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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 >> AFS Control Unit >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

  1. CHECK FUSES

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

      Signal name Fuse No. Capacity
      Ignition power supply 14 5 A
      2.0L TURBO GASOLINE ENGINE MODELS

      Signal name Fuse No. Capacity
      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 AFS control unit connector.
    2. Turn ignition switch ON.
    3. Check voltage between AFS control unit harness connector and ground.
      + - Voltage
      AFS control unit
      Connector Terminal
      M4 12 Ground 9 - 16 V

    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 AFS control unit harness connector and ground.
      AFS control unit - Continuity
      Connector Terminal
      M4 11 Ground Existed

    Is the inspection result normal?

    YES 

    Power supply and ground circuit are normal.

    NO 

    Repair or replace harness.