Power Window Main Switch Power Supply Circuit Check

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between power window main switch connector D6, D7 terminals 10, 19 and ground.
  1. 10 (W/L) - Ground : Battery voltage
  2. 19 (W/R) - Ground : Battery voltage
OK or NG
1. OK : Power window main switch power supply and ground circuit is OK.
2. NG : GO TO 2.
Fig 1: Checking Voltage Between Power Window Main Switch Connector D6, D7 Terminals 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 M35 terminals 28, 29 and power window main switch connector D6, D7 terminal 10, 19.
  1. 28 (W/R) - 19 (W/R) : Continuity should exist.
  2. 29 (W/L) - 10 (W/L) : Continuity should exist.
OK or NG
1. OK : GO TO 4.
2. NG : Repair or replace harness between BCM and power window main switch.
Fig 3: Checking Continuity Between BCM Connector M35 Terminals 28, 29 And Power Window Main Switch Connector D6, D7 Terminal 10, 19
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 M35 terminal 28, 29 and ground.
  1. 28 (W/R) - Ground : Battery voltage
  2. 29 (W/L) - Ground : Battery voltage
OK or NG
1. OK : Check the condition of the harness and the connector.
2. NG : Replace BCM.
Fig 4: Checking Voltage Between BCM Connector M35 Terminal 28, 29 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.