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.
2012 Chevrolet Malibu L4-2.4LFACTORY OEM SERVICE PROCEDURE
HVAC Control Module
Instrument Panel/Center Console Component Views
HVAC Module Components
1 - B7J Air Temperature Sensor - Duct Right Upper (CJ2)
2 - B39 A/C Evaporator Temperature Sensor (CJ2)
3 - M4 Air Inlet Door Actuator (CJ2)
4 - M46 Air Recirculation Door Actuator
5 - K8 Blower Motor Control Module
6 - M8 Blower Motor
7 - E40 Electrical Auxiliary Heater (C32)
8 - K33 HVAC Control Module
9 - B7D Air Temperature Sensor - Duct Left Lower (C68 or CJ2)
10 - M6L Air Temperature Door Actuator - Left (CJ2) or M6 Air Temperature Door Actuator (C67 or C68)
11 - M37 Mode Door Actuator
12 - B7H Air Temperature Sensor - Duct Left Upper (C68 or CJ2)
13 - M6R Air Temperature Door Actuator - Right (CJ2)
14 - B7E Air Temperature Sensor - Duct Right Lower (CJ2)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.