U0289
Lost Communication With DC/AC Converter Control Module B
U0289 is an OBD-II diagnostic trouble code meaning: Lost Communication With DC/AC Converter Control Module B. Common causes: open or short circuit in the communication circuit, converter control module malfunction. Estimated repair cost: $167–556.
Symptoms
- Check Engine light comes on
- Reduced power of electrical equipment
- Battery charging problems
- Limitation of hybrid system functionality
- The car goes into emergency mode
Causes
- Open or short circuit in the communication circuit
- Converter control module malfunction
- Module power problems
- Corrosion or poor contact in connectors
- Software error in the ECU
How to Fix
- Check the integrity of the wiring harness to the module
- Check the power supply and ground of the module
- Inspect connectors for corrosion or damage
- Scan the module for additional errors
- If necessary, replace the converter control module
- Repair only from an authorized dealer
Related codes
Error U0289 by Vehicle Brand
FAQ
What does the U0289 code mean?
U0289 is an OBD-II diagnostic trouble code that indicates: Lost Communication With DC/AC Converter Control Module B
What causes a U0289 error code?
The most common causes of U0289 include: Open or short circuit in the communication circuit; Converter control module malfunction; Module power problems; Corrosion or poor contact in connectors.
How do I fix a U0289 diagnostic trouble code?
To fix U0289: Check the integrity of the wiring harness to the module. Check the power supply and ground of the module. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0289?
Limited driving only, diagnose soon
How much does it cost to fix U0289?
The estimated repair cost for U0289 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat