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Main Power Window and Door Lock/Unlock Switch Power Supply and Ground Circuit Inspection

  1. CHECK POWER SUPPLY CIRCUIT
    1. Turn ignition switch ON.
    2. Check voltage between main power window and door lock/unlock switch connector D5 terminal 10, D11 terminal 19 and ground.

      10 - Ground : Battery voltage 

      19 - Ground : Battery voltage 

      Fig 1: Checking Voltage Between Main Power Window And Door Lock/Unlock Switch Connector D5 Terminal 10, D11 Terminal 19 And Ground
      G04902737Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: GO TO 2.

      NG: GO TO  3.

  2. CHECK GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect main power window and door lock/unlock switch.
    3. Check continuity between main power window and door lock/unlock switch connector and ground.
      CONTINUITY SPECIFICATIONS

      Connector Terminals Continuity
      D5 17 Ground Yes
      Fig 2: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector Terminal 17 & Ground
      G05922828Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: Power supply and ground circuit are OK.

      NG: Repair or replace harness.

  3. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect BCM and main power window and door lock/unlock switch.
    3. Check continuity between BCM connector (A) and main power window and door lock/unlock switch connector (B).
      Fig 3: Checking Continuity Between BCM Connector (A) And Main Power Window And Door Lock/Unlock Switch Connector (B)
      G04902739Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY SPECIFICATIONS

      Connector Terminal Connector Terminal Continuity
      A B
      M20 68 D5 10 Yes
      69 C 19 Yes
      D11
    4. Check continuity between BCM connector (A) and ground.
      CONTINUITY SPECIFICATIONS

      Connector Terminal Ground Continuity
      A
      M20 68 No
      69 No

      OK or NG 

      OK: GO TO 4.

      NG: Repair or replace harness.

  4. CHECK BCM OUTPUT SIGNAL
    1. Connect BCM.
    2. Turn ignition switch ON.
    3. Check voltage between BCM connector M20 terminal 68, 69 and ground.

      68 - Ground : Battery voltage 

      69 - Ground : Battery voltage 

      Fig 4: Checking Voltage Between BCM Connector M20 Terminal 68, 69 And Ground
      G04902740Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: Check the condition of the harness and the connector.

      NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".

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