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Encoder Circuit Check (Rear LH or RH) - With Front and Rear Power Window Anti-pinch System

  1. Check Rear Power Window Motor (LH Or RH) Power Supply 
    1. Turn ignition switch ON.
    2. Check voltage between rear power window switch connector D58 (LH), D78 (RH) terminal 4 and ground.

      4 (PU) - Ground: Approx. 10 V 

    OK or NG

    1. OK: Go to 2.
    2. NG: Replace rear power window switch (LH or RH).
      Fig 1: Checking Voltage At Rear Power Window Switch Connector D58 (LH) Or D78 (RH) Terminal 4
      G02494108Courtesy of NISSAN MOTOR CO., U.S.A.

  2. Check Ground Circuit 
    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 D59 (LH), D79 (RH) terminal 4 and ground.
      Fig 2: Checking Continuity Rear Power Window Motor Connector Terminal D59 (LH) Or D79 (RH) Terminal 4 To Body Ground
      G02494109Courtesy of NISSAN MOTOR CO., U.S.A.

      4 (OR) - Ground: Continuity should exist  .

    OK or NG

    1. OK: Go to  4 .
    2. NG: Go to 3.

  3. Check Harness Continuity 1 
    1. Disconnect rear power window switch (LH or RH) connector.
    2. Check continuity between rear power window switch (LH or RH) connector D58 (LH), D78 (RH) terminal 3 and rear power window motor (LH or RH) connector D59 (LH), D79 (RH) terminal 4.
      Fig 3: Testing Rear Power Window Switch To Motor Circuit (Left Or Right Side)
      G02494110Courtesy of NISSAN MOTOR CO., U.S.A.

      3 (OR) - 4 (OR): Continuity should exist  .

    OK or NG

    1. OK: Replace rear power window switch (LH or RH).
    2. NG: Repair or replace harness between rear power window switch (LH or RH) and rear power window motor (LH or RH).

  4. Check Encoder Signal 
    1. Connect rear power window motor (LH or RH) connector.
    2. Turn ignition switch ON.
    3. Check signal between rear power window switch (LH or RH) connector and ground with oscilloscope.
      Fig 4: Identifying Rear Power Window Switch Signal
      G02494111Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 5: Checking Rear Power Window Switch Signal With Oscilloscope
      G02494112Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace rear power window switch (LH or RH).
    2. NG: Go to 5.

  5. Check Harness Continuity 2 
    1. Turn ignition switch OFF.
    2. Disconnect rear power window switch (LH or RH) and rear power window motor (LH or RH) connector.
    3. Check continuity between rear power window switch (LH or RH) connector D58 (LH), D78 (RH) terminal 12 and rear power window motor (LH or RH) connector D59 (LH), D79 (RH) terminal 5.

      12 (GY) - 5 (GY): Continuity should exist  .

    OK or NG

    1. OK: Replace rear power window motor (LH or RH).
    2. NG: Repair or replace harness between rear power window switch (LH or RH) and rear power window motor (LH or RH).
      Fig 6: Testing Rear Power Window Switch To Motor Circuit (Right Or Left Side)
      G02494113Courtesy of NISSAN MOTOR CO., U.S.A.