U04B5
Invalid Data Received from Brake System Control Module B
U04B5 is an OBD-II diagnostic trouble code meaning: Invalid Data Received from Brake System Control Module B. Common causes: open or short circuit in wiring harness, poor contact in module connectors. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- Errors in related systems (ABS/ESP)
- Reduced functionality of braking systems
- Problems with cruise control
- Entries in the on-board computer error log
Causes
- Open or short circuit in wiring harness
- Poor contact in module connectors
- Brake control module B malfunction
- Module power problems
- Software failure in the control unit
How to Fix
- Check the integrity of wiring and connectors
- Scan all modules for additional errors
- Check the power supply and ground of the module
- Update control unit software
- Repair only from an authorized dealer
Related codes
Error U04B5 by Vehicle Brand
FAQ
What does the U04B5 code mean?
U04B5 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received from Brake System Control Module B
What causes a U04B5 error code?
The most common causes of U04B5 include: Open or short circuit in wiring harness; Poor contact in module connectors; Brake control module B malfunction; Module power problems.
How do I fix a U04B5 diagnostic trouble code?
To fix U04B5: Check the integrity of wiring and connectors. Scan all modules for additional errors. Check the power supply and ground of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U04B5?
Limited driving only, diagnose soon
How much does it cost to fix U04B5?
The estimated repair cost for U04B5 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat