GM Cavalier/Sunfire 1995-2000 Repair Guide

Park/Neutral Safety Switch (Transaxle Range Sensor)

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REMOVAL & INSTALLATION



See Figures 1 and 2



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Fig. Fig. 1: PNP switch mounting-3T40 transaxle



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Fig. Fig. 2: PNP switch mounting-4T40E transaxle

The park/neutral safety switch also functions as the back-up switch.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the shift linkage.
  4.  
  5. Detach the electrical connector from the switch.
  6.  
  7. Unfasten the switch-to-transaxle screws/bolts, then remove the switch.
  8.  

To install:
  1. If installing the old switch, proceed as follows:
    1. Place the shift shaft/control lever in N .
    2.  
    3. Align the flats of the shift shaft with the switch, then loosely install the mounting bolts.
    4.  
    5. Insert a gauge pin in the service adjustment hole and rotate the switch until the pin drops to a depth of 9 / 64 in. (9mm).
    6.  
    7. Tighten the bolts to 18 ft. lbs. (25 Nm), then remove the gauge pin.
    8.  

  2.  
  3. If installing a new switch, proceed as follows:
    1. Place the shift shaft/control lever in N .
    2.  
    3. Align the flats of the shift shaft to the flats in the switch, then install the switch assembly. Tighten the bolts to 18 ft. lbs. (25 Nm).
    4.  
    5. If the bolt holes do not align with the mounting boss on the transaxle, verify the transaxle is in the N position, do not rotate the switch.
    6.  
    7. If the shift has been rotated and the pin broken, the switch can be adjusted by following the procedure in Step 5.
    8.  

  4.  
  5. Attach the electrical connector to the switch.
  6.  
  7. Install the shift linkage.
  8.  
  9. Connect the negative battery cable, then start the engine and check the switch operation.
  10.  


CAUTION
After switch engagement, make sure the engine will only start in P or N.

ADJUSTMENT



See removal and installation of the Park Neutral Safety Switch (Transaxle Range or TR sensor).

 
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