Check Power Window Main Switch Power Supply Circuit

1. Turn ignition switch ON.
2. Check voltage between power window main switch connector D6, D7 terminal 10, 19 and ground.

   10 (BR) - Ground : Battery voltage 

   19 (W) - Ground : Battery voltage 

   Fig 1: Identifying Voltage Between Power Window Main Switch Connector D6, D7 Terminals 10, 19 And Ground

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

OK or NG 

OK: Power window main switch power supply and ground circuit are OK.

NG: GO TO  2.

1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Check continuity between power window main switch connector D7 terminal 17 and ground.

   17 (B) - Ground : Continuity should exist. 

   Fig 2: Identifying Continuity Between Power Window Main Switch Connector D7 Terminal 17 And Ground

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

   OK or NG 

   OK: GO TO  3.

   NG: Repair or replace harness.

1. Disconnect BCM connector.
2. Check continuity between BCM connector M4 terminal 53, 54 and power window main switch connector D6, D7 terminal 10, 19.

   53 (Y/B) - 10 (BR) : Continuity should exist. 

   54 (W) - 19 (W) : Continuity should exist. 

3. Check continuity between BCM connector M4 terminal 53, 54 and ground.

   53 (Y/B) - Ground : Continuity should not exist. 

   54 (W) - Ground : Continuity should not exist. 

   Fig 3: Identifying Continuity Between BCM Connector M4 Terminal 53, 54 And Ground

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

   OK or NG 

   OK: GO TO  4.

   NG: Repair or replace harness.

4. CHECK BCM OUTPUT SIGNAL 
   1. Connect BCM connector.
   2. Turn ignition switch ON.
   3. Check voltage between BCM connector M4 terminal 53, 54 and ground.

      53 (Y/B) - Ground : Battery voltage 

      54 (W) - Ground : Battery voltage 

      Fig 4: Identifying Voltage Between BCM Connector M4 Terminal 53, 54 And Ground

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

   OK or NG 

   OK: Check condition of harness and connector.

   NG: Replace BCM.