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Home >> Infiniti >> 2015 >> Q50 Base, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Transfer Case (Exc Hybrid)) >> Symptom Diagnosis >> Heavy Tight-Corner Braking Symptom Occurs >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

  1. PERFORM ECM SELF-DIAGNOSIS

    With CONSULT 

    Perform self-diagnosis for "ENGINE".

    Is any DTC detected?

    YES 

    Check the DTC. Refer to DTC INDEX .

    NO 

    GO TO STEP 2  .

  2. PERFORM SELF-DIAGNOSIS

    With CONSULT 

    Perform self-diagnosis for "ALL MODE AWD/4WD".

    Is DTC "U1000" detected?

    YES 

    Proceed to DIAGNOSIS PROCEDURE .

    NO 

    GO TO STEP 3  .

  3. CHECK TRANSFER FLUID TEMPERATURE SENSOR

    Perform the trouble diagnosis of the transfer fluid temperature sensor. Refer to DIAGNOSIS PROCEDURE .

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace the error-detected parts.

  4. CHECK AWD SOLENOID

    Perform the trouble diagnosis of the AWD solenoid. Refer to DIAGNOSIS PROCEDURE .

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace the error-detected parts.

  5. 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 EXPLODED VIEW .

    NO 

    Check each harness connector pin terminal for disconnection.

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