Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello and welcome to Just answer.com, Super mechanic here. About your vehicle.
CIRCUIT DESCRIPTION The following DTCs are for the HVAC door actuators:
Actuator Recalibration When replacing the HVAC control module it will be necessary to allow the HVAC control module to perform a calibration process. When installing the HVAC control module be sure to perform the following: Important: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result.
Preferred Method (w/ Scan Tool)
Alternative Method (w/o Scan Tool)
Bulletin No.: 04-01-38-008
Date: June 17, 2004
The HVAC actuator harness may contact a sharp edge on the instrument panel support brace, causing a rub through condition and a ground out of the actuator control and/or feedback circuits.
Locate the HVAC actuator harness contact point shown by the arrow in the above illustration. The illustration is of the instrument panel with the instrument panel compartment door opened and folded downward. The actuator harness is located in the left side of the opening in the instrument panel.
Technicians are to inspect the HVAC actuator harness for contact with the instrument panel support brace. Repair any damage to the actuator harness wiring and install protective plastic conduit over the harness. Install friction tape over the sharp edge of the instrument panel brace. Clear the diagnostic trouble codes and verify proper HVAC system operation.
I never had that type of problem with one, but wait, there may be someone who has. Let me open it back up. Thank you for your patience, no need to reply as that will lock the question back to me, someone should be along shortly, I'm sure.