GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 Matiz 🢒 HVAC 🢒 HVAC - Manual 🢒 Heater and Air Conditioning Control Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1618178 Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the audio system trim plate.
  3. Disconnect the electrical wiring harness from the audio system trim plate.

    4. Object Number: 1618183 Size: SH
  4. Remove the storage compartment. Refer to Instrument Panel Storage Compartment Replacement .
  5. Slide the cable eyelet off the post on the intake door lever.
  6. Disconnect the cable retainer from the heater/air distributor case assembly.

    7. Object Number: 1618189 Size: SH
  7. Disconnect the temperature control cable eyelet from the heater/air distributor case assembly.
  8. Disconnect the mode cable eyelet heater/air distributor case assembly.

    9. Object Number: 1618193 Size: SH
  9. Remove the control assembly screws.

    10. Object Number: 1618197 Size: SH
  10. Disconnect the A/C switch connector.
  11. Disconnect the defroster connector.
  12. Disconnect the electrical connector.
  13. Pull out the controller to provide clearance for removal of the intake door cable.
  14. Disconnect the intake door cable eyelet from the post on the controller.

    15. Object Number: 1618200 Size: SH
  15. Disconnect the blower motor switch connector.
  16. Disconnect the temperature control cable eyelet for the post on the controller.
  17. Disconnect the mode cable eyelet from the post on the controller.
  18. Snap the cables housing connector out of the slide position on the controller.
  19. Remove the control assembly.

Installation Procedure

    Object Number: 1618200 Size: SH
  1. Press the cables end eyelet onto the post on the controller.
  2. Snap the cable housing connector to the slide position on the controller.

    3. Object Number: 1618197 Size: SH
  3. Connect the electrical connectors.

    4. Object Number: 1618193 Size: SH
  4. Install the control assembly.
  5. Install the control assembly screws.

    6. Object Number: 1618183 Size: SH
  6. Install the intake door cable eyelet to the post on the intake door lever.
  7. Install the storage compartment. Refer to Instrument Panel Storage Compartment Replacement .

    8. Object Number: 1618189 Size: SH
  8. Install the temperature control cable eyelet to the post on the temperature door lever.
  9. Install the mode cable eyelet to the post on the mode door lever.
  10. Snap the cable retainer to the heater/air distributor case assembly.

    11. Object Number: 1618178 Size: SH
  11. Connect the electrical connector from the audio system trim plate.
  12. Install the audio system trim plate.

    13. Caution: Refer to Battery Disconnect Caution in the Preface section.

  13. Connect the negative battery cable.