Error code
OBD2 U0112
OBD2U0112
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Lost Communication With Battery Energy Control Module 'B'.
Severity
moderateThe vehicle can likely be driven, but performance and fuel efficiency may suffer.
Summary
U0112 indicates that there is no communication between the OBD-II system and the Battery Energy Control Module B (BECM-B). This issue affects data transmission on the CAN bus.
Common Causes
- Faulty or damaged wiring harness connecting to the BECM-B
- Corrosion in connectors of the BECM-B
- Malfunctioning BECM-B module itself
Fixes
FAQ
What should I do if my car shows U0112?
Check for any visible damage or corrosion in the wiring harness and connectors related to the BECM-B. If no obvious issues are found, it may be necessary to consult a professional mechanic.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0100Lost Communication With ECM/PCM A
- U0101Lost Communication with TCM
- U0102Lost Communication with Transfer Case Control Module
- U0103Lost Communication With Gear Shift Module
- U0104Lost Communication With Cruise Control Module
- U0105Lost Communication With Fuel Injector Control Module
- U0106Lost Communication With Glow Plug Control Module
- U0107Lost Communication With Throttle Actuator Control Module
- U0108Lost Communication With Alternative Fuel Control Module
- U0109Lost Communication With Fuel Pump Control Module
- U0110Lost Communication With Drive Motor Control Module
- U0111Lost Communication With Battery Energy Control Module 'A'