Infiniti G37 Coupe. Manual — part 314

CCS

C1A33 CAN TRANSMISSION ERROR

CCS-69

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

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C1A33 CAN TRANSMISSION ERROR

Description

INFOID:0000000001685791

ICC sensor integrated unit transmits a signal required by ICC system to ECM with CAN communication.
NOTE:
If DTC C1A33 is detected along with DTC U1000, first diagnose the DTC U1000. Refer to

CCS-79,

"Diagnosis Procedure"

.

DTC Logic

INFOID:0000000001685792

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001685793

1.

PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT

1.

Perform self-diagnosis of ICC sensor integrated unit.

2.

Check if DTC “CAN COMM CIRCUIT [U1000]” (DTC 100) other than “CAN TRANSMISSION ERROR
[C1A33]” (DTC 33) is detected.

Is any DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CAN COMMUNICATION INSPECTION

Perform the CAN communication system inspection. Repair or replace the applicable item. Refer to

CCS-79,

"Diagnosis Procedure"

.

>> GO TO 4.

3.

REPLACE ICC SENSOR INTEGRATED UNIT

1.

Replace ICC sensor integrated unit.

2.

Adjust laser beam aiming. Refer to

CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair

Requirement (Preparation)"

.

>> GO TO 4.

4.

CHECK ICC SYSTEM

1.

Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to

CCS-11, "ACTION TEST : Special Repair

Requirement (Vehicle-To-Vehicle Distance Control Mode)"

).

2.

Check that no abnormal condition is present in the ICC system.

>> INSPECTION END

DTC No.

(On board

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

C1A33

(33)

CAN TRANSMISSIN ERROR

If an error occurs in CAN communication signal
that ICC sensor integrated unit transmits to ECM

ICC sensor integrated unit

CCS-70

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C1A34 COMMAND ERROR

C1A34 COMMAND ERROR

Description

INFOID:0000000001685794

ICC sensor integrated unit sends command signal required for ECM control with CAN communication.
NOTE:
If DTC C1A34 is detected along with DTC U1000, first diagnose the DTC U1000. Refer to

CCS-79,

"Diagnosis Procedure"

.

DTC Logic

INFOID:0000000001685795

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001685796

1.

PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT

1.

Perform self-diagnosis of ICC sensor integrated unit.

2.

Check if DTC “CAN COMM CIRCUIT [U1000]” (DTC 100) other than “COMMAND ERROR [C1A34]”
(DTC 34) is detected.

Is any DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CAN COMMUNICATION INSPECTION

Perform the CAN communication system inspection. Repair or replace the applicable item. Refer to

CCS-79,

"Diagnosis Procedure"

.

>> GO TO 4.

3.

REPLACE ICC SENSOR INTEGRATED UNIT

1.

Replace ICC sensor integrated unit.

2.

Adjust laser beam aiming. Refer to

CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair

Requirement (Preparation)"

.

>> GO TO 4.

4.

CHECK ICC SYSTEM

1.

Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to

CCS-11, "ACTION TEST : Special Repair

Requirement (Vehicle-To-Vehicle Distance Control Mode)"

).

2.

Check that no abnormal condition is present in the ICC system.

>> INSPECTION END

DTC No.

(On board

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

C1A34

(34)

COMMAND ERROR

If an error occurs in the command signal that ICC
sensor integrated unit transmits to ECM with CAN
communication

ICC sensor integrated unit

CCS

U0121 VDC CAN 2

CCS-71

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

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U0121 VDC CAN 2

Description

INFOID:0000000001606925

ABS actuator and electric unit (control unit) transmits VDC system signal to ICC sensor integrated unit with
CAN communication.
NOTE:
If DTC U0121 is detected along with DTC U1000, first diagnose the DTC U1000. Refer to

CCS-79,

"Diagnosis Procedure"

.

DTC Logic

INFOID:0000000001606926

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001606927

1.

PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT

1.

Perform self-diagnosis of ICC sensor integrated unit.

2.

Check if DTC “CAN COMM CIRCUIT [U1000]” (DTC 100) other than “VDC CAN CIR2 [U0121]” (DTC
127) is detected.

Is any DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CAN COMMUNICATION INSPECTION

Perform the CAN communication system inspection. Repair or replace the applicable item. Refer to

CCS-79,

"Diagnosis Procedure"

.

>> GO TO 6.

3.

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

1.

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

2.

Check if DTC is detected. Refer to

BRC-88, "DTC No. Index"

.

Is any DTC detected?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

REPAIR OR REPLACE APPLICABLE ITEM

Repair or replace the applicable item identified by the self-diagnosis result.

>> GO TO 6.

5.

REPLACE ICC SENSOR INTEGRATED UNIT

1.

Replace ICC sensor integrated unit.

2.

Adjust laser beam aiming. Refer to

CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair

Requirement (Preparation)"

.

>> GO TO 6.

6.

CHECK ICC SYSTEM

DTC No.

(On board

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

U0121

(127)

VDC CAN CIR2

When a mismatch occurs between a VDC system
signal transmitted from ABS actuator electric unit
(control unit) and a VDC system signal received by
ICC sensor integrated unit.

ABS actuator and electric unit (control
unit)

CCS-72

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

U0121 VDC CAN 2

1.

Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to

CCS-11, "ACTION TEST : Special Repair

Requirement (Vehicle-To-Vehicle Distance Control Mode)"

).

2.

Check that no abnormal condition is present in the ICC system.

>> INSPECTION END