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)
2021 Ford Expedition Platinum, RWD
Section 302 (MULTIFUNCTION Electronic Modules)
2021 Ford Expedition Platinum, RWDSECTION Section 302 (MULTIFUNCTION Electronic Modules)
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.
- Description And Operation
- Diagnosis And Testing
- Body Control Module (BCM)
- DTC Charts
- Symptom Chart: Multifunction Electronic Modules
- Pinpoint Tests
- Pinpoint Test A: The Power Point Is Never/Always Powered
- Pinpoint Test B: U0100:87
- Pinpoint Test C: U0121:87
- Pinpoint Test D: U0131:87
- Pinpoint Test E: U0137:87
- Pinpoint Test F : U0151:87
- Pinpoint Test G : U0155:87
- Pinpoint Test H : U0184:87
- Pinpoint Test I : U0199:87
- Pinpoint Test J : U0200:87
- Pinpoint Test K : U0208:87
- Pinpoint Test L : U0212:87
- Pinpoint Test M : U0230:87
- Pinpoint Test N : U023A:87
- Pinpoint Test O : U0252:87
- Pinpoint Test P : U0253:87
- Pinpoint Test Q : U0256:87
- Pinpoint Test R : U1000:00
- Pinpoint Test S : U2005:85
- Pinpoint Test T : U2100:00, U2101:00 Or U2200:00
- Pinpoint Test U :BCM (Body Control Module) Input Power Voltage Below Threshold
- Pinpoint Test V : U3006:1C
- Pinpoint Test W :BCM (Body Control Module) Input Power Voltage Above Threshold
- Pinpoint Test X : U3000:49
- Body Control Module (BCM)
- General Procedures
- Removal And Installation
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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.