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 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check the signal between power window sub-switch (rear LH or RH) connector D55 (LH), D75 (RH) and ground with oscilloscope.
  
  Fig 1: Power Window Sub-Switch (Rear LH Or RH) Connector D55, D75 & Ground Signal Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Signal Between Power Window Sub-Switch (Rear LH Or RH) Connector D55, D75 & Ground With Oscilloscope
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Encoder sw circuit is OK
2. NG: GO TO 2.
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect power window sub-switch (rear LH or RH) and power window motor (rear LH or RH).
3. Check continuity between power window sub-switch (rear LH or RH) connector D55 (LH), D75 (RH) terminal 19 and power window motor (rear LH or RH) connector D52 (LH), D72 (RH) terminal 5.
  19 (G/Y) - 5 (G/Y): Continuity should exist.
  
  Fig 3: Checking continuity between power window sub-switch connector terminal 19 and power window motor terminal 5 (Rear LH Or RH)
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace harness between power window sub-switch (rear LH or RH) and power window motor (rear LH or RH).
CHECK ENCODER GROUND
1. Connect power window sub-switch (rear LH or RH) connector.
2. Check continuity between power window motor (rear LH or RH) connector D52 (LH), D72 (RH) terminal 4 and ground.
  4 (W/B) - Ground: Continuity should exist.
  
  Fig 4: Checking Continuity Between Power Window Motor (Rear LH Or RH) Connector D520, D72 Terminal 4 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace power window motor (rear LH or RH).
2. NG: GO TO 4.
CHECK ENCODER GROUND CIRCUIT
Check continuity between power window motor (rear LH or RH) connector D52 (LH), D72 (RH) terminal 4 and power window sub-switch (rear LH or RH) connector D55 (LH), D75 (RH) terminal 20.

4 (W/B) - 20 (W/B): Continuity should exist.

Fig 5: Checking Continuity Between Power Window Motor Connector Terminal 4 & Power Window Sub-Switch Terminal 20 (Rear LH Or RH)
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Replace power window sub-switch (rear LH or RH).
NG: Repair or replace harness between power window motor (rear LH or RH) and power window sub-switch (rear LH or RH).