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Home >> Infiniti >> 2016 >> Q50 Base, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Exterior Lighting System (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> Headlamp Warning >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

  1. CHECK HEADLAMP WARNING LAMP SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect front combination lamp connector.
    3. Turn ignition switch ON.
    4. Check voltage between front combination lamp harness connector and ground.
      + - Voltage
      (Approx.)
      Front combination lamp
      Connector Terminal Ground 12 V
      RH E42 2
      LH E41

    Is the inspection result normal?

    YES 

    Replace front combination lamp. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 2  .

  2. CHECK HEADLAMP WARNING LAMP SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect combination meter connector.
    3. Check continuity between combination meter harness connector and front combination lamp harness connector.
      Combination meter Front combination lamp Continuity
      Connector Terminal Connector Terminal
      RH M57 12 E42 2 Existed
      LH 13 E41

    Is the inspection result normal?

    YES 

    Replace combination lamp. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness.