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Encoder And Limit Switch Check

  1. CHECK DOOR WINDOW SLIDE MECHANISM 

    Check the following.

    • Obstacles in window, glass molding, etc.
    • Worn or deformed glass molding
    • Door sash tilted too far inward or outward
    • Door window regulator
    1. OK or NG 

    OK GO TO 2.

    NG Remove obstacles or repair door window slide mechanism.

  2. CHECK LIMIT SWITCH POWER SUPPLY INPUT SIGNAL 
    1. Disconnect front power window regulator LH or RH connector.
    2. Turn ignition switch to ON position.
    3. Check voltage between front power window regulator LH harness connector D4 terminal 2 (G/W) or front power window regulator RH harness connector D38 terminal 2 (G/W) and ground.
      Fig 1: Checking Limit Switch Power Supply Input Signal
      G02092474Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK GO TO  4 .

    NG GO TO 3.

  3. CHECK LIMIT SWITCH POWER SUPPLY OUTPUT SIGNAL 

    Check voltage between front power window main switch terminal 15 or front power window switch RH terminal 16 and ground.

    Fig 2: Checking Limit Switch Power Supply Output Signal
    G02092475Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK Repair harness or connectors between power window switch and front power window regulator.

    NG Replace power window main switch or front power window switch RH.

  4. CHECK LIMIT SWITCH OPERATION 
    1. Connect front power window regulator LH or RH connector.
    2. Check voltage between front power window main switch terminal 15 or front power window switch RH terminal 16 and ground during power window closing operation.
      Fig 3: Checking Limit Switch Operation
      G02092476Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK GO TO  7 .

    NG GO TO 5.

  5. RESET LIMIT SWITCH 

    Reset limit switch. Refer to , "FRONT DOOR GLASS LIMIT SWITCH RESET ". Then check voltage between front power window main switch terminal 15 or front power window switch RH terminal 16 and ground during power window closing operation at least ten times.

    Fig 4: Resetting Limit Switch
    G02092477Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK INSPECTION END

    NG GO TO 6.

  6. CHECK POWER WINDOW REGULATOR GROUND CIRCUIT 
    1. Disconnect front power window main switch connector or front power window switch RH connector.
    2. Check the following.
      • Continuity between front power window main switch harness connector D13 terminal 17 (W/B) and front power window regulator LH harness connector D4 terminal 6 (W/B).
      • Continuity between front power window switch RH harness connector D33 terminal 20 (W/B) and front power window regulator RH harness connector D38 terminal 6 (W/B).
        Fig 5: Checking Power Window Regulator Ground Circuit
        G02092478Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK Replace front power window regulator LH or RH.

    NG Repair harness or connectors between power window switch and front power window regulator.

  7. CHECK ENCODER POWER SUPPLY OUTPUT SIGNAL 
    1. Connect front power window main switch or front power window switch RH connector.
    2. Turn ignition switch to ON position.
    3. Check voltage between front power window main switch harness connector D10 terminal 7 (G/R) or front power window switch RH harness connector D33 terminal 15 (G/R) and ground.
      Fig 6: Checking Encoder Power Supply For Output Signal
      G02092479Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK GO TO 8.

    NG Replace front power window main switch or front power window switch RH.

  8. CHECK ENCODER POWER SUPPLY INPUT SIGNAL 

    Check voltage between front power window regulator LH harness connector D4 terminal 4 (G/R) or front power window regulator RH harness connector D38 terminal 4 (G/R) and ground.

    Fig 7: Checking Encoder Power Supply Input Signal
    G02092480Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK GO TO 9.

    NG Repair harness or connector.

  9. CHECK ENCODER INPUT SIGNAL 
    1. Connect front power window regulator LH or RH connector.
    2. Check voltage signal between front power window main switch harness connector D10 terminal 14 (G/Y) or front power window switch RH harness connector D33 terminal 19 (G/Y) and ground with oscilloscope when power window is in automatic closing operation.
      Fig 8: Checking Encoder Input Signal
      G02092481Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK Replace front power window main switch or front power window switch RH.

    NG GO TO 10.

  10. CHECK HARNESS FOR OPEN OR SHORT 
    1. Turn ignition switch to OFF position.
    2. Disconnect front power window main switch connector or front power window switch RH and front power window regulator LH or RH connector.
    3. Check the following.
      • Check continuity between front power window main switch harness connector D10 terminal 14 (G/Y) and front power window regulator LH harness connector D4 terminal 5 (G/Y).
      • Check continuity between front power window switch RH harness connector D33 terminal 19 (G/Y) and front power window regulator RH harness connector D38 terminal 5 (G/Y).
      • Check continuity between front power window main switch harness connector D10 terminal 14 (G/Y) or front power window switch RH harness connector D33 terminal 19 (G/Y) and ground.
      Fig 9: Checking Harness For Open Or Short
      G02092482Courtesy of NISSAN MOTOR CO., U.S.A.
    1. OK or NG 

    OK Replace front power window regulator LH or RH.

    NG Repair harness or connector.

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