GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 Chevy C Cab/Chassis HD (GMT 400) 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Mode Control Cable Replacement

Removal Procedure
  1. Remove the radio. Refer to Radio Replacement in Entertainment.

    2. Object Number: 651721 Size: SH
  2. Remove the heater control assembly (1).

    3. Object Number: 363022 Size: SH
  3. Disconnect the mode cable from the HVAC module.

    4. Object Number: 651719 Size: SH
  4. Remove the mode cable (2) from the heater control assembly (3).
  5. Remove the mode cable from the vehicle.

Installation Procedure

Important: Verify the following conditions before performing the installation procedure:

   â€¢ Ensure that the center and RH control knobs are fully rotated counterclockwise.
   â€¢ Ensure that the heater module large door is open.
   â€¢ Ensure that the heater module small door is closed.

  1. Install the mode cable to the IP carrier.

    2. Object Number: 651719 Size: SH
  2. Install the mode cable (2) to the heater control assembly (3).

    3. Object Number: 363022 Size: SH
  3. Connect the mode cable to the HVAC module.

    4. Object Number: 651721 Size: SH
  4. Install the heater control assembly (1).
  5. Install the radio. Refer to Radio Replacement in Entertainment.