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Home >> Infiniti >> 2008 >> G35 x >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Heater & Air Conditioning Control System) >> Component Diagnosis >> Power Supply And Ground Circuit For Controller >> A/C Auto Amp. Component Function Check >> Inspection Flow

Inspection Flow

WARNING: This page is about a different car, the 2008 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - AUTO MODE
    1. Press AUTO switch.
    2. Display should indicate AUTO. Confirm that the compressor clutch engages (sound or visual inspection). (Discharge air and blower speed will depend on ambient, in-vehicle and set temperatures.)

    Can a symptom be duplicated? 

    YES: GO TO  3.

    NO: GO TO 2.

  2. PERFORM COMPLETE OPERATIONAL CHECK

    Perform a complete operational check and check for any symptoms. Refer to "OPERATIONAL CHECK (FRONT) ".

    Can a symptom be duplicated? 

    YES: Refer to "HOW TO PERFORM TROUBLE DIAGNOSIS FOR QUICK AND ACCURATE REPAIR ".

    NO: System OK.

  3. CHECK FOR SERVICE BULLETINS

    Check for any service bulletins.

    GO TO 4.

  4. CHECK POWER AND GROUND CIRCUIT

    Check main power supply and ground circuit. Refer to "A/C AUTO AMP POWER AND GROUND DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES: System OK.

    NO: Replace A/C auto amp. Refer to "REMOVAL AND INSTALLATION ".

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