What does code U0516 mean?

Q: What does code U0516 mean?

Invalid Data Received From Door Switch A. U0516 is a communication fault indicating that a control module received invalid or missing data from the door switch A input, which is typically a driver's door ajar or latch position switch. The module that sets this code has detected that the signal from the door switch circuit is outside the expected range or is not updating correctly, so it cannot trust the door status information.

DTC codes / U05xx · Network communication / U0516

U0516Invalid Data Received From Door Switch A

U0516 is a communication fault indicating that a control module received invalid or missing data from the door switch A input, which is typically a driver's door ajar or latch position switch. The module that sets this code has detected that the signal from the door switch circuit is outside the expected range or is not updating correctly, so it cannot trust the door status information.

SystemNetwork

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaNetwork communication

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.