Check Encoder Circuit (Rear LH or RH)

CHECK REAR POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH or RH connector.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor LH or RH connector D57 (LH) or D77 (RH) terminal 6 and ground.
  6 (W) - Ground: Approx. 10V
  
  Fig 1: Checking Voltage Between Rear Power Window Motor Terminal 6 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 3.
- NG: GO TO 2.
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear door control unit LH or RH and rear power window motor LH or RH connector.
3. Check continuity between rear door control unit LH or RH connector D58 (LH) or D78 (RH) terminal 15 and rear power window motor LH or RH connector D57 (LH) or D77 (RH) terminal 6.
  15 (W) - 6 (W): Continuity should exist.
  
  Fig 2: Checking Continuity Between Rear Door Control Unit And Rear Power Window Motor
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Replace rear door control unit LH or RH.
- NG: Repair or replace harness.
CHECK ENCODER GROUND
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 D57 (LH) or D77 (RH) terminal 4 and ground.
  4 (B) - Ground: Continuity should exist.
  
  Fig 3: Checking Continuity Between Rear Power Window Motor Terminal 4 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 4.
- NG: Repair or replace harness.

CHECK ENCODER SIGNAL

Connect rear power window motor LH or RH connector.
Turn ignition switch ON.

Check the signal between rear door control unit LH or RH connector and ground with oscilloscope.

ENCODER SIGNAL

Connector	Terminals (Wire color)		Condition	Signal (Reference value)
Connector	(+)	(-)	Condition	Signal (Reference value)
D58 (LH) D78 (RH)	19 (G)	Ground	Down	Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Checking Signal Between Rear Door Control Unit LH Or RH Connector And Ground

G04129799

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Encoder function is OK.
NG: GO TO 5.

CHECK ENCODER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear door control unit LH or RH and rear power window motor LH or RH connector.
3. Check continuity between rear door control unit LH or RH connector D58 (LH) or D78 (RH) terminal 19 and rear power window motor LH or RH connector D57 (LH) or D77 (RH) terminal 5.
  19 (G) - 5 (G): Continuity should exist.
  
  Fig 5: Checking Encoder Circuit
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Replace rear power window motor LH or RH.
- NG: Repair or replace harness.