Infiniti QX56 (Z62). Manual - part 215

CCS

C1A40 SYSTEM SWITCH CIRCUIT

CCS-127

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

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4.

CHECK IBA OFF SWITCH GROUND CIRCUIT

Check for continuity between IBA OFF switch harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair the harnesses or connectors.

5.

CHECK IBA OFF SWITCH

1.

Turn the ignition switch OFF.

2.

Disconnect the IBA OFF switch connector. 

3.

Check the IBA OFF switch. Refer to 

CCS-127, "Component Inspection (IBA OFF Switch)"

. 

Is the inspection result normal?

YES

>> Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

.

NO

>> Replace the IBA OFF switch.

Component Inspection (IBA OFF Switch)

INFOID:0000000006224371

1.

CHECK IBA OFF SWITCH

Check for continuity of IBA OFF switch. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the IBA OFF switch. 

IBA OFF switch

Ground

Continuity

Connector

Terminal

M93

6

Existed

Terminal

Condition

Continuity

6

7

When the IBA OFF switch is pressed

Existed

When the IBA OFF switch is released

Not existed

CCS-128

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

C1A50 ADAS CONTROL UNIT

C1A50 ADAS CONTROL UNIT

DTC Logic

INFOID:0000000006224372

DTC DETECTION LOGIC

NOTE:
If DTC “C1A50” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-145, "ICC

SENSOR : DTC Logic"

. 

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the MAIN switch of ICC system ON.

3.

Perform “All DTC Reading” with CONSULT-III. 

4.

Check if the “C1A50” is detected as the current malfunction in “Self Diagnostic Result” of “LASER”. 

Is “C1A50” detected as the current malfunction?

YES

>> Refer to 

CCS-128, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000006224373

1.

CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1A50” in “Self Diagnostic Result” of “LASER”. 

Is “U1000” detected?

YES

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

Refer to 

CCS-145, "ICC SENSOR : DTC Logic"

. 

NO

>> GO TO 2.

2.

CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self Diagnostic Result” of “ICC/ADAS”. 

Is any DTC detected?

YES

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

CCS-50, "DTC Index"

. 

NO

>> Replace the ICC sensor. Refer to 

CCS-176, "Exploded View"

. 

DTC

Trouble diagnosis name

DTC detecting condition

Possible cause

C1A50

ADAS MALFUNCTION

If ADAS control unit is malfunctioning

ADAS control unit

CCS

C1F01 ACCELERATOR PEDAL ACTUATOR

CCS-129

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

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C1F01 ACCELERATOR PEDAL ACTUATOR

DTC Logic

INFOID:0000000006224374

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the ignition switch OFF.

2.

Turn the ignition switch ON. 

3.

Slowly depress the accelerator pedal completely, and then release it. 

4.

Repeat step 3 several times. 

5.

Perform “All DTC Reading” with CONSULT-III. 

6.

Check if the DTC “C1F01” is detected as the current malfunction on the self-diagnosis results of “ICC/
ADAS”.

Is “C1F01” detected as the current malfunction?

YES

>> Refer to 

CCS-129, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000006224375

1.

CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1F01” 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 “C1F01” is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”. 

Is “C1F01” detected?

YES

>> Refer to 

DAS-166, "ACCELERATOR PEDAL ACTUATOR : 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

C1F01

(91)

APA MOTOR MALF

If the accelerator pedal actuator motor error 
is detected

Accelerator pedal actuator integrated 
motor malfunction

CCS-130

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

C1F02 ACCELERATOR PEDAL ACTUATOR

C1F02 ACCELERATOR PEDAL ACTUATOR

DTC Logic

INFOID:0000000006224376

DTC DETECTION LOGIC

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 “C1F02” is detected as the current malfunction on the self-diagnosis results of “ICC/ADAS”. 

Is “C1F02” detected as the current malfunction?

YES

>> Refer to 

CCS-130, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000006224377

1.

CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1F02” 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 “C1F02” is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”. 
Is “C1F02” detected?

YES

>> Refer to 

DAS-166, "ACCELERATOR PEDAL ACTUATOR : 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

C1F02

(92)

APA C/U MALF

If the accelerator pedal actuator integrated 
control unit error is detected

Accelerator pedal actuator integrated 
control unit malfunction