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 445 (TIRE PRESSURE MONITORING SYSTEM (TPMS))
2021 Ford Expedition Platinum, RWD
Section 445 (Tire Pressure Monitoring System (TPMS))
2021 Ford Expedition Platinum, RWDSECTION Section 445 (Tire Pressure Monitoring System (TPMS))
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Tire Pressure Monitoring System (TPMS) - Component Location
- Tire Pressure Monitoring System (TPMS) - Overview
- Tire Pressure Monitoring System (TPMS) - System Operation and Component Description
- Diagnosis And Testing
- Tire Pressure Monitoring System (TPMS)
- DTC Charts
- Symptom Chart(s)
- Pinpoint Tests
- Pinpoint Test A : B1182:00
- Pinpoint Test B : B124D:02
- Pinpoint Test C : B1251:00
- Pinpoint Test D : Diagnosing Radio Frequency Interference Faults
- Pinpoint Test E : TPMS (Tire Pressure Monitoring System) Warning Indicator Is On Continuously And The Message Center Displays Low Tire Pressure
- Pinpoint Test F : The BCM (Body Control Module) Will Not Enter TPMS Sensor Training Mode
- Pinpoint Test G : One Or More TPMS (Tire Pressure Monitoring System) Sensors Do Not Train And No Diagnostic Trouble Codes (DTCS) Are Present
- Pinpoint Test H : U0146:00
- Pinpoint Test I : U1A00:00
- Pinpoint Test J : U0401:00, U0401:82
- Tire Pressure Monitoring System (TPMS)
- 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.