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    Nissan Sentra/Pulsar/NX 1982-1996 Repair Guide

    Inhibitor Switch (Back-Up/Neutral Safety)

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    The inhibitor switch, contains both the back-up and neutral safety switches. The switch allows the back-up lights to work when the transaxle is placed in Reverse range. It also act as a Neutral Safety switch, by allowing the current to pass to the starter when the transaxle is placed in Neutral or Park. The switch may be at fault is the starter motor will not crank.

    REMOVAL & INSTALLATION



    1. Raise and support the vehicle on jackstands.
    2.  
    3. At the transaxle, disconnect the manual control cable from the manual shaft.
    4.  
    5. Remove the three retaining screws and the switch from transaxle.
    6.  

    To install:
    1. Install the inhibitor switch to the transaxle. Do not tighten the adjusting screws.
    2.  
    3. Following proper procedures, adjust the inhibitor switch.
    4.  
    5. Connect the manual control cable and adjust as required.
    6.  
    7. Lower the vehicle to the ground.
    8.  

    ADJUSTMENT



    See Figure 1



    Click image to see an enlarged view

    Fig. Fig. 1: Inhibitor switch adjustment service points

    1. Raise and support the vehicle on jackstands.
    2.  
    3. At the transaxle, disconnect the manual control cable from the manual shaft.
    4.  
    5. Place the select lever in the Neutral position.
    6.  
    7. Loosen the inhibitor switch adjusting screws.
    8.  
    9. Using a 0.098 in. (2.5mm) diameter pin for 1982-92 vehicles and a 0.157 in. (4mm) pin for 1993 and later vehicles, adjust the switch as follows:
      1. Place the pin into the manual shaft adjustment hole.
      2.  
      3. Rotate the inhibitor switch until the pin can be inserted through the manual shaft and into the inhibitor switch alignment hole.
      4.  
      5. Tighten the adjusting screws to 17-23 inch lbs. (2.0-2.6 Nm).
      6.  
      7. Check the switch for continuity. Continuity should exist only when the manual shaft is in the P and Neutral positions.
      8.  

    10.  
    11. Connect the manual control cable and adjust as required.
    12.  
    13. Lower the vehicle to the ground.
    14.  

     
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