Infiniti QX56 (Z62). Manual — part 212

CCS

C1A26 ECD MODE MALFUNCTION

CCS-115

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

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C1A26 ECD MODE MALFUNCTION

DTC Logic

INFOID:0000000006224347

DTC DETECTION LOGIC

NOTE:
If DTC “C1A26” is detected along with DTC “U1000”, “U0415” or “U0121” first diagnose the DTC “U1000”,
“U0415” or “U0121”.
• DTC “U1000”: Refer to

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

.

• DTC “U0415”: Refer to

CCS-141, "ADAS CONTROL UNIT : DTC Logic"

.

• DTC “U0121”: Refer to

CCS-133, "ADAS CONTROL UNIT : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Wait for approximately 1 minute after turning the MAIN switch of ICC system ON.

3.

Perform “All DTC Reading” with CONSULT-III.

4.

Check if the “C1A26” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1A26” detected as the current malfunction?

YES

>> Refer to

CCS-115, "Diagnosis Procedure"

.

NO

>> Refer to

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006224348

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000”, “U0415” or “U0121” is detected other than “C1A26” 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

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

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 ADAS control unit. Refer to

DAS-63, "Removal and Installation"

.

DTC

(On board

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

C1A26

(26)

ECD MODE MALF

If an abnormal condition occurs with ECD system

ABS actuator and electric unit (control
unit)

CCS-116

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

C1A27 ECD POWER SUPPLY CIRCUIT

C1A27 ECD POWER SUPPLY CIRCUIT

DTC Logic

INFOID:0000000006224349

DTC DETECTION LOGIC

NOTE:
If DTC “C1A27” is detected along with DTC “U1000”, “U0415” or “U0121” first diagnose the DTC “U1000”,
“U0415” or “U0121”.
• DTC “U1000”: Refer to

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

.

• DTC “U0415”: Refer to

CCS-141, "ADAS CONTROL UNIT : DTC Logic"

.

• DTC “U0121”: Refer to

CCS-133, "ADAS CONTROL UNIT : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Wait for approximately 1 minute after turning the MAIN switch of ICC system ON.

3.

Perform “All DTC Reading” with CONSULT-III.

4.

Check if the “C1A27” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1A27” detected as the current malfunction?

YES

>> Refer to

CCS-116, "Diagnosis Procedure"

.

NO

>> Refer to

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006224350

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000”, “U0415” or “U0121” is detected other than “C1A27” 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

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Check power supply circuit of ABS actuator and electric unit (control unit). Refer to

BRC-113, "Diagnosis Pro-

cedure"

.

Is the inspection result normal?

YES

>> Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to

BRC-51, "DTC

Index"

.

NO

>> Repair the harnesses or connectors.

DTC

(On board

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

C1A27

(27)

ECD PWR SUPLY CIR

ECD system power supply voltage is excessively
low

• ABS actuator and electric unit (con-

trol unit) power supply circuit

• ABS actuator and electric unit (con-

trol unit)

CCS

C1A2A ICC SENSOR POWER SUPPLY CIRCUIT

CCS-117

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

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C1A2A ICC SENSOR POWER SUPPLY CIRCUIT

DTC Logic

INFOID:0000000006224351

DTC DETECTION 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 “C1A2A” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1A2A” detected as the current malfunction?

YES

>> Refer to

CCS-117, "Diagnosis Procedure"

.

NO

>> Refer to

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006224352

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1A2A” 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-145, "ADAS CONTROL UNIT : DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK ICC SENSOR SELF-DIAGNOSIS

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

Is any DTC detected?

YES

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

CCS-55, "DTC Index"

.

NO

>> Replace ADAS control unit. Refer to

DAS-63, "Removal and Installation"

.

DTC

(On board

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

C1A2A

(80)

ICC SEN PWR SUP CIR

Abnormal power supply voltage in ICC sensor

• Harness, connector, fuse
• ICC sensor

CCS-118

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

C1A33 CAN TRANSMISSION ERROR

C1A33 CAN TRANSMISSION ERROR

DTC Logic

INFOID:0000000006224353

DTC DETECTION LOGIC

NOTE:
If DTC “C1A33” 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 “C1A33” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1A33” detected as the current malfunction?

YES

>> Refer to

CCS-118, "Diagnosis Procedure"

.

NO

>> Refer to

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006224354

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1A33” 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

C1A33

(33)

CAN TRANSMISSION
ERR

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

ADAS control unit