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.
Installation Procedure
- NOTE:
Index the wider male heater and air conditioning mode control cam gear tooth, to the wider female heater and air conditioning mode control cam gear tooth indicated by the arrows.
Heater and Air Conditioning Mode Control Cam(1) - Install[2x]
Heater and Air Conditioning Evaporator and Blower Module Bracket(1) - Install
- CAUTION:
Refer to Fastener Caution .
Heater and Air Conditioning Evaporator and Blower Module Bracket Bolt(1) - Install and tighten[4x] 1.5 N.m (13 lb in)
Connect the electrical connector.
- Mode Control Cam Actuator(2) - Install
- Mode Control Cam Actuator Bolt(1) - Install and tighten[2x]1.5 N.m (13 lb in)
Air Inlet Valve Actuator(2) - Left Side - Install - Air Inlet Valve Actuator Replacement - Left Side (With CJ2)
- Steering Column Assembly - Install - Steering Column Replacement (Buick, Mexico, NJ1, With BTM, With N06)Steering Column Replacement (Buick, Canada/United States, NJ1, With BTM, Without N06)Steering Column Replacement (Chevrolet, Mexico, NJ1, With BTM, With N06)Steering Column Replacement (Chevrolet, Canada/United States, NJ1, With BTM, Without N06)Steering Column Replacement (Chevrolet, Canada/United States, NJ1, Without BTM, Without N06)Steering Column Replacement (Chevrolet, Mexico, NJ1, Without BTM, Without N06)Steering Column Replacement (Mexico, N40)
- Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (without KL9)Battery Negative Cable Disconnection and Connection (with KL9)
- Clear the DTCs from the heater and air conditioning remote control module.
- Perform the actuator calibration procedure. Actuator Recalibration (C67)
NO RELATED
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.