U1109
Lost Communication With LIN Steering Wheel Controls
U1109 is an OBD-II diagnostic trouble code meaning: Lost Communication With LIN Steering Wheel Controls. Common causes: broken or damaged lin bus wires, faulty steering wheel control module. Estimated repair cost: $17–89.
Symptoms
- Steering wheel buttons don't work
- Check Engine Light or Other Warning Icon Is On
- Lack of response to commands from the steering wheel
- Cruise control malfunctions (if it is controlled from the steering wheel)
Causes
- Broken or damaged LIN bus wires
- Faulty steering wheel control module
- Connector problems or contact corrosion
- Main ECU malfunction
- Steering module power problems
How to Fix
- Check the integrity of wiring and connectors
- Check the supply voltage at the steering module
- Scan the system for other related errors
- Check the functionality of the steering module
- If necessary, replace faulty components
Related codes
FAQ
What does the U1109 code mean?
U1109 is an OBD-II diagnostic trouble code that indicates: Lost Communication With LIN Steering Wheel Controls
What causes a U1109 error code?
The most common causes of U1109 include: Broken or damaged LIN bus wires; Faulty steering wheel control module; Connector problems or contact corrosion; Main ECU malfunction.
How do I fix a U1109 diagnostic trouble code?
To fix U1109: Check the integrity of wiring and connectors. Check the supply voltage at the steering module. Scan the system for other related errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1109?
Limited driving only, diagnose soon
How much does it cost to fix U1109?
The estimated repair cost for U1109 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat