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.
Theory Of Operation
The Body Control Module (BCM) receives the network communication message from the Radio Frequency (RF Hub) Module indicating run/start operation is requested. The BCM provides a voltage output through the Run/Start Relay Control circuit to the coil side of the RUN/START Relay in the Power Distribution Center (PDC) Assembly. A ground path for the RUN/START Relay is provided through the PDC Assembly.
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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.