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Alternate Method (w/o Scan Tool) Cadillac Escalade GMT800

HVAC Systems - Automatic 1 illustration ~146 words

Alternate Method (w/o Scan Tool)

  1. Clear all DTCs
  2. Place the ignition switch to the OFF position.
  3. Disconnect the scan tool.
  4. Install the motor assembly.
  5. Re-connect all previously disconnected components.
  6. Remove the HVAC/ECAS fuse for a minimum of 10 seconds.
  7. Re-install the HVAC/ECAS fuse.
  8. Start the vehicle.
  9. Wait 40 seconds for the HVAC control module to re-calibrate.
  10. Verify that no DTCs have set as current DTCs.

Scheme 143

Scheme 143: Removal Procedure
Scheme 143: Removal Procedure
  1. Remove the instrument panel accessory trim plate. Refer to BEZEL REPLACEMENT - INSTRUMENT PANEL (I/P) CLUSTER in Instrument Panel, Gages and Console.
  2. Remove the accessory switch from the instrument panel. Refer to ACCESSORY SWITCH REPLACEMENT in Instrument Panel, Gages and Console.
  3. Remove the screws from the HVAC control module.
  4. Depress the control assembly retaining tabs and remove the HVAC control module from the instrument panel.
  5. Disconnect the electrical connectors from the HVAC control module.