DTC codes / U01xx · Lost communication with a control module / U0196
U0196 is a network communication code indicating that the module responsible for the rear seat entertainment system has stopped reporting on the vehicle's controller area network (CAN) bus. The body control module or gateway has detected that it is no longer receiving the periodic status messages it expects from the rear entertainment control module, which may be due to a power, ground, or data bus fault rather than a failed module.
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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