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.
Modules and Driver Controls
The BCM module processes the inputs and outputs for most of the interior lamps, with the exception of the reading and vanity lamps, which receive voltage from the BCM, and control on the ground side of the lamps integral switches. Driver controls include the following components:
- The instrument panel (I/P) dimmer switch
- The jamb or ajar switches
- The headlamp switch
- The reading lamp switches
- The vanity mirror lamps switches
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.