DTC codes / U04xx · Invalid data received from a module / U046B
U046B indicates that a control module received invalid or corrupted data from the Global Positioning System (GPS) module over the vehicle's communication network. The computer detected a message from the GPS module that failed its internal validity check, such as a missing checksum, out-of-range values, or a data stream that did not match the expected format.
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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