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Home >> Infiniti >> 2015 >> Q50 Base, RWD >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Roof (Sunroof) (Exc Hybrid) >> DTC/Circuit Diagnosis >> Vehicle Speed Signal Circuit >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

  1. CHECK VEHICLE SPEED SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect sunroof motor assembly harness connector and combination meter harness connector.
    3. Check continuity between sunroof motor assembly harness connector and combination meter harness connector.
      Sunroof motor assembly Combination meter Continuity
      Connector Terminal Connector Terminal
      R10 8 M57 38 Existed
    4. Check continuity between sunroof motor assembly harness connector and ground.
      Sunroof motor assembly Ground Continuity
      Connector Terminal
      R10 8 Not existed

    Is the inspection result normal?

    YES 

    Check combination meter. Refer to DTC DESCRIPTION .

    NO 

    Repair or replace harness.