U054BInvalid Data Received From Interior Lighting Control Module A
- Generic OBD-II code · Network
- How the car detects it
- Interior lighting control module A runs cabin illumination such as dome, footwell and ambient light strips, in newer cars often RGB LED nodes on a LIN line below the body controller. Microchip's reference ambient lighting module shows the data involved: the master sends a command frame with zone, colour shares and intensity and asks for a status frame in return, each protected by a LIN checksum at 10.4 kbit/s. When status content from module A arrives but is implausible or corrupted, the receiver stores U054B; if the module stays silent, U024A applies, and module B has U05C0. No manufacturer documents U054B. Courtesy lights may then stay off, colour or brightness may change unexpectedly, or entry lighting may fail.
- What you may notice
- Interior or ambient lights stay off or flicker
- Ambient colour or brightness differs from the setting
- Likely causes
- PossibleLED driver node or lighting module internally faulty
- PossibleChafed LIN line or loose connector in trim or headliner
- RareWrong vehicle configuration for the lighting variant
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.