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 Nissan Maxima. 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 motor LH or RH connector D204 (LH) or D304 (RH) terminal 4 and ground.
  4 (G/R) - Ground: Approx. 10V
OK or NG
- OK: GO TO 3.
- NG: GO TO 2.
  
  Fig 1: Checking Voltage Between Rear Power Window Motor LH Or RH Connector D204 (LH) Or D304 (RH) Terminal 4 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH or RH and rear power window switch LH or RH.
3. Check continuity between rear power window motor LH or RH connector D204 (LH) or D304 (RH) terminal 4 and rear power window switch LH or RH connector D203 (LH) or D303 (RH) terminal 4.
  4 (G/R) - 4 (G/R): Continuity should exist.
OK or NG
- OK: Replace rear power window switch LH or RH.
- NG: Repair or replace harness.
  
  Fig 2: Checking Harness Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH or RH.
3. Check continuity between rear power window motor LH or RH connector D204 (LH) or D304 (RH) terminal 6 and ground.
  6 (W/B) - Ground: Continuity should exist.
OK or NG
- OK: GO TO 5.
- NG: GO TO 4.
  
  Fig 3: Checking Continuity Between Rear Power Window Motor LH Or RH Connector D204 (LH) Or D304 (RH) Terminal 6 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER GROUND CIRCUIT
1. Disconnect rear power window motor LH or RH.
2. Check continuity between rear power window motor LH or RH connector D204 (LH) or D304 (RH) terminal 6 and rear power window switch LH or RH connector D203 (LH), D303 (RH) terminal 3.
  6 (W/B) - 3 (W/B): Continuity should exist.
OK or NG
- OK: Replace rear power window switch LH or RH.
- NG: Repair or replace harness.
  
  Fig 4: Checking Encoder Ground Circuit
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER SIGNAL
1. Connect rear power window motor LH or RH.
2. Turn ignition switch ON.
3. Check the signal between rear power window switch LH or RH connector D203 (LH) or D303 (RH) terminal 12 and ground with oscilloscope.
  
  Fig 5: Signal Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Signal Between Rear Power Window Switch LH Or RH Connector D203 (LH) Or D303 (RH) Terminal 12 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 6.
- NG: Replace rear power window switch LH or RH.
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH or RH and rear power window motor LH or RH.
3. Check continuity between rear power window switch LH or RH connector D203 (LH) or D303 (RH) terminal 12 and rear power window motor LH or RH connector D204 (LH), D304 (RH) terminal 5.
  12 (G/Y) - 5 (G/Y): Continuity should exist.
  
  Fig 7: Checking Harness Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Replace rear power window motor LH or RH. Refer to "REAR DOOR GLASS AND REGULATOR ".
- NG: Repair or replace harness.