Infiniti G35 (V35) Sedan. Manual - part 290

CCS

U0121 VDC CAN 2

CCS-71

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

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

CCS-72

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

U0401 ECM CAN 1

U0401 ECM CAN 1

Description

INFOID:0000000000965452

ICC sensor integrated unit and ECM exchange ECM system-related signals with CAN communication. 
NOTE:
If DTC U0401 is detected along with DTC U1000, first diagnose the DTC U1000. Refer to 

CCS-78,

"Diagnosis Procedure"

.

DTC Logic

INFOID:0000000000965453

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000965454

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 “ECM CAN CIR1 [U0401]” (DTC
120) 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-78,

"Diagnosis Procedure"

.

>> GO TO 6.

3.

PERFORM SELF-DIAGNOSIS OF ECM

1.

Perform self-diagnosis of ECM.

2.

Check if DTC is detected. Refer to 

EC-521, "DTC 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

U0401

(120)

ECM CAN CIR1

When a counter value of CAN signals received 
from ECM does not change.

ECM

CCS

U0401 ECM CAN 1

CCS-73

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

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

CCS-74

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

U0402 TCM CAN 1

U0402 TCM CAN 1

Description

INFOID:0000000000965455

TCM transmits A/T control system signal to ICC sensor integrated unit with CAN communication.
NOTE:
If DTC U402 is detected along with DTC U1000, first diagnose the DTC U1000. Refer to 

CCS-78,

"Diagnosis Procedure"

.

DTC Logic

INFOID:0000000000965456

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000965457

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 “TCM CAN CIR1 [U0402]” (DTC
122) 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-78,

"Diagnosis Procedure"

.

>> GO TO 6.

3.

PERFORM SELF-DIAGNOSIS OF TCM

1.

Perform self-diagnosis of TCM.

2.

Check if DTC is detected. Refer to 

TM-189, "DTC 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

U0402

(122)

TCM CAN CIR1

When a counter value of CAN signals received 
from TCM does not change.

TCM