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 MANUALSCHEVROLET2003MALIBU V6-3.1L VIN JREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYSERVICE AND REPAIR
2003 Chevrolet Malibu V6-3.1L VIN J
Control Assembly: Service and Repair
2003 Chevrolet Malibu V6-3.1L VIN JSECTION Service and Repair
HVAC CONTROL ASSEMBLY REPLACEMENT
REMOVAL PROCEDURE
1. Remove the IP accessory trim plate.
2. Remove the HVAC control assembly screws (1).
3. Remove the HVAC control assembly away from the IP.
4. Disconnect the vacuum hose harness connector (1) from the HVAC control assembly.
5. Disconnect the temperature actuator (2) from the HVAC control assembly
6. Disconnect the blower motor switch electrical connector (3) from the HVAC control assembly.
7. Disconnect the rear defroster control electrical connector (4) from the HVAC control assembly.
INSTALLATION PROCEDURE
1. Connect the vacuum hose harness connector (1) to the HVAC control assembly.
2. Connect the temperature actuator (2) to the HVAC control assembly.
3. Connect the blower motor switch electrical connector (3) from the HVAC control assembly.
4. Connect the rear defroster control electrical connector (4) from the HVAC control assembly.
5. Install the control assembly to the IP (2).
6. Install the control assembly retaining screws (1).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the control assembly screws to 2 N.m (18 lb in).
7. Install the accessory trim plate.
REMOVAL PROCEDURE
1. Remove the IP accessory trim plate.
2. Remove the HVAC control assembly screws (1).
3. Remove the HVAC control assembly away from the IP.
4. Disconnect the vacuum hose harness connector (1) from the HVAC control assembly.
5. Disconnect the temperature actuator (2) from the HVAC control assembly
6. Disconnect the blower motor switch electrical connector (3) from the HVAC control assembly.
7. Disconnect the rear defroster control electrical connector (4) from the HVAC control assembly.
INSTALLATION PROCEDURE
1. Connect the vacuum hose harness connector (1) to the HVAC control assembly.
2. Connect the temperature actuator (2) to the HVAC control assembly.
3. Connect the blower motor switch electrical connector (3) from the HVAC control assembly.
4. Connect the rear defroster control electrical connector (4) from the HVAC control assembly.
5. Install the control assembly to the IP (2).
6. Install the control assembly retaining screws (1).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the control assembly screws to 2 N.m (18 lb in).
7. Install the accessory trim plate.
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.