Encoder Circuit Check Rear LH or RH

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.
  1. 4 (BR/W) - Ground: Approx. 10V
OK or NG
1. OK: GO TO 3.
2. 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 control unit 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 control unit LH or RH connector D209 (LH) or D309 (RH) terminal 5.
  1. 4 (BR/W) - 5 (BR/W): Continuity should exist.
OK or NG
1. OK: Replace rear power window switch LH or RH.
2. NG: Repair or replace harness.
Fig 2: Checking Continuity Between Rear Power Window Motor Connector D204 or D304 Terminal 4 And Rear Power Window Control Unit Connector D209 Or D309 Terminal 5
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.
  1. 6 (G) - Ground: Continuity should exist.
OK or NG
1. OK: GO TO 5.
2. 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 control unit LH or RH connector D209 (LH), D309 (RH) terminal 3.
  1. 6 (G) - 3 (G): Continuity should exist.
OK or NG
1. OK: Replace rear power window control unit LH or RH.
2. NG: Repair or replace harness.
Fig 4: Checking Continuity Between Rear Power Window Motor Connector D204, D304 Terminal 6 And Rear Power Window Control Unit Connector D209, D309 Terminal 3
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 control unit LH or RH connector D209 (LH) or D309 (RH) terminal 4 and ground with oscilloscope.
  
  Fig 5: Rear Power Window Control Unit Connectors Encoder Signal Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 6.
2. NG: Replace rear power window control unit LH or RH.
Fig 6: Checking Signal Between Rear Power Window Control Unit Connector D209 Or D309 Terminal 4 And Ground With Oscilloscope
Courtesy of NISSAN MOTOR CO., U.S.A.
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.
  1. Rear LH
  2. 4 (Y/R) - 3 (Y/R): Continuity should exist.
  3. Rear RH
  4. 4 (Y/B) - 3 (Y/B): Continuity should exist.
  Fig 7: Checking Continuity Between Rear Power Window Control Unit Connector D209 Or D309 Terminal 4 And Rear Power Window Motor Connector D204 Or D304 Terminal 3
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace rear power window motor LH or RH.
2. NG: Repair or replace harness.