Encoder Circuit Check (Driver Side)

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 FRONT POWER WINDOW REGULATOR (DRIVER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between front power window regulator (driver side) connector D8 terminal 4 and ground.
  1. 4 (G/R) - Ground : Approx. 10V
OK or NG
1. OK : GO TO 3 .
2. NG : GO TO 2.
Fig 1: Checking Voltage Between Front Power Window Regulator (Driver Side) Connector D8 Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect front power window regulator (driver side) and power window main switch.
3. Check continuity between power window main switch connector D6 terminal 15 and front power window regulator (driver side) connector D8 terminal 4.
  1. 15 (G/R) - 4 (G/R) : Continuity should exist.
OK or NG
1. OK : Replace power window main switch.
2. NG : Repair or replace harness between power window main switch connector and front power window regulator (driver side) connector.
Fig 2: Checking Continuity Between Power Window Main Switch Connector D6 Terminal 15 And Front Power Window Regulator (Driver Side) Connector D8 Terminal 4
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window regulator (driver side) connector.
3. Check continuity between front power window regulator (driver side) connector D8 terminal 6 and round.
  1. 6 (W/B) - Ground : Continuity should exist.
OK or NG
1. OK : GO TO 5 .
2. NG : GO TO 4.
Fig 3: Checking Continuity Between Front Power Window Regulator (Driver Side) Connector D8 Terminal 6 And Round
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS CONTINUITY 2
1. Disconnect power window main switch connector.
2. Check continuity between power window main switch connector D6 terminal 2 and front power window regulator (driver side) connector D8 terminal 6.
  1. 2 (W/B) - 6 (W/B) : Continuity should exist.
OK or NG
1. OK : Replace power window main switch.
2. NG : Repair or replace harness between power window main switch and front power window regulator (driver side).
Fig 4: Checking Continuity Between Power Window Main Switch Connector D6 Terminal 2 And Front Power Window Regulator (Driver Side) Connector D8 Terminal 6
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER SIGNAL
1. Connect front power window regulator (driver side) connector.
2. Turn ignition switch ON.
3. Check the signal between power window main switch connector and ground with oscilloscope.
Fig 5: Reference Value Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : Replace power window main switch.
2. NG : GO TO 6.
Fig 6: Checking Signal Between Power Window Main Switch Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS CONTINUITY 3
1. Turn ignition switch OFF.
2. Disconnect power window main switch and front power window regulator (driver side) connector.
3. Check continuity between power window main switch connector D6 terminal 13 and front power window regulator (driver side) connector D8 terminal 3.
  1. 13 (G/Y) - 3 (G/Y) : Continuity should exist.
OK or NG
1. OK : Replace front power window regulator (driver side)
2. NG : Repair or replace harness between front power window regulator (driver side) and power window main switch.
Fig 7: Checking Continuity Between Power Window Main Switch Connector D6 Terminal 13 And Front Power Window Regulator (Driver Side) Connector D8 Terminal 3
Courtesy of NISSAN MOTOR CO., U.S.A.