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.
Module Controlled Functions
The multifunction modules consist of the following:
- air suspension module
- driver door module (DDM)
- lighting control module (LCM)
The air suspension module is linked to its own data link connector (DLC). The air suspension module controls the air suspension system and the electronic variable orifice (EVO) steering.
The DDM is connected to the international standards organization (ISO) 9141 communication network. The DDM controls many functions including power door locks and remote keyless entry (RKE).
The LCM is connected to the ISO 9141 communication network. The LCM controls both interior and exterior lighting, backlighting, the battery saver and warning chimes.
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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.