U0295Lost Communication With AC/AC Converter Control Module
- Generic OBD-II code · Network
- How the car detects it
- An AC/AC converter takes in alternating current and delivers alternating current at a different voltage or frequency, with no DC storage in between. In electric vehicles such a stage can be part of a charger: in patent US9973107B2 a matrix stage converts the three mains phases directly to a high-frequency waveform, which an isolating transformer passes on before rectification for the battery. Other uses are possible, for example adapting power for on-board outlets. U0295 means the module controlling that converter has fallen silent on the network. No manufacturer documents U0295, and public service literature contains no module of this name; what it does is up to the vehicle design. If it sits in the charging path, CARB requires plug-in hybrids to detect faults that stop or slow charging.
- What you may notice
- AC charging not possible or interrupted
- Charging or power supply warning
- Likely causes
- PossibleLow-voltage supply or wake-up of the converter module missing
- PossibleBus wiring or connector to the converter damaged
- RareConverter shut down after overheating or a coolant fault
- RareConverter control module internally failed
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €3,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.