U020A
Lost Communication With Moveable Roof Control Module B
U020A is an OBD-II diagnostic trouble code meaning: Lost Communication With Moveable Roof Control Module B. Common causes: broken or damaged wires in the communication circuit, roof control module b fault. Estimated repair cost: $56–222.
Symptoms
- Sliding roof does not work
- Error message on the dashboard
- The roof works intermittently
- The roof does not respond to commands
Causes
- Broken or damaged wires in the communication circuit
- Roof control module B fault
- Poor contact in connectors
- Module power problems
- Software error in the control unit
How to Fix
- Check the integrity of the wiring harness to the roof module
- Inspect and clean the connector contacts
- Check the power supply and ground of the module
- Scan the system for other errors
- Replace roof control module B if necessary
Related codes
Error U020A by Vehicle Brand
FAQ
What does the U020A code mean?
U020A is an OBD-II diagnostic trouble code that indicates: Lost Communication With Moveable Roof Control Module B
What causes a U020A error code?
The most common causes of U020A include: Broken or damaged wires in the communication circuit; Roof control module B fault; Poor contact in connectors; Module power problems.
How do I fix a U020A diagnostic trouble code?
To fix U020A: Check the integrity of the wiring harness to the roof module. Inspect and clean the connector contacts. Check the power supply and ground of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U020A?
Yes, but get it checked soon
How much does it cost to fix U020A?
The estimated repair cost for U020A is $56–222. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat