Sliding Door Encoder System Inspection

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

SLIDING DOOR ENCODER POWER SUPPLY CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Check voltage between sliding door control unit connector terminal 11 and ground.
  
  Fig 1: Checking Voltage Between Sliding Door Control Unit Connector Terminal 11 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - 11 (G) - Ground: Approx. 9V
OK or NG
- OK: GO TO 3.
- NG: GO TO 2.
SLIDING DOOR ENCODER GROUND CIRCUIT INSPECTION
Check continuity between sliding door control unit connector terminal 22 and ground.

Fig 2: Checking Continuity Between Sliding Door Control Unit Connector Terminal 22 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
- 22 (B) - Ground: Continuity should exist.
OK or NG
- OK: GO TO 4.
- NG: Replace sliding door control unit.
ENCODER (POSITION) SIGNAL INSPECTION
Operate the sliding door and check voltage waveform between sliding door control unit connector terminals 4, 17 and ground using an oscilloscope.

Fig 3: Voltage Waveform Description Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Checking Voltage Waveform Between Sliding Door Control Unit Connector Terminals 4, 17 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: GO TO 4.
- NG: Replace sliding door encoder.
SLIDING DOOR ENCODER CIRCUIT INSPECTION
1. Disconnect sliding door control unit and sliding door encoder.
2. Check continuity between sliding door control unit connector terminals 4, 11, 17, 22 and sliding door encoder terminals 1, 2, 3, 4 and ground.
  
  Fig 5: Checking Continuity Between Sliding Door Control Unit Connector Terminals 4, 11, 17, 22 And Sliding Door Encoder Terminals 1, 2, 3, 4
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - Sliding Door RH
  - 11 (G) - 1 (G): Continuity should exist.
  - 17 (R/B) - 2 (R/B): Continuity should exist.
  - 22 (B) - 4 (B): Continuity should exist.
  - 4 (W/B) - 3 (W/B): Continuity should exist.
  Sliding Door LH
  - 11 (R) - 1 (R): Continuity should exist.
  - 17 (Y) - 3 (Y): Continuity should exist.
  - 22 (G) - 4 (G): Continuity should exist.
  - 4 (L) - 2 (L): Continuity should exist.
OK or NG
- OK: System is OK.
- NG: Repair or replace harness.