Encoder Circuit Check (Driver Side)/With Front Left and Right Power Window Anti-Pinch

WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER WINDOW REGULATOR (FRONT DRIVER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between power window regulator (front driver side) connector D9 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 Connector D9 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect power window regulator (front driver side) and power window main switch.
3. Check continuity between power window regulator (front driver side) connector D9 terminal 4 and power window main switch connector D7 terminal 7.
  1. 4 (G/R) - 7 (G/R): Continuity should exist.
Fig 2: Checking Continuity Between Connector D9 And Connector D7
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : Replace power window main switch.
2. NG : Repair or replace harness between power window regulator (front driver side) connector and power window main switch connector.
CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Disconnect power window regulator (front driver side) connector.
3. Check continuity between power window regulator (front driver side) connector D9 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 Connector D9 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER GROUND CIRCUIT
1. Disconnect power window main switch connector.
2. Check continuity between power window regulator (front driver side) connector D9 terminal 6 and power window main switch connector D8 terminal 17.
  1. 6 (W/B) - 17 (W/B): Continuity should exist.
OK or NG
1. OK : Replace power window main switch.
2. NG : Repair or replace harness between power window regulator (front driver side) and power window main switch.
Fig 4: Checking Continuity Between Connector D9 And Connector D8
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER SIGNAL
1. Connect power window regulator (front driver side) connector.
2. Turn ignition switch ON.
3. Check the signal between power window main switch connector and ground with oscilloscope.
Fig 5: Encoder Signal Reference Data Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 6: Checking Signal Between Power Window Main Switch Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : Replace power window main switch.
2. NG : GO TO 6.
CHECK ENCODER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window regulator (front driver side) and power window main switch connector.
3. Check continuity between power window regulator (front driver side) connector D9 terminal 3 and power window main switch connector D7 terminal 14.
  1. 3 (G/Y) - 14 (G/Y): Continuity should exist.
OK or NG
1. OK : Replace power window regulator (front driver side)
2. NG : Repair or replace harness between power window regulator (front driver side) and power window main switch.
Fig 7: Checking Continuity Between Connector D9 And Connector D7
Courtesy of NISSAN MOTOR CO., U.S.A.