Main Power Window and Door Lock/Unlock Switch Power Supply Circuit Check (Without Rear Power Vent Windows)

1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/unlock switch connector D7 terminals 1, 10 and ground.
   • 10 (W/L) - Ground: Battery voltage 
   • 1 (W/R) - Ground: Battery voltage 

OK or NG

• OK: GO TO 2.
• NG: Repair or replace harness.
  Fig 1: Checking Voltage Between Terminals 1, 10 & Ground

  Courtesy of NISSAN MOTOR CO., U.S.A.

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 D7 terminal 15 and ground.
   • 15 (B) - Ground: Continuity should exist. 

OK or NG

• OK: GO TO 3.
• NG: Repair or replace harness.
  Fig 2: Checking Continuity Between Terminal 15 & Ground

  Courtesy of NISSAN MOTOR CO., U.S.A.

1. Disconnect BCM.
2. Check continuity between BCM connector M19 terminals 53, 54 and main power window and door lock/unlock switch connector D7 terminals 1, 10.
   • 53 (W/L) - 10 (W/L): Continuity should exist. 
   • 54 (W/R) - 1 (W/R): Continuity should exist. 

OK or NG

• OK: GO TO 4.
• NG: Repair or replace harness.
  Fig 3: Checking Continuity Between Terminals 53, 54 & Terminals 1, 10

  Courtesy of NISSAN MOTOR CO., U.S.A.

1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M19 terminals 53, 54 and ground.
   • 53 (W/L) - Ground: Battery voltage 
   • 54 (W/R) - Ground: Battery voltage 

OK or NG

• OK: Check the condition of the harness and the connector.
• NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
  Fig 4: Checking Voltage Between BCM Connector M19 Terminals 53, 54 & Ground

  Courtesy of NISSAN MOTOR CO., U.S.A.