDAL ACTUATOR

C1A35 ACCELERATOR PEDAL ACTUATOR

DTC Logic

INFOID:0000000006224357

DTC DETECTION LOGIC

NOTE:
If DTC “C1A35” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-145,

"ADAS CONTROL UNIT : DTC Logic"

. 

Diagnosis Procedure

INFOID:0000000006224358

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 “C1A35” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”. 

Is “C1A35” detected as the current malfunction?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1A35” in “Self Diagnostic Result” of “ICC/ADAS”. 
Is “U1000” detected?

YES

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

Refer to 

CCS-145, "ADAS CONTROL UNIT : DTC Logic"

. 

NO

>> GO TO 3.

3.

CHECK ACCELERATOR PEDAL ACTUATOR SELF-DIAGNOSIS RESULTS

Check if the DTC is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”. 
Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to

DAS-108, "DTC Index"

.

NO

>> Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

. 

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

C1A35

(35)

APA CIR

If the accelerator pedal actuator is malfunc-
tioning

Accelerator pedal actuator

CCS

C1A36 ACCELERATOR PEDAL ACTUATOR CAN COMM

CCS-121

< DTC/CIRCUIT DIAGNOSIS >

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C1A36 ACCELERATOR PEDAL ACTUATOR CAN COMM

DTC Logic

INFOID:0000000006224359

DTC DETECTION LOGIC

NOTE:
If DTC “C1A36” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-145,

"ADAS CONTROL 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 “C1A36” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”. 

Is “C1A36” detected as the current malfunction?

YES

>> Refer to 

CCS-121, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000006224360

1.

CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1A36” in “Self Diagnostic Result” of “ICC/ADAS”. 

Is “U1000” detected?

YES

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

Refer to 

CCS-145, "ADAS CONTROL UNIT : DTC Logic"

. 

NO

>> GO TO 2.

2.

CHECK ACCELERATOR PEDAL ACTUATOR SELF-DIAGNOSIS RESULTS

Check if the DTC is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”. 

Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to

DAS-108, "DTC Index"

.

NO

>> Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

. 

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

C1A36

(36)

APA CAN COMM CIR

If an error occurs in the signal that the accel-
erator pedal actuator transmits via ITS com-
munication

• ADAS control unit
• Accelerator pedal actuator
• ITS communication system

CCS-122

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

C1A37 ACCELERATOR PEDAL ACTUATOR CAN 2

C1A37 ACCELERATOR PEDAL ACTUATOR CAN 2

DTC Logic

INFOID:0000000006224361

DTC DETECTION LOGIC

NOTE:
If DTC “C1A37” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-145,

"ADAS CONTROL 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 “C1A37” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”. 

Is “C1A37” detected as the current malfunction?

YES

>> Refer to 

CCS-122, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000006224362

1.

CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1A37” in “Self Diagnostic Result” of “ICC/ADAS”. 

Is “U1000” detected?

YES

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

Refer to 

CCS-145, "ADAS CONTROL UNIT : DTC Logic"

. 

NO

>> GO TO 2.

2.

REPLACE ACCELERATOR PEDAL ASSEMBLY

1.

Turn the ignition switch OFF.

2.

Replace the accelerator pedal assembly. 

3.

Turn the ignition switch ON.

4.

Erases all self-diagnosis results. 

5.

Perform “All DTC Reading” again. 

6.

Check if the DTC “C1A37” is detected in self-diagnosis results of “ICC/ADAS”. 

Is “C1A37” detected?

YES

>> Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

. 

NO

>> INSPECTION END

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

C1A37

(133)

APA CAN CIR2

If ADAS control unit detects an error signal 
that is received from accelerator pedal actu-
ator via ITS communication

Accelerator pedal actuator malfunction