U18BA
Lost Communication With Power Steering Control Module On High Speed CAN Bus
U18BA is an OBD-II diagnostic trouble code meaning: Lost Communication With Power Steering Control Module On High Speed CAN Bus. Common causes: power steering control module malfunction, open or short circuit in the can bus. Estimated repair cost: $56–278.
Symptoms
- Increased effort when turning the steering wheel
- The steering indicator light on the instrument panel comes on
- Loss of power steering functions
- Other warning messages on the display
- Unstable operation of other systems associated with the CAN bus
Causes
- Power steering control module malfunction
- Open or short circuit in the CAN bus
- Damaged steering module connector
- Blown steering module circuit fuse
- Problems with power loss or module grounding
How to Fix
- Check fuses related to the steering system
- Inspect the steering module connectors and wiring for damage.
- Check the integrity of the CAN bus using a diagnostic scanner
- Test the steering module for faults
- If necessary, replace the steering control module
Related codes
FAQ
What does the U18BA code mean?
U18BA is an OBD-II diagnostic trouble code that indicates: Lost Communication With Power Steering Control Module On High Speed CAN Bus
What causes a U18BA error code?
The most common causes of U18BA include: Power steering control module malfunction; Open or short circuit in the CAN bus; Damaged steering module connector; Blown steering module circuit fuse.
How do I fix a U18BA diagnostic trouble code?
To fix U18BA: Check fuses related to the steering system. Inspect the steering module connectors and wiring for damage.. Check the integrity of the CAN bus using a diagnostic scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U18BA?
Limited driving only, diagnose soon
How much does it cost to fix U18BA?
The estimated repair cost for U18BA is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat