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Home >> Infiniti >> 2009 >> G37 Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Steering >> Steering Control Systems >> Steering Control System -- Convertible >> Symptom Diagnosis >> Unbalance Steering Wheel Turning Force (Torque Variation) >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK SYSTEM FOR POWER SUPPLY AND GROUND

    Perform trouble diagnosis for power supply and ground. Refer to "DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair or replace error-detected parts.

  2. CHECK SYSTEM FOR VEHICLE SPEED SIGNAL

    Perform trouble diagnosis for vehicle speed signal. Refer to "DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Repair or replace error-detected parts.

  3. CHECK SYSTEM FOR ENGINE SPEED SIGNAL

    Perform trouble diagnosis for engine speed signal. Refer to "DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair or replace error-detected parts.

  4. CHECK SYSTEM FOR POWER STEERING SOLENOID VALVE

    Perform trouble diagnosis for power steering solenoid valve. Refer to "DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES: Perform the symptom diagnosis for the steering system. Refer to "NVH TROUBLESHOOTING CHART ".

    NO: Repair or replace error-detected parts.