GM Full-Size Trucks 1980-1987 Repair Guide

Back-Up Light Switch

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REMOVAL & INSTALLATION



The 3-speed manual transmission backup light switch is on the column. On the 4-speed, it is on the transmission, near the top cover.

Transmission Mounted Switch

  1. Disconnect the negative battery cable.
  2.  
  3. Raise the vehicle and support it safely.
  4.  
  5. Disconnect the electrical connector at the switch.
  6.  
  7. Remove the retaining screws and the back-up light switch.
  8.  
  9. Installation is the reverse of the removal procedure. After installation, make sure to check the operation of the switch.
  10.  

Steering Column Switch (Manual Transmission)

  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect the switch connector.
  4.  
  5. Remove the column mounting screws and remove the switch.
  6.  
  7. Installation is the reverse of the removal procedure. After installation, make sure to check the operation of the switch.
  8.  

 
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