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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Component Testing >> Electrical Load Signal >> Diagnosis Procedure
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Diagnosis Procedure

  1. INSPECTION START 

    Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to "COMPONENT FUNCTION CHECK ".

    Which circuit is related to the incident? 

    Rear window defogger: GO TO 2.

    Headlamp: GO TO  3.

    Heater fan: GO TO  4.

  2. CHECK REAR WINDOW DEFOGGER SYSTEM 

    Refer to "WORK FLOW ".

    : INSPECTION END

  3. CHECK HEADLAMP SYSTEM 

    Refer to "WORK FLOW ".

    : INSPECTION END

  4. CHECK HEATER FAN CONTROL SYSTEM 

    Refer to "DIAGNOSIS AND REPAIR WORK FLOW ".

    : INSPECTION END