GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2003 🢒 ION 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Mode Control Cam Replacement

Removal Procedure

    Object Number: 877771 Size: SH
  1. Pull out on the accessory trim plate in order to release the retaining fasteners.

    2. Object Number: 877774 Size: SH
  2. Disconnect the accessory trim plate electrical connector(s).

    3. Object Number: 873751 Size: SH
  3. Remove the screws from the radio and pull the radio out.

    4. Object Number: 873752 Size: SH
  4. Disconnect the radio electrical connectors and remove the radio.

    5. Object Number: 873745 Size: SH

    Important: Do not bend the mode and temperature cables.

  5. Disconnect the mode and temperature cables from the HVAC control assembly.

    6. Object Number: 873744 Size: SH
  6. Disconnect the HVAC control assembly electrical connectors.

    7. Object Number: 873747 Size: SH
  7. Remove the HVAC control assembly screws and remove the HVAC control assembly.
  8. If equipped with cruise control, remove the cruise control module from the brake pedal bracket. Refer to Cruise Control Module Replacement in Cruise Control.

    9. Object Number: 873749 Size: SH

    Important: Do not bend the mode cable.

  9. Remove the mode cable screw and remove the mode cable.

    10. Object Number: 872596 Size: SH
  10. Turn the mode cam clockwise while pulling out to remove.

Installation Procedure

    Object Number: 872596 Size: SH
  1. Align the mode cam with the mode door levers and the HVAC module.
  2. Insert the mode cam into the HVAC module while turning the mode cam clockwise. Make certain that the mode door levers align with the proper grooves in the mode cam.

    3. Object Number: 873749 Size: SH

    Important: Do not bend the mode cable.

  3. Install the mode cable. Make certain that the cable is properly seated in the notch in the HVAC module.

    4. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the mode cable screw.

    5. Tighten
    Tighten the screw to 2 N·m (18 lb in).

  5. If equipped with cruise control, install the cruise control module to the brake pedal bracket. Refer to Cruise Control Module Replacement in Cruise Control.

    6. Object Number: 873747 Size: SH
  6. Install the HVAC control assembly.
  7. Install the HVAC control assembly screws.

    8. Tighten
    Tighten the screws to 2.5 N·m (22 lb in).


    Object Number: 873745 Size: SH

    Important: Do not bend the mode and temperature cables.

  8. Connect the mode and temperature cables to the HVAC control assembly.

    9. Object Number: 873744 Size: SH
  9. Connect the HVAC control assembly electrical connectors.

    10. Object Number: 873752 Size: SH
  10. Place the radio in the vehicle and connect the radio electrical connectors.

    11. Object Number: 873751 Size: SH
  11. Push the radio into position.
  12. Install the radio screws.

    13. Tighten
    Tighten the screws to 2.5 N·m (22 lb in).


    Object Number: 877774 Size: SH
  13. Connect the accessory trim plate electrical connector(s).

    14. Object Number: 877771 Size: SH
  14. Align the retaining fasteners with the I/P.
  15. Push on the outer edge of the accessory trim plate in order to secure the retaining fasteners.