What does code U0271 mean?

Q: What does code U0271 mean?

Lost Communication With Seat Control Switch Module C. U0271 is a network communication fault indicating that the module responsible for monitoring the seat control switch (often the body control module or a dedicated seat module) has stopped receiving expected messages from the seat control switch module C over the vehicle's data bus. The computer sets this code when the ignition is on and the expected periodic signal from that switch module is absent for a calibrated time, typically due to an open circuit, short, or failed module.

DTC codes / U02xx · Lost communication with a control module / U0271

U0271Lost Communication With Seat Control Switch Module C

U0271 is a network communication fault indicating that the module responsible for monitoring the seat control switch (often the body control module or a dedicated seat module) has stopped receiving expected messages from the seat control switch module C over the vehicle's data bus. The computer sets this code when the ignition is on and the expected periodic signal from that switch module is absent for a calibrated time, typically due to an open circuit, short, or failed module.

SystemNetwork

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaLost communication with a control 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.