GM Prizm/Nova 1985-1993 Repair Guide

Blower Speed Control Switch

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REMOVAL & INSTALLATION



1985-92
  1. Disconnect the negative battery cable. Remove the illumination light from the control assembly.
  2.  
  3. Using a tool, pry loose the clip and push out the blower speed control switch to the rear of the control assembly.
  4.  
  5. Installation is the reverse of the removal procedure. Connect the negative battery cable. Check operation of the system.
  6.  

1993
  1. Disconnect the negative battery cable.
  2.  
  3. Pull the center trim bezel from the instrument panel, disconnecting the cigar lighter and ashtray bulb socket.
  4.  
  5. Remove the 3 screws and pull the heater control unit from the instrument panel.
  6.  
  7. Pull the knob off of the blower speed selector switch.
  8.  
  9. Disconnect the blower speed selector switch electrical connector.
  10.  
  11. Remove the switch by removing the 2 screws retaining it to the control unit.
  12.  

To install:
  1. Position the switch and install the 2 screws retaining it to the control unit.
  2.  
  3. Connect the blower speed selector switch electrical connector.
  4.  
  5. Push the knob on the blower speed selector switch.
  6.  
  7. Install the heater control unit to the instrument panel.
  8.  
  9. Press the center trim bezel to the instrument panel and connect the cigar lighter and ashtray bulb socket.
  10.  
  11. Connect the negative battery cable.
  12.  

 
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