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.
Circuit/System Description
Keyless entry transmitters contain a motion sensor. The BCM monitors the type of motion that the keyless entry transmitter is experiencing and if it is a type of motion consistent with a customer starting or unlocking a vehicle then it will allow the requested function. If the BCM detects motion that is considered inconsistent with a customer starting or unlocking a vehicle then it will not allow the requested function. The purpose of this is to try to prevent unwanted detection of the keyless entry data.
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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.