DTC codes / U04xx · Invalid data received from a module / U0482
U0482 is a communication fault where the module that controls automatic headlamp leveling (often called the headlamp leveling control module A) sends data that the receiving module judges as invalid or out of range. The computer has detected a message from that module that fails its internal plausibility or checksum test, so it cannot trust the headlamp leveling information.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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