DTC codes / U02xx · Lost communication with a control module / U0262
U0262 is a generic network communication code indicating that a control module on the vehicle's data bus has lost contact with the audio amplifier designated as 'B'. The module that sets this code (often the radio head unit, body control module, or gateway) has stopped receiving the periodic status messages it expects from that amplifier over the controller area network (CAN) or similar serial data link.
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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