U0112
Lost Communication With Battery Energy Control Module B
U0112 is an OBD-II diagnostic trouble code meaning: Lost Communication With Battery Energy Control Module B. Common causes: open or short circuit in wiring harness, battery energy management module b malfunction. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Switching to emergency mode
- Battery charging problems
- Inability to use electric mode (for hybrids)
Causes
- Open or short circuit in wiring harness
- Battery Energy Management Module B malfunction
- Connector problems or contact corrosion
- CAN bus fault
- Software errors in the ECU
How to Fix
- Check the integrity of the wiring harness to the module
- Inspect and clean electrical connectors
- Check power supply and grounding of the module
- Scan the CAN bus for errors
- Update ECU software if necessary
- Repair only from an authorized dealer
Related codes
Error U0112 by Vehicle Brand
FAQ
What does the U0112 code mean?
U0112 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Battery Energy Control Module B
What causes a U0112 error code?
The most common causes of U0112 include: Open or short circuit in wiring harness; Battery Energy Management Module B malfunction; Connector problems or contact corrosion; CAN bus fault.
How do I fix a U0112 diagnostic trouble code?
To fix U0112: Check the integrity of the wiring harness to the module. Inspect and clean electrical connectors. Check power supply and grounding of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0112?
Yes, but get it checked soon
How much does it cost to fix U0112?
The estimated repair cost for U0112 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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