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.
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HOMESERVICE MANUALSFORD2021EXPEDITION PLATINUM, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 302 (MULTIFUNCTION ELECTRONIC MODULES)REMOVAL AND INSTALLATIONBODY CONTROL MODULE (BCM)INSTALLATION
2021 Ford Expedition Platinum, RWD
Body Control Module (BCM): Installation
2021 Ford Expedition Platinum, RWDSECTION Installation
WARNING: This page is about a different car, the 2019 Lincoln Nautilus. However, it is still accessible from the selected car via links, so may be relevant.
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NOTE: If installing a new BCM, the ignition cannot be turned on until 2 keys are programmed to the vehicle. The BCM still communicates with the diagnostic scan tool with the ignition off. If necessary, use the previous diagnostic scan tool session or start a diagnostic scan tool session using the PCM part number or tear tag number located on the PCM.
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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.