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.
Control System Inputs
The EATC system has 4 control system inputs.
HV AC Module - Without Navigation System
The HVAC module on vehicles not equipped with the navigation system provides an interface for the vehicle occupants to control the climate control system, or automatically controls the system in the AUTO mode. The Front Display Interface Module (FDIM) displays set temperature, airflow direction and blower speed.
The HV AC module is mounted to the center instrument panel finish panel below the Front Controls Interface Module (FCIM).
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.
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