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.
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HOMESERVICE MANUALSCHEVROLET2004MALIBU V6-3.5L VIN 8REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - HVACCONTROL MODULE HVACSERVICE AND REPAIRHVAC SYSTEM - AUTOMATICHVAC CONTROL MODULE REPLACEMENT
2004 Chevrolet Malibu V6-3.5L VIN 8
HVAC Control Module Replacement
2004 Chevrolet Malibu V6-3.5L VIN 8SECTION HVAC Control Module Replacement
HVAC CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel (I/P) center trim panel.
2. Remove the HVAC control module screws.
3. Remove the HVAC control module.
4. Remove the HVAC control module wire harness connectors.
INSTALLATION PROCEDURE
IMPORTANT: The key should be in the OFF position when connecting the electrical connectors to ensure proper calibration.
1. Install the HVAC control module wire harness connectors.
2. Install the HVAC control module.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Tighten the HVAC control module screws.
Tighten
Tighten the screws to 2.5 N.m (22 lb in).
4. Install the I/P center trim panel.
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.
5. Start the engine and let run for one minute.
REMOVAL PROCEDURE
1. Remove the instrument panel (I/P) center trim panel.
2. Remove the HVAC control module screws.
3. Remove the HVAC control module.
4. Remove the HVAC control module wire harness connectors.
INSTALLATION PROCEDURE
IMPORTANT: The key should be in the OFF position when connecting the electrical connectors to ensure proper calibration.
1. Install the HVAC control module wire harness connectors.
2. Install the HVAC control module.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Tighten the HVAC control module screws.
Tighten
Tighten the screws to 2.5 N.m (22 lb in).
4. Install the I/P center trim panel.
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.
5. Start the engine and let run for one minute.
RENDER: 1.0x
NO RELATED
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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.