U0296
Lost Communication With AC/DC Converter Control Module A
U0296 is an OBD-II diagnostic trouble code meaning: Lost Communication With AC/DC Converter Control Module A. Common causes: open or short circuit in the communication circuit, ac/dc module fault. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Problems with charging a high-voltage battery (in hybrid/electric cars)
- The climate system does not work
- Reduced vehicle power
- Errors in the operation of electronic systems
Causes
- Open or short circuit in the communication circuit
- AC/DC module fault
- Module power problems
- Corroded or poor connector contact
- Software error in the module
How to Fix
- Check the integrity of the wiring harness to the AC/DC module
- Check fuses and relays associated with the module
- Inspect connectors for corrosion or damage
- Conduct module diagnostics using a scanner
- Update module software (if available)
- Repair only from an authorized dealer
Related codes
Error U0296 by Vehicle Brand
FAQ
What does the U0296 code mean?
U0296 is an OBD-II diagnostic trouble code that indicates: Lost Communication With AC/DC Converter Control Module A
What causes a U0296 error code?
The most common causes of U0296 include: Open or short circuit in the communication circuit; AC/DC module fault; Module power problems; Corroded or poor connector contact.
How do I fix a U0296 diagnostic trouble code?
To fix U0296: Check the integrity of the wiring harness to the AC/DC module. Check fuses and relays associated with the module. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0296?
Limited driving only, diagnose soon
How much does it cost to fix U0296?
The estimated repair cost for U0296 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat