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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 >> Power Supply And Ground Circuit >> Sunroof Motor Assembly >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

  1. CHECK POWER SUPPLY

    1. Turn ignition switch OFF.
    2. Disconnect sunroof motor assembly harness connector.
    3. Check voltage between sunroof motor assembly harness connector and ground.
    (+) (-) Condition Voltage (V)
    Sunroof motor assembly
    Connector Terminal
    R10 3 Ground Ignition switch is OFF and 45 seconds are passed 0
    When driver side or passenger side door is opened during retained power operation
    Ignition switch ON 9 - 16
    Within 45 seconds after ignition switch is turned to OFF
    6 Ignition switch ON 9 - 16

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 2  .

  2. CHECK POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect BCM harness connector.
    3. Check continuity between BCM harness connector and sunroof motor assembly harness connector.
      BCM Sunroof motor assembly Continuity
      Connector Terminal Connector Terminal
      M17 140 R10 3 Existed
      141 6
    4. Check continuity between sunroof motor assembly harness connector and ground.
      Sunroof motor assembly Ground Continuity
      Connector Terminal
      R10 3 Not existed
      6

    Is the inspection result normal?

    YES 

    Check BCM power supply and ground circuit. Refer to DIAGNOSIS PROCEDURE .

    NO 

    Repair or replace harness.

  3. CHECK GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Check continuity between sunroof motor assembly harness connector and ground.
    Sunroof motor assembly Ground Continuity
    Connector Terminal
    R10 1 Existed

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Repair or replace harness.