GM Cavalier/Sunbird/Skyhawk/Firenza 1982-1994

Neutral Start/Back-up Light Switch

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The automatic transaxle utilizes the neutral safety switch and back-up light switch as a combined unit. This switch is located under the console, next to the shifter on 1982-84 models and on top of the of the transaxle on 1985-94 models.

REMOVAL & INSTALLATION



1982-84 Vehicles

See Figure 1

  1. Disconnect the negative battery cable.
  2.  



Click image to see an enlarged view

Fig. Fig. 1: Neutral safety/back-up switch on 1982-84 vehicles is located under the console next to the shifter

  1. Remove the console assembly.
  2.  
  3. Detach the electrical connector.
  4.  
  5. Unfasten the retaining bolt/screw, then remove the switch from the side of the shifter.
  6.  
  7. Installation is the reverse of the removal procedure.
  8.  

1987-94 Vehicles

See Figure 2

  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.  



Click image to see an enlarged view

Fig. Fig. 2: View of the neutral safety/back-up light switch - 1992 vehicle shown

To install:

After switch adjustment, make sure that the engine will only start in "Park" or "Neutral". If the engine will start in any other gear, re-adjust the switch.

  1. If installing the old switch, proceed as follows:
    1. Place the shift shaft/control lever in "Neutral".
    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. (24 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 "Neutral".
    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. (24 Nm).
    4.  
    5. If the bolt holes do not align with the mounting boss on the transaxle, verify the transaxle is in the "Neutral" 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.
  10.  
  11. Start the engine and check the switch operation.
  12.  

 
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