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Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting System -- G37 Coupe >> DTC/Circuit Diagnosis >> Xenon Headlamp >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK XENON BULB

    Install the normal bulb to the applicable headlamp. Check that the xenon bulb is turned ON.

    Is the headlamp turned ON? 

    YES: Replace the xenon bulb.

    NO: GO TO 2.

  2. CHECK HID CONTROL UNIT

    Install the normal HID control unit to the applicable headlamp. Check that the lamp is turned ON.

    Is the headlamp turned ON? 

    YES: Replace HID control unit.

    NO: GO TO 3.

  3. CHECK XENON HEADLAMP HOUSING ASSEMBLY

    Install the normal xenon headlamp housing assembly to the applicable headlamp. Check that the xenon headlamp is turned ON.

    Is the headlamp turned ON? 

    YES: Replace the front combination lamp. (Xenon headlamp housing voltage converter malfunctions.)

    NO: Xenon headlamp is normal. Check the headlamp control system.

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