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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 >> Power Supply And Ground Circuit >> High Beam Assist Control Module >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

  1. CHECK FUSES

    1. Turn ignition switch OFF.
    2. Check that the following fuses are not blown (open).
      VR30DDTT ENGINE MODELS

      Signal name Fuse No. Capacity
      Battery power supply 4 5 A
      Ignition power supply 12 10 A
      2.0L TURBO GASOLINE ENGINE MODELS

      Signal name Fuse No. Capacity
      Battery power supply 85 10 A
      Ignition power supply 77 10 A

    Is the fuse blown (open)?

    YES 

    Replace the blown fuse after repairing the affected circuit if a fuse is blown (open).

    NO 

    GO TO STEP 2  .

  2. CHECK POWER SUPPLY CIRCUIT

    1. Disconnect auto anti - dazzling inside mirror connector.
    2. Turn ignition switch ON.
    3. Check voltage between auto anti - dazzling inside mirror harness connector and ground.
      + - Voltage
      Auto anti - dazzling inside mirror
      Connector Terminal
      R9 6 Ground 9 - 16 V
      10

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace harness.

  3. CHECK GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Check continuity between auto anti - dazzling inside mirror harness connector and ground.
      Auto anti - dazzling inside mirror - Continuity
      Connector Terminal
      R9 3 Ground Existed

    Is the inspection result normal?

    YES 

    Power supply and ground circuit are normal.

    NO 

    Repair or replace harness.