OBD-II code · Network
U054A Invalid Data Received From Entertainment Control Module — Rear B
A receiving module detected implausible data from rear entertainment control module B (rear-seat infotainment). Source select, audio routing or display state values fail plausibility checks and are rejected.
Is it safe to drive with U054A?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
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
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Rear Entertainment Module B
Related codes
- U0497Invalid Data Received From Entertainment Control Module — Rear A
- U0547Invalid Data Received From Seat Control Module E
- U0548Invalid Data Received From Seat Control Module F
- U0549Invalid Data Received From Remote Accessory Module
- U054BInvalid Data Received From Interior Lighting Control Module A
- U054CInvalid Data Received From Seat Control Module G
- U054DInvalid Data Received From Seat Control Module H
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.