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Encoder Circuit Check Rear LH or RH

  1. 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.
        Fig 1: Checking Voltage Between Rear Power Window Motor And Ground
        G02468655Courtesy of NISSAN MOTOR CO., U.S.A.
      1. 4 (BR/W) - Ground: Approx, 10V 

    OK or NG

    1. OK: GO TO  3 .
    2. NG: GO TO 2.
  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) terminal 4 and rear power window control unit LH or RH connector D209 (LH) or D309 (RH) terminal 5.
      Fig 2: Checking Continuity Between Rear Power Window Motor And Rear Power Window Control Unit
      G02468656Courtesy of NISSAN MOTOR CO., U.S.A.
      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.
  3. 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.
      Fig 3: Checking Continuity Between Rear Power Window Motor And Ground
      G02468657Courtesy of NISSAN MOTOR CO., U.S.A.
      1. 6 (G) - Ground: Continuity should exist. 

    OK or NG

    1. OK: GO TO  5 .
    2. NG: GO TO 4.
  4. 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.
      Fig 4: Checking Continuity Between Rear Power Window Motor And Rear Power Window Control Unit
      G02468658Courtesy of NISSAN MOTOR CO., U.S.A.
      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.
  5. 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: Connector Terminal Specifications
      G02468659Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 6: Checking Signal Between Rear Power Window Control Unit And Ground With Oscilloscope
      G02468660Courtesy 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.
  6. 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.
      Fig 7: Checking Continuity Between Rear Power Window Control Unit And Rear Power Window Motor
      G02468661Courtesy of NISSAN MOTOR CO., U.S.A.
      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. 

    OK or NG

    1. OK: Replace rear power window motor LH or RH.
    2. NG: Repair or replace harness.
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