Power Window Switch Power Supply 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.

POWER SUPPLY CIRCUIT CHECK
1. Turn ignition switch ON.
2. Check voltage between power window main switch connector D7 terminal 1, 10 and ground.
  1 (W) - Ground: Battery voltage
  
  10 (P) - Ground: Battery voltage
  
  Fig 1: Checking Voltage Between Power Window Main Switch Connector D7 Terminal 1, 10 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between power window sub-switch connector D43 terminal 10 and ground.
  10 (W) - Ground: Battery voltage
OK or NG
1. OK: Power window switch power supply is OK.
2. NG: GO TO 2.
Fig 2: Checking Voltage Between Power Window Sub-Switch Connector D43 Terminal 10 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK POWER WINDOW SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM, power window main switch and power window sub-switch connector.
3. Check continuity between BCM connector M2 terminal 53, 54, power window main switch connector D7 terminal 1, 10, and between BCM connector M2 terminal 53, 54 and ground.
  BCM - Power window main switch
  
  53 (Y/B) - 10 (P): Continuity should exist.
  
  54 (W) - 1 (W): Continuity should exist.
  
  BCM - 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, Power Window Main Switch Connector D7 Terminal And Between BCM Connector M2 Terminal And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between BCM connector M2 terminal 54, power window sub- switch connector D43 terminal 10, and between BCM connector M2 terminal 54 and ground.
  BCM - Power window sub-switch
  
  54 (W) - 10 (W): Continuity should exist.
  
  BCM - Ground
  
  54 (W) - Ground: Continuity should not exist.
  
  Fig 4: Checking Continuity Between BCM Connector M2 Terminal, Power Window Sub- Switch Connector D43 Terminal And Between BCM Connector M2 Terminal And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
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: INSPECTION END
2. NG: Replace BCM.
Fig 5: Checking Voltage Between BCM Connector M2 Terminal 53, 54 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.