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.
  1. 10 (BR) - Ground: Battery voltage
  2. 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.
Fig 1: Checking Voltage Between Power Window Main Switch Connector D6, D7 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 D7 terminal 17 and ground.
  1. 17 (B) - Ground: Continuity should exist.
OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace harness.
Fig 2: Checking Continuity Between Power Window Main Switch Connector D7 Terminal 17 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
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.
  1. 53 (Y/B) - 10 (BR): Continuity should exist.
  2. 54 (W) - 19 (W): Continuity should exist.
3. Check continuity between BCM connector M4 terminal 53, 54 and ground.
  1. 53 (Y/B) - Ground: Continuity should not exist.
  2. 54 (W) - Ground: Continuity should not exist.
OK or NG
1. OK: GO TO 4.
2. NG: Repair or replace harness.
Fig 3: Checking Continuity Between BCM Connector M4 Terminal 53, 54 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
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.
  1. 53 (Y/B) - Ground: Battery voltage
  2. 54 (W) - Ground: Battery voltage
OK or NG
1. OK: Check condition of harness and connector.
2. NG: Replace BCM.
Fig 4: Checking Voltage Between BCM Connector M4 Terminal 53, 54 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.