Infiniti EX35. Manual - part 521

 

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Infiniti EX35. Manual - part 521

 

 

DLN-34

< SYMPTOM DIAGNOSIS >

[TRANSFER: ETX13B]

HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS

HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS

Description

INFOID:0000000003561242

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

INFOID:0000000003561243

1.

PERFORM ECM SELF-DIAGNOSIS

With CONSULT-III

Perform ECM self-diagnosis.

Is any DTC detected?

YES

>> Check the DTC.

NO

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS

With CONSULT-III

Perform AWD control unit self-diagnosis.

Is DTC “U1000” detected?

YES

>> CAN specification chart. Refer to 

LAN-18, "Trouble Diagnosis Flow Chart"

.

NO

>> GO TO 3.

3.

CHECK AWD SOLENOID

Perform the trouble diagnosis of the AWD solenoid. Refer to 

DLN-15, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the 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-64, "Exploded View"

.

NO

>> Check each harness connector pin terminal for disconnection.

VEHICLE DOES NOT ENTER AWD MODE

DLN-35

< SYMPTOM DIAGNOSIS >

[TRANSFER: ETX13B]

C

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B

DLN

N

O

P

VEHICLE DOES NOT ENTER AWD MODE

Description

INFOID:0000000003561244

Vehicle does not enter 4-wheel drive mode even though AWD warning lamp turned to OFF.

Diagnosis Procedure

INFOID:0000000003561245

1.

CHECK AWD WARNING LAMP

Turn the ignition switch ON.

Does AWD warning lamp turn ON?

YES

>> GO TO 2.

NO

>> Proceed to diagnosis procedure. Refer to 

DLN-23, "Diagnosis Procedure"

.

2.

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-64, "Exploded View"

.

NO

>> Check each harness connector pin terminal for disconnection.

DLN-36

< SYMPTOM DIAGNOSIS >

[TRANSFER: ETX13B]

AWD WARNING LAMP BLINKS QUICKLY

AWD WARNING LAMP BLINKS QUICKLY

Description

INFOID:0000000003561246

While driving, AWD warning lamp blinks 2 times in 1 second and it turns OFF after 1 minute.
• 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

DLN-37

< SYMPTOM DIAGNOSIS >

[TRANSFER: ETX13B]

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DLN

N

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AWD WARNING LAMP BLINKS SLOWLY

Description

INFOID:0000000003561247

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

Diagnosis Procedure

INFOID:0000000003561248

1.

CHECK TIRE

Check the following.
• Tire pressure
• Wear condition
• Front and rear tire size (There is no difference between front and rear tires.)

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts. And then, drive the vehicle at speed of 20 km/h (12 MPH) or

more for 5 seconds or more. Improper size information is initialized accordingly.

2.

CHECK INPUT SIGNAL OF TIRE DIAMETER

With CONSULT-III

1.

Start the engine.

2.

Drive at 20 km/h (12 MPH) or more for approximately 4 minutes.

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-44, "Exploded View"

.

NO

>> Repair or replace the malfunctioning part.

 

 

 

 

 

 

 

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