Infiniti QX56 (Z62). Manual - part 218

CCS

U0402 TCM CAN 1

CCS-139

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

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U0402 TCM CAN 1

DTC Logic

INFOID:0000000006224394

DTC DETECTION LOGIC

NOTE:
If DTC “U0402” 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 MAIN switch of ICC system ON. 

3.

Perform “All DTC Reading” with CONSULT-III. 

4.

Check if the “U0402” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”. 

Is “U0402” detected as the current malfunction?

YES

>> Refer to 

CCS-139, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000006224395

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U0402” 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 TCM SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self Diagnostic Result” of “TRANSMISSION”. 

Is any DTC detected?

YES

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

TM-78, "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

U0402

(122)

TCM CAN CIRC1

If ADAS control unit detects an error signal 
that is received from TCM via CAN communi-
cation

TCM

CCS-140

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

U0405 ADAS CAN 2

U0405 ADAS CAN 2

DTC Logic

INFOID:0000000006224396

DTC DETECTION LOGIC

NOTE:
If DTC “U0405” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-145, "ICC

SENSOR : DTC Logic"

. 

DTC CONFIRMATION PROCEDURE

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 “U0405” is detected as the current malfunction in “Self Diagnostic Result” of “LASER”. 

Is “U0405” detected as the current malfunction?

YES

>> Refer to 

CCS-140, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

. 

Diagnosis Procedure

INFOID:0000000006224397

1.

CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U0405” 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 causes

U0405

ADAS CAN CIR 2

If ICC sensor detects an error signal that is re-
ceived from ADAS control unit via ITS commu-
nication

ADAS control unit

CCS

U0415 VDC CAN 1

CCS-141

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

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U0415 VDC CAN 1

ADAS CONTROL UNIT

ADAS CONTROL UNIT : DTC Logic

INFOID:0000000006224398

DTC DETECTION LOGIC

NOTE:
If DTC “U0415” 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 MAIN switch of ICC system ON. 

3.

Perform “All DTC Reading” with CONSULT-III. 

4.

Check if the “U0415” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”. 

Is “U0415” detected as the current malfunction?

YES

>> Refer to 

CCS-141, "ADAS CONTROL UNIT : Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

.

ADAS CONTROL UNIT : Diagnosis Procedure

INFOID:0000000006224399

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U0415” 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 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self Diagnostic Result” of “ABS”. 

Is any DTC detected?

YES

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

BRC-51, "DTC Index"

. 

NO

>> Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

. 

ICC SENSOR

ICC SENSOR : DTC Logic

INFOID:0000000006224400

DTC DETECTION LOGIC

NOTE:
If DTC “U0415” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to 

CCS-145, "ICC

SENSOR : DTC Logic"

. 

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

U0415

(126)

VDC CAN CIR1

If ADAS control unit detects an error signal 
that is received from ABS actuator and electric 
unit (control unit) via CAN communication

ABS actuator and electric unit (control 
unit)

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

U0415

VDC CAN CIR1

If ICC sensor detects an error signal that is re-
ceived from ABS actuator and electric unit 
(control unit) via ADAS control unit

ABS actuator and electric unit (control 
unit)

CCS-142

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

U0415 VDC CAN 1

DTC CONFIRMATION PROCEDURE

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 “U0415” is detected as the current malfunction in “Self Diagnostic Result” of “LASER”. 

Is “U0415” detected as the current malfunction?

YES

>> Refer to 

CCS-142, "ICC SENSOR : Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

.

ICC SENSOR : Diagnosis Procedure

INFOID:0000000006224401

1.

CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U0415” 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"

.