Infiniti G35 (V35) Sedan. Manual - part 401

DLN-38

< SYMPTOM DIAGNOSIS >

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HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS

HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS

Description

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• 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.

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

Diagnosis Procedure

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1.

ECM SELF-DIAGNOSIS

 With CONSULT-III

Perform ECM self-diagnosis.

Is any error system detected?

YES

>> Check the error system.

NO

>> GO TO 2.

2.

SELF-DIAGNOSIS STARTS

 With CONSULT-III

Perform AWD control unit self-diagnosis.

Is DTC “U1000” detected?

YES

>> Check the error system.

NO

>> GO TO 3.

3.

AWD SOLENOID INSPECTION

Perform AWD solenoid trouble diagnosis. Refer to 

DLN-16, "Description"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the specific malfunctioning part.

4.

CHECK ELECTRIC CONTROLLED COUPLING

1.

Turn the ignition switch OFF.

2.

Set the transmission to neutral. Release the parking brake.

3.

Lift up the vehicle.

4.

Rotate the rear propeller shaft.

5.

Hold the front propeller shaft lightly.

Does the front propeller shaft rotate?

YES

>> Replace electric controlled coupling for mechanical malfunction (clutch sticking etc.). Refer to

DLN-69, "Disassembly"

.

NO

>> Check each harness connector pin terminal for disconnection.

VEHICLE DOES NOT ENTER AWD MODE

DLN-39

< SYMPTOM DIAGNOSIS >

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VEHICLE DOES NOT ENTER AWD MODE

Description

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

Diagnosis Procedure

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1.

CHECK AWD WARNING LAMP

Turn the ignition switch ON.

Does AWD warning lamp turn ON?

YES

>> GO TO 2.

NO

>> Go to 

DLN-36, "Description"

.

2.

SELF-DIAGNOSIS STARTS

 With CONSULT-III

Perform AWD control unit self-diagnosis.

Is DTC “U1000” detected?

YES

>> Check the error system.

NO

>> GO TO 3.

3.

CHECK AWD SOLENOID

Perform AWD solenoid trouble diagnosis. Refer to 

DLN-16, "Description"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the specific malfunctioning part.

4.

CRUISE TEST

Drive the vehicle for a period of time.

Does any symptom occur?

YES

>> Replace electric controlled coupling for mechanical malfunction (mechanical engagement of

clutch is not possible). Refer to 

DLN-69, "Disassembly"

.

NO

>> Check each harness connector pin terminal for disconnection.

DLN-40

< SYMPTOM DIAGNOSIS >

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AWD WARNING LAMP BLINKS QUICKLY

AWD WARNING LAMP BLINKS QUICKLY

Description

INFOID:0000000000957271

• While Driving, AWD warning lamp blinks 2 times in 1 second and it turns OFF after 1 minute while driving.
- This symptom protects drivetrain parts when a heavy load is applied to the electric controlled coupling and

multiple disc clutch temperature increases. Also, optional distribution of torque sometimes becomes rigid
before lamp blinks quickly. Both cases are not malfunction.

- When this symptom occurs, stop vehicle and allow it to idle for some times. Blinking will stop and system will

be restored.

AWD WARNING LAMP BLINKS SLOWLY

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< SYMPTOM DIAGNOSIS >

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AWD WARNING LAMP BLINKS SLOWLY

Description

INFOID:0000000000957272

• AWD warning lamp blinks at approximately 2 seconds intervals while driving.

Diagnosis Procedure

INFOID:0000000000957273

1.

CHECK TIRE

• Check the following.
- Tire pressure
- Wear condition
- Longitudinal tire size (There is no difference between longitudinal tires.)

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Drive at vehicle speed of 20 km/h (12 MPH) or more for 5 seconds or more after repairing or

replacing damaged parts. (Initialize improper size tire information.)

2.

CHECK INPUT SIGNAL OF TIRE DIAMETER

 With CONSULT-III

1.

Start engine.

2.

Drive at 20 km/h (12 MPH) or more for approx. 200 seconds.

3.

Check “DIS-TIRE MONI” of AWD control unit CONSULT-III “DATA MONITOR”.

Does the item on “DATA MONITOR” indicate “0 - 4 mm”?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

TERMINAL INSPECTION

Check AWD control unit harness connector for disconnection.
Is the inspection result normal?

YES

>> Replace AWD control unit. Refer to 

DLN-49, "Exploded View"

.

NO

>> Repair or replace the specific malfunctioning part.