Encoder Circuit Check (Rear LH or RH) / With Front and Rear Power Window Anti-Pinch System

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REAR POWER WINDOW MOTOR (LH OR RH) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between rear power window switch connector D58 (LH), D78 (RH) terminal 4 and ground.
  1. 4 (PU) - Ground: Approx. 10V
OK or NG
1. OK: GO TO 2.
2. NG: Replace rear power window switch (LH or RH).
Fig 1: Checking Voltage Between Rear Power Window Switch Connector D58 (LH), D78 (RH) Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window motor (LH or RH) connector.
3. Check continuity between rear power window motor (LH or RH) connector D59 (LH), D79 (RH) terminal 4 and ground.
  1. 4 (OR) - Ground: Continuity should exist.
OK or NG
1. OK: GO TO 4 .
2. NG: GO TO 3.
Fig 2: Checking Continuity Between Rear Power Window Motor (LH Or RH) Connector D59 (LH), D79 (RH) Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS CONTINUITY 1
1. Disconnect rear power window switch (LH or RH) connector.
2. Check continuity between rear power window switch (LH or RH) connector D58 (LH), D78 (RH) terminal 3 and rear power window motor (LH or RH) connector D59 (LH), D79 (RH) terminal 4.
  1. 3 (OR) - 4 (OR): Continuity should exist.
OK or NG
1. OK: Replace rear power window switch (LH or RH).
2. NG: Repair or replace harness.
Fig 3: Checking Harness Continuity 1
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER SIGNAL
1. Connect rear power window motor (LH or RH) connector.
2. Turn ignition switch ON.
3. Check signal between rear power window switch (LH or RH) connector and ground with oscilloscope.
  
  Fig 4: Connector Terminal Wire Color Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Signal Between Rear Power Window Switch (LH Or RH) Connector And Ground With Oscilloscope
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace rear power window switch (LH or RH).
2. NG: GO TO 5.
CHECK HARNESS CONTINUITY 2
1. Turn ignition switch OFF.
2. Disconnect rear power window switch (LH or RH) and rear power window motor (LH or RH) connector.
3. Check continuity between rear power window switch (LH or RH) connector D58 (LH), D78 (RH) terminal 12 and rear power window motor (LH or RH) connector D59 (LH), D79 (RH) terminal 5.
  1. 12 (GY) - 5 (GY): Continuity should exist.
OK or NG
1. OK: Replace rear power window motor (LH or RH).
2. NG: Repair or replace harness.
Fig 6: Checking Harness Continuity 2
Courtesy of NISSAN MOTOR CO., U.S.A.