OBD-II code · Network
U055F Invalid Data Received From Electronic Brake Booster Control Module A
A receiving module detected implausible data from electronic brake booster module A. Boost assist, brake-by-wire pedal feedback or regen-blending values fail plausibility checks and are rejected.
Is it safe to drive with U055F?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule internal fault or sensor input drift
- PossibleSoftware version mismatch after replacement
- Less likelyGateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Electronic Brake Booster Module A
Related codes
- U0560Invalid Data Received From Electronic Brake Booster Control Module B
- U055CInvalid Data Received From Special Purpose Vehicle Control Module C
- U055DInvalid Data Received From Special Purpose Vehicle Control Module D
- U055EInvalid Data Received From Front Controls Interface Module B
- U0561Invalid Data Received From Seat Control Switch Module A
- U0562Invalid Data Received From Seat Control Switch Module B
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.