Infiniti FX35, FX50 (S51). Manual — part 371

CCS-304

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

U0401 ECM CAN 1

Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to

CCS-13, "LASER BEAM AIMING

ADJUSTMENT : Description"

.

>> GO TO 2.

2.

CHECK DCA SYSTEM

1.

Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to

CCS-191, "ACTION TEST : Description"

for action test.)

2.

Check that the DCA system is normal.

>> WORK END

CCS

U0402 TCM CAN 1

CCS-305

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

U0402 TCM CAN 1

Description

INFOID:0000000005501953

TCM transmits the signal related to A/T control to ICC sensor integrated unit via CAN communication.

DTC Logic

INFOID:0000000005501954

DTC DETECTION LOGIC

NOTE:
If DTC “U0402” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to

CCS-313, "ICC

SENSOR INTEGRATED UNIT : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

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 “U0402” is detected as the current malfunction in self-diagnosis results of “ICC”.

Is “U0402” detected as the current malfunction?

YES

>> Refer to

CCS-305, "Diagnosis Procedure"

.

NO

>> Refer to

GI-36, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000005501955

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U0402” in “Self Diagnostic Result” of “ICC”.
Is “U1000” detected?

YES

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

Refer to

CCS-313, "ICC SENSOR INTEGRATED 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-150, "DTC Index"

(VQ35HR) or

TM-332, "DTC Index"

(VK50VE).

NO

>> Replace the ICC sensor integrated unit. Refer to

CCS-380, "Exploded View"

.

Special Repair Requirement

INFOID:0000000005501956

DESCRIPTION

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed.
• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit

SPECIAL REPAIR REQUIREMENT

1.

LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT

DTC

(On board dis-

play)

Trouble diagnosis

name

DTC detecting condition

Possible causes

U0402

(122)

TCM CAN CIR1

If ICC sensor integrated unit detects an error
signal that is received from TCM via CAN
communication

TCM

CCS-306

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

U0402 TCM CAN 1

Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to

CCS-13, "LASER BEAM AIMING

ADJUSTMENT : Description"

.

>> GO TO 2.

2.

CHECK DCA SYSTEM

1.

Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to

CCS-191, "ACTION TEST : Description"

for action test.)

2.

Check that the DCA system is normal.

>> WORK END

CCS

U0415 VDC CAN 1

CCS-307

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

U0415 VDC CAN 1

Description

INFOID:0000000005501957

ABS actuator and electric unit (control unit) transmits the signal related to the VDC system to ICC sensor inte-
grated unit via CAN communication.

DTC Logic

INFOID:0000000005501958

DTC DETECTION LOGIC

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

CCS-313, "ICC

SENSOR INTEGRATED UNIT : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

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 “U0415” is detected as the current malfunction in self-diagnosis results of “ICC”.

Is “U0415” detected as the current malfunction?

YES

>> Refer to

CCS-307, "Diagnosis Procedure"

.

NO

>> Refer to

GI-36, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000005501959

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U0415” in “Self Diagnostic Result” of “ICC”.

Is “U1000” detected?

YES

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

Refer to

CCS-313, "ICC SENSOR INTEGRATED 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-119, "DTC Index"

.

NO

>> Replace the ICC sensor integrated unit. Refer to

CCS-380, "Exploded View"

.

Special Repair Requirement

INFOID:0000000005501960

DESCRIPTION

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed.
• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit

SPECIAL REPAIR REQUIREMENT

DTC

(On board dis-

play)

Trouble diagnosis name

DTC detecting condition

Possible causes

U0415

(126)

VDC CAN CIR1

If ICC sensor integrated unit detects an error
signal that is received from ABS actuator and
electric unit (control unit) via CAN communica-
tion

ABS actuator and electric unit (control
unit)