U04AB
Invalid Data Received From Hybrid/EV Battery Interface Control Module K
U04AB is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Hybrid/EV Battery Interface Control Module K. Common causes: battery management module malfunction, problems with the can bus. Estimated repair cost: $167–889.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Errors in the operation of the hybrid transmission
- Reducing electric range
- Error message on display
Causes
- Battery management module malfunction
- Problems with the CAN bus
- Wiring harness damage
- Module software failure
- Poor contact in connectors
How to Fix
- CAN bus diagnostics
- Checking wiring integrity
- Scanning for errors in the battery module
- Reflashing the control module
- Replace the battery management module if necessary
- Repair only from an authorized dealer
Related codes
Error U04AB by Vehicle Brand
FAQ
What does the U04AB code mean?
U04AB is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Hybrid/EV Battery Interface Control Module K
What causes a U04AB error code?
The most common causes of U04AB include: Battery management module malfunction; Problems with the CAN bus; Wiring harness damage; Module software failure.
How do I fix a U04AB diagnostic trouble code?
To fix U04AB: CAN bus diagnostics. Checking wiring integrity. Scanning for errors in the battery module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U04AB?
Limited driving only, diagnose soon
How much does it cost to fix U04AB?
The estimated repair cost for U04AB is $167–889. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat