What does code U014C mean?

Q: What does code U014C mean?

Lost Communication With Battery Energy Control Module D. U014C is a network communication code indicating that the primary control module has lost the controller area network (CAN) signal from the Battery Energy Control Module D, a dedicated module that monitors and reports on the high-voltage battery pack in hybrid and electric vehicles. The computer has detected that expected periodic messages from this module have stopped arriving over the communication bus, which isolates the fault to the module itself, its power supply, or the data wiring rather than to the battery cells directly.

DTC codes / U01xx · Lost communication with a control module / U014C

U014CLost Communication With Battery Energy Control Module D

U014C is a network communication code indicating that the primary control module has lost the controller area network (CAN) signal from the Battery Energy Control Module D, a dedicated module that monitors and reports on the high-voltage battery pack in hybrid and electric vehicles. The computer has detected that expected periodic messages from this module have stopped arriving over the communication bus, which isolates the fault to the module itself, its power supply, or the data wiring rather than to the battery cells directly.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.