Encoder Circuit Check (Driver Side)

CHECK FRONT POWER WINDOW MOTOR (DRIVER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between front power window motor (driver side) connector D8 terminal 4 and ground.
  1. 4 (W) - Ground: Approx. 10V
OK or NG
1. OK: GO TO 3 .
2. NG: GO TO 2.
Fig 1: Checking Voltage Between Front Power Window Motor (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 power window main switch and front power window motor (driver side).
3. Check continuity between power window main switch connector D6 terminal 15 and front power window motor (driver side) connector D8 terminal 4.
  1. 15 (W) - 4 (W): Continuity should exist.
OK or NG
1. OK: Replace power window main switch.
2. NG: Repair or replace harness.
Fig 2: Checking Harness Continuity
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor (driver side) connector.
3. Check continuity between front power window motor (driver side) connector D8 terminal 6 and ground.
  1. 6 (SB) - 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 Motor (Driver Side) Connector D8 Terminal 6 And Ground
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 motor (driver side) connector D8 terminal 6.
  1. 2 (SB) - 6 (SB): Continuity should exist.
OK or NG
1. OK: Replace power window main switch.
2. NG: Repair or replace harness.
Fig 4: Checking Harness Continuity 2
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER SIGNAL
1. Connect front power window motor (driver side) connector.
2. Turn ignition switch ON.
3. Check signal between power window main switch connector and ground with oscilloscope.
  
  Fig 5: Connector Terminal Wire Color Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Signal Between Power Window Main Switch Connector And Ground With Oscilloscope
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace power window main switch.
2. NG: GO TO 6.
CHECK HARNESS CONTINUITY 3
1. Turn ignition switch OFF.
2. Disconnect power window main switch and front power window motor (driver side) connector.
3. Check continuity between power window main switch connector D6 terminal 13 and front power window motor (driver side) connector D8 terminal 3.
  1. 13 (PU) - 3 (PU): Continuity should exist.
OK or NG
1. OK: Replace front power window motor (driver side).
2. NG: Repair or replace harness.
Fig 7: Checking Harness Continuity 3
Courtesy of NISSAN MOTOR CO., U.S.A.