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Power Window Main Switch Power Supply and Ground Circuit Check

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK POWER SUPPLY CIRCUIT 
    1. Turn ignition switch ON.
    2. Check voltage between power window main switch connector D7 terminals 1, 10 and ground.
      • 1 (W) - Ground: Battery voltage 
      • 10 (SB) - Ground: Battery voltage 

    OK or NG 

    • OK: GO TO 2.
    • NG: GO TO  3.
    Fig 1: Power Window Main Switch Connector D7 Terminals 1, 10 & Ground Voltage Test
    G02404676Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch connector.
    3. Check continuity between power window main switch connector D7 terminal 15 and ground.
      • 15 (B) - Ground: Continuity should exist. 

    OK or NG 

    • OK: Power window main switch power supply and ground circuits are OK.
    • NG: Repair or replace harness.
    Fig 2: Power Window Main Switch Connector D7 Terminal 15 & Ground Continuity Test
    G02404677Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect BCM and power window main switch connector.
    3. Check continuity between BCM connector M91 terminals 53, 54 and power window main switch connector D7 terminal 1, 10.
      • 53 (Y/B) - 10 (SB): Continuity should exist. 
      • 54 (W) - 1: Continuity should exist. 
    4. Check continuity between BCM connector M91 terminals 53, 54 and ground.
      • 53 (Y/B) - Ground: Continuity should not exist. 
      • 54 (W) - Ground: Continuity should not exist. 

    OK or NG 

    • OK: GO TO 4.
    • NG: Repair or replace harness.
    Fig 3: BCM Connector M91 Terminals 53, 54 & Power Window Main Switch Connector D7 Terminal 1, 10 Continuity Test
    G02404678Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK BCM OUTPUT SIGNAL 
    1. Connect BCM connector.
    2. Turn ignition switch ON.
    3. Check voltage between BCM connector M91 terminals 53, 54 and ground.
      • 53 (Y/B) - Ground: Battery voltage 
      • 54 (W) - Ground: Battery voltage 

    OK or NG 

    • OK: Check condition of harness and connector.
    • NG: Replace BCM.
    Fig 4: BCM Connector M91 Terminals 53, 54 & Ground Voltage Test
    G02404679Courtesy of NISSAN MOTOR CO., U.S.A.
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