Infiniti G35 (V35) Sedan. Manual - part 400

DLN-34

< ECU DIAGNOSIS >

[TRANSFER: ETX13B]

AWD CONTROL UNIT

U1000

CAN COMM CIRCUIT

DLN-21, "Description"

U1010

CONTROL UNIT (CAN)

DLN-22, "Description"

DTC

Items

(CONSULT-III screen terms)

Reference

AWD SYSTEM SYMPTOMS

DLN-35

< SYMPTOM DIAGNOSIS >

[TRANSFER: ETX13B]

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SYMPTOM DIAGNOSIS

AWD SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000000957262

If AWD warning lamp turns ON, perform self-diagnosis.

NOTE:

Light tight-corner braking symptom may occur depending on driving conditions. This is not malfunction.

Symptom

Condition

Check item

Reference

AWD warning lamp does not turn ON when 
the ignition switch is turned to ON.
(AWD warning lamp check)

Ignition switch: ON

Unified meter and A/C amp.

DLN-36, "De-

scription"

CAN communication line

Combination meter

AWD warning lamp does not turn OFF sev-
eral seconds after engine started.

Engine running

AWD control unit self-diagnosis

DLN-37, "De-

scription"

AWD warning lamp

Power supply and ground for AWD con-
trol unit

Heavy tight-corner braking symptom occurs 
when the vehicle is driven and the steering 
wheel is turned fully to either side after the 
engine is started. (See NOTE.)

• While driving
• Steering wheel is 

turned fully to either 
sides

ECM self-diagnosis

DLN-38, "De-

scription"

AWD control unit self-diagnosis

AWD solenoid

Mechanical malfunction of electric con-
trolled coupling (clutch sticking etc.)

Vehicle does not enter AWD mode even 
though AWD warning lamp turned to OFF.

While driving

CAN communication line

DLN-39, "De-

scription"

AWD solenoid

Mechanical malfunction of electric con-
trolled coupling (Mechanical engage-
ment of clutch is not possible.)

While driving, AWD warning lamp blinks 
quickly. (When blinking in approx. 1 minute 
and then turning OFF.)
Quick blinking: 2 times/second

While driving

Protection function is activated due to 
heavy load to electric controlled cou-
pling. (AWD system is not malfunction-
ing. Also, optional distribution of torque 
sometimes becomes rigid before lamp 
blinks quickly, but it is not malfunction.)

DLN-40, "De-

scription"

While driving, AWD warning lamp blinks 
slowly. (When continuing to blink until turn-
ing ignition switch OFF)
Slow blinking: 1 time/2 seconds

• While driving
• Vehicle speed: 20 km/h 

(12 MPH) or more

Tire size is different between front and 
rear of vehicle.

DLN-41, "De-

scription"

DLN-36

< SYMPTOM DIAGNOSIS >

[TRANSFER: ETX13B]

AWD WARNING LAMP DOES NOT TURN ON

AWD WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000000957263

• AWD warning lamp does not turn ON when the ignition switch is turned to ON.

Diagnosis Procedure

INFOID:0000000000957264

1.

CHECK AWD WARNING LAMP

Perform trouble diagnosis for AWD warning lamp. Refer to 

DLN-25, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check each harness connector pin terminal for disconnection.

NO

>> Repair or replace damaged parts.

AWD WARNING LAMP DOES NOT TURN OFF

DLN-37

< SYMPTOM DIAGNOSIS >

[TRANSFER: ETX13B]

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AWD WARNING LAMP DOES NOT TURN OFF

Description

INFOID:0000000000957265

• AWD warning lamp does not turn OFF several seconds after engine started.

Diagnosis Procedure

INFOID:0000000000957266

1.

SELF-DIAGNOSIS START

 With CONSULT-III

Perform AWD control unit self-diagnosis.

Is any error system detected?

YES

>> Check the error system.

NO

>> GO TO 2.

2.

CHECK AWD WARNING LAMP

Perform AWD warning lamp trouble diagnosis. Refer to 

DLN-25, "Description"

.

Is the inspection result normal?

YES

>> Repair or replace the specific malfunctioning part.

NO

>> GO TO 3.

3.

AWD CONTROL UNIT POWER SUPPLY INSPECTION

Perform AWD control unit power supply trouble diagnosis. Refer to 

DLN-23, "Description"

.

Is the inspection result normal?

YES

>> Check each harness connector pin terminal for disconnection.

NO

>> Repair or replace the specific malfunctioning part.