Infiniti G35 (V35) Sedan. Manual - part 1310

 

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Infiniti G35 (V35) Sedan. Manual - part 1310

 

 

STC-130

< COMPONENT DIAGNOSIS >

[WITH 4WAS]

C1931 4WAS FRONT CONTROL UNIT COMMUNICATION

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace yaw rate/side G sensor.

Special Repair Requirement

INFOID:0000000000958896

BEFORE REPLACING 4WAS FRONT CONTROL UNIT

• Record the self-diagnosis results (history).

CAUTION:

• Replace it without erasing the memory (history) of self-diagnosis results when replacing 4WAS

front control unit after diagnosis.

• Erase the memory of the self-diagnosis results (record) after printing out or recording all the val-

ues of “DATA MONITOR” when erasing the memory of the self-diagnosis results (record).

BEFORE REPLACING 4WAS MAIN CONTROL UNIT

• Record the self-diagnosis results (history).

CAUTION:

• Replace it without erasing the memory (history) of self-diagnosis results when replacing 4WAS

main control unit after diagnosis.

• Erase the memory of the self-diagnosis results (record) after printing out or recording all the val-

ues of “DATA MONITOR” when erasing the memory of the self-diagnosis results (record).

AFTER REPLACING 4WAS FRONT CONTROL UNIT

• Perform 4WAS front actuator adjustment after replacing 4WAS front control unit. Refer to 

STC-28, "4WAS

FRONT ACTUATOR NEUTRAL POSITION ADJUSTMENT : Special Repair Requirement (Pattern 3)"

.

Yaw rate/side G sensor

Resistance (Approx.)

Connector

Terminal

M143

2 – 3

60 

U1000 CAN COMM CIRCUIT

STC-131

< COMPONENT DIAGNOSIS >

[WITH 4WAS]

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000000958897

• CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle

multiplex communication line with high data communication speed and excellent error detection ability. Many
electronic control units are equipped onto a vehicle, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with
less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000000958898

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

RECHECK DTC

 With CONSULT-III

1.

Turn the ignition switch OFF to ON.

2.

Perform 4WAS main control unit self-diagnosis.

Is DTC “U1000” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

STC-131, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000000958899

1.

PERFORM SELF-DIAGNOSIS (4WAS MAIN CONTROL UNIT)

Perform 4WAS main control unit self-diagnosis.

Is DTC “U1000” detected?

YES

>> Perform CAN diagnosis.

NO

>> INSPECTION END.

Special Repair Requirement

INFOID:0000000000958900

BEFORE REPLACING 4WAS MAIN CONTROL UNIT

• Record the self-diagnosis results (history).

CAUTION:

• Replace it without erasing the memory (history) of self-diagnosis results when replacing 4WAS

main control unit after diagnosis.

• Erase the memory of the self-diagnosis results (record) after printing out or recording all the val-

ues of “DATA MONITOR” when erasing the memory of the self-diagnosis results (record).

DTC

Items

(CONSULT-III screen terms)

Diagnostic item is detected when...

Possible cause

U1000

CAN COMM

4WAS main control unit is not transmitting or receiving 
CAN communication signal for 2 seconds or more.

CAN communication er-
ror

STC-132

< COMPONENT DIAGNOSIS >

[WITH 4WAS]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000000958901

• CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle

multiplex communication line with high data communication speed and excellent error detection ability. Many
electronic control units are equipped onto a vehicle, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with
less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000000958902

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

RECHECK DTC

 With CONSULT-III

1.

Turn the ignition switch OFF to ON.

2.

Perform 4WAS main control unit self-diagnosis.

Is DTC “U1010” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

STC-132, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000000958903

1.

4WAS MAIN CONTROL UNIT

Check that there is no malfunction in 4WAS main control unit harness connector or disconnection.

Is the inspection result normal? 

YES

>> Replace 4WAS main control unit. Refer to 

STC-178, "Exploded View"

.

NO

>> Repair or replace the harnesses and connectors. Refer to 

STC-176, "Precautions for Harness

Repair"

.

Special Repair Requirement

INFOID:0000000000958904

BEFORE REPLACING 4WAS MAIN CONTROL UNIT

• Record the self-diagnosis results (history).

CAUTION:

• Replace it without erasing the memory (history) of self-diagnosis results when replacing 4WAS

main control unit after diagnosis.

• Erase the memory of the self-diagnosis results (record) after printing out or recording all the val-

ues of “DATA MONITOR” when erasing the memory of the self-diagnosis results (record).

DTC

Items

(CONSULT-III screen terms)

Diagnostic item is detected when...

Possible cause

U1010

CONTROL UNIT (CAN)

When detecting error during the initial diagnosis of CAN 
controller of 4WAS main control unit.

CAN communication line/ 
4WAS main control unit/
ECM/ABS actuator and 
electric unit (control unit) 
error

POWER SUPPLY AND GROUND CIRCUIT

STC-133

< COMPONENT DIAGNOSIS >

[WITH 4WAS]

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

POWER SUPPLY AND GROUND CIRCUIT

Description

INFOID:0000000000958905

• 4WAS system power supply

Diagnosis Procedure (4WAS Front Control Unit)

INFOID:0000000000958906

1.

CHECK 4WAS FRONT CONTROL UNIT POWER SUPPLY

1.

Turn the ignition switch OFF.

2.

Disconnect 4WAS front control unit harness connector.

3.

Check the voltage between 4WAS front control unit harness connectors and the ground.

4.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

5.

Check the voltage between 4WAS front control unit harness connectors and the ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>>

Check the following items. Repair or replace the malfunctioning parts.

• 40A fusible link (#I) open
- Short among 40A fusible link (#I) connector, 4WAS front control unit harness connector No. 11

terminal and the ground

• Open between the battery and 4WAS front control unit harness connector No. 11 terminal
• 10A fuse (#3) open
- Short among 10A fuse (#3) connector, 4WAS front control unit harness connector No. 15 termi-

nal and the ground

- Short among 10A fuse (#3) connector, unified meter and A/C amp No. 53 terminal and the

ground

• Open between the ignition switch and 4WAS front control unit harness connector No. 15 termi-

nal

• Battery or ignition switch

2.

CHECK 4WAS FRONT CONTROL UNIT GROUND

Check the continuity between 4WAS front control unit harness connector and the ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the harnesses and connectors.

4WAS front control unit

Voltage (Approx.)

Connector

Terminal

M203

11 – Ground

Battery voltage

M204

15 – Ground

0 V

4WAS front control unit

Voltage (Approx.)

Connector

Terminal

M203

11 – Ground

Battery voltage

M204

15 – Ground

4WAS front control unit

Continuity

Connector

Terminal

M204

12 – Ground

Existed

18 – Ground

34 – Ground

 

 

 

 

 

 

 

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