Power Window Main Switch Power Supply And Ground Circuit Check

WARNING: This page is about a different car, the 2005 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER SUPPLY CIRCUIT
Check voltage between power window main switch connector D7, D8 terminal 10, 19 and ground.

10 (Y/B) - Ground: Battery voltage

19 (W) - Ground: Battery voltage

OK or NG
1. OK: GO TO 2.
2. NG: GO TO 3.
  
  Fig 1: Voltage Check Between Power Window Main Switch Connector D7, D8 Terminal 10, 19 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Check continuity between power window main switch connector D8 terminal 17 and ground.
  17 (B) - Ground: Continuity should exist.
OK or NG
1. OK: Power window main switch power supply and ground circuits are OK.
2. NG: Repair or replace harness.
  
  Fig 2: Checking Continuity Between Power Window Main Switch Connector D8 Terminal 17 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM connector M2 terminal 53, 54 and power window main switch connector D7, D8 terminal 10, 19.
  53 (Y/B) - 10 (Y/B): Continuity should exist.
  
  54 (W) - 19 (W): Continuity should exist.
3. Check continuity between BCM connector M2 terminal 53, 54 and ground.
  53 (Y/B) - Ground: Continuity should not exist.
  
  54 (W) - Ground: Continuity should not exist.
  
  Fig 3: Checking Continuity Between BCM Connector M2 Terminal 53, 54 And Power Window Main Switch Connector D7, D8 Terminal 10, 19
  Courtesy of NISSAN MOTOR CO., U.S.A.
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 M2 terminal 53, 54 and ground.
  53 (Y/B) - Ground: Battery voltage
  
  54 (W) - Ground: Battery voltage
OK or NG
1. OK: Check the condition of the harness and the connector.
2. NG: Replace BCM.
  
  Fig 4: Check Voltage Between BCM Connector M2 Terminal 53, 54 And Ground Table
  Courtesy of NISSAN MOTOR CO., U.S.A.