Encoder Circuit Check Rear LH or RH

CHECK REAR POWER WINDOW MOTOR LH OR RH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH or RH.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor LH or RH connector D204 (LH) or D304 (RH) terminal 4 and ground.
  4 - Ground : Approx. 10V
  
  Fig 1: Identifying Connector D204 (LH) Or D304 (RH) Terminal 4 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 power window motor LH or RH and rear power window control unit LH or RH.
3. Check continuity between rear power window motor LH or RH connector D204 (LH) or D304 (RH) (B) terminal 4 and rear power window control unit LH or RH connector D209 (LH) or D309 (RH) (A) terminal 5.
  4 - 5 : Continuity should exist.
  
  Fig 2: Identifying Continuity Between Rear Power Window Motor Terminal 4 And Rear Power Window Control Unit Terminal 5
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : Replace rear power window switch LH or RH. Refer to "REMOVAL ".
- NG : Repair or replace harness.
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 - Ground : Continuity should exist.
  
  Fig 3: Identifying Connector D204 (LH) Or D304 (RH) Terminal 6 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : GO TO 5.
- NG : GO TO 4.
CHECK ENCODER GROUND CIRCUIT
1. Disconnect rear power window control unit 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 control unit LH or RH connector D209 (LH), D309 (RH) terminal 3.
  6 - 3 : Continuity should exist.
  
  Fig 4: Identifying Continuity Between Rear Power Window Motor Terminal 6 And Rear Power Window Control Unit Terminal 3
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : Replace rear power window control unit LH or RH.
- NG : Repair or replace harness.

CHECK ENCODER SIGNAL

Connect rear power window motor LH or RH and rear power window control unit LH or RH.
Turn ignition switch ON.

Check the signal between rear power window control unit LH or RH connector D209 (LH) or D309 (RH) terminal 4 and ground with oscilloscope.

TERMINALS SIGNALS

Connector	Terminals		Condition	Signal
Connector	(+)	(-)	Condition	Signal
D209 (LH)	4	Ground	Opening
D309 (RH)	4	Ground	Opening

Fig 5: Identifying Connector D209 (LH) Or D309 (RH) Terminal 4 And Ground

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

OK or NG

OK : GO TO 6.
NG : Replace rear power window control unit LH or RH.

CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit LH or RH and rear power window motor LH or RH.
3. Check continuity between rear power window control unit LH or RH connector D209 (LH) or D309 (RH) terminal 4 and rear power window motor LH or RH connector D204 (LH), D304 (RH) terminal 3.
  4 - 3 : Continuity should exist.
  
  Fig 6: Identifying Continuity Between Rear Power Window Control Unit Terminal 4 And Rear Power Window Motor Terminal 3
  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 REGULATOR ".
- NG : Repair or replace harness.