U1886
Battery Energy Control Module Lost Communication With Engine Control Module
U1886 is an OBD-II diagnostic trouble code meaning: Battery Energy Control Module Lost Communication With Engine Control Module. Common causes: open or short circuit in the can bus, battery management module malfunction. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- Battery charging problems
- Incorrect operation of the start-stop system
- Reduced engine performance
- Errors in other vehicle systems
Causes
- Open or short circuit in the CAN bus
- Battery management module malfunction
- Problems with power supply to one of the modules
- Damage to connectors or corrosion of contacts
- Software error in one of the modules
How to Fix
- Check the integrity of the CAN bus between modules
- Check power and ground of both modules
- Inspect connectors for damage and corrosion
- Diagnose the battery control module
- If necessary, update the module software
Related codes
FAQ
What does the U1886 code mean?
U1886 is an OBD-II diagnostic trouble code that indicates: Battery Energy Control Module Lost Communication With Engine Control Module
What causes a U1886 error code?
The most common causes of U1886 include: Open or short circuit in the CAN bus; Battery management module malfunction; Problems with power supply to one of the modules; Damage to connectors or corrosion of contacts.
How do I fix a U1886 diagnostic trouble code?
To fix U1886: Check the integrity of the CAN bus between modules. Check power and ground of both modules. Inspect connectors for damage and corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1886?
Limited driving only, diagnose soon
How much does it cost to fix U1886?
The estimated repair cost for U1886 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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