Power Window Main Switch Power Supply Circuit Check

Check Power Supply Circuit
1. Turn ignition switch ON.
2. Check voltage between power window main switch connector D6, D7 terminal 10, 19 and ground.
  
  Fig 1: Checking Voltage At Power Window Main Switch Connector D6 Terminals 10 & 19
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  10 (BR) - Ground: Battery voltage
  
  19 (W) - Ground: Battery voltage
OK or NG
1. OK: Power window main switch power supply and ground circuit are OK.
2. NG: Go to 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 17 and ground.
  
  Fig 2: Checking Continuity Between Power Window Main Switch Connector D7 Terminal 17 And Body Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  17 (B) - Ground: Continuity should exist
OK or NG
1. OK: Go to 3.
2. NG: Repair or replace harness.
Check Harness Continuity
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.
  
  Fig 3: Power Window Main Switch Continuity Testing Procedures
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  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 .
OK or NG
1. OK: Go to 4.
2. NG: Repair or replace harness.
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.
  
  Fig 4: Checking Voltage Between BCM Connector M4 Terminals 53 & 54
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  53 (Y/B) - Ground: Battery voltage
  
  54 (W) - Ground: Battery voltage
OK or NG
1. OK: Check condition of harness and connector.
2. NG: Replace BCM.