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Home >> Infiniti >> 2011 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Transfer Case (ATX90A)) >> Symptom Diagnosis >> 4WD Warning Lamp Blinks Slowly >> Diagnosis Procedure

Diagnosis Procedure

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  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 error-detected 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. TERMINAL INSPECTION

    Check 4WD control unit harness connector for disconnection.

    Is the inspection result normal? 

    YES: Replace transfer control unit. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace the error-detected parts.