Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006TRAILBLAZER 2WD V8-6.0L VIN HREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYSERVICE AND REPAIRHVAC SYSTEM - MANUALHVAC CONTROL MODULE
2006 Chevrolet TrailBlazer 2WD V8-6.0L VIN H
HVAC Control Module
2006 Chevrolet TrailBlazer 2WD V8-6.0L VIN HSECTION HVAC Control Module
HVAC CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the I/P accessory trim plate.
2. Remove the control module retaining screws.
3. Depress the HVAC control module retaining tabs (3) and remove the HVAC control module (2) from the instrument panel (4).
4. Disconnect the electrical connectors (1) from the HVAC control module (2).
INSTALLATION PROCEDURE
1. Connect the electrical connectors to the HVAC control module (2).
IMPORTANT: The key should be in the OFF position when connecting the electrical connectors to ensure proper calibration.
2. Install the HVAC control module (2) to the instrument panel (4), ensuring that the HVAC control module retaining tabs (3) lock into place.
3. Install the HVAC control module retaining screws.
Tighten the screws to 1.9 N.m (17 lb ft).
NOTE: Refer to Fastener Notice.
4. Install the I/P accessory trim plate.
5. Start the engine and let run for 1 minute.
IMPORTANT:
- Do not adjust any controls on the HVAC control module while the HVAC control module is calibrating.
- If interrupted, improper HVAC performance will result.
6. Refer to Control Module References for programming and setup information. Programming and Relearning
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.