U0444Invalid Data Received From Body Control Module C
- Generic OBD-II code · Network
- How the car detects it
- Body control module C is the third body controller in vehicles with distributed body electronics; U0444 records invalid content in its frames, U0143 lost contact. Ford documents the code: TSB 24-2116 covers 2023 F-150 trucks with the 3.5L PowerBoost hybrid that warn of a trailer brake fault even with no trailer hitched, while the trailer module stores U0444:82, possibly next to U0140:87 and U0143:87. Failure type 82 stands for a message counter that is wrong or not updated, 87 for a message that is missing. Ford blames the software of gateway module A, not body module C itself. The case shows that a code naming a body module can point at the network path in between, so gateway and receiver software are checked before module C is replaced.
- What you may notice
- Trailer brake fault message although no trailer is connected
- Lost-communication codes for the BCMs stored together with U0444
- Likely causes
- LikelyGateway module software level corrupts or delays forwarded messages
- PossibleSoftware of the receiving module (e.g. trailer module) misjudges the data
- RareSupply, ground or connector fault at body control module C
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €50 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.