What does code U02BC mean?

Q: What does code U02BC mean?

Lost Communication With Localization and Mapping Module. U02BC is a generic communication fault indicating that one or more control modules have lost contact with the Localization and Mapping Module, which is the dedicated computer that fuses GPS, camera, radar, and inertial sensor data to build a precise map of the vehicle's surroundings. The module that set the code has detected a missing or corrupted Controller Area Network (CAN) message from the localization module for a calibrated number of drive cycles, so it stores U02BC and typically illuminates the warning light.

DTC codes / U02xx · Lost communication with a control module / U02BC

U02BCLost Communication With Localization and Mapping Module

U02BC is a generic communication fault indicating that one or more control modules have lost contact with the Localization and Mapping Module, which is the dedicated computer that fuses GPS, camera, radar, and inertial sensor data to build a precise map of the vehicle's surroundings. The module that set the code has detected a missing or corrupted Controller Area Network (CAN) message from the localization module for a calibrated number of drive cycles, so it stores U02BC and typically illuminates the warning light.

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.