U0596Invalid Data Received From AC/AC Converter Control Module
- Generic OBD-II code · Network
- How the car detects it
- An AC/AC converter changes alternating current of one voltage or frequency into another without handing it to the battery first. In vehicles, such a stage can sit in a charger, for example a matrix converter that turns three-phase grid power directly into high-frequency AC for an isolating transformer, as in patent US9973107B2, or it can adapt power for on-board outlets. U0596 means the converter's controller sends status, current or temperature data that the receiving module refuses as implausible. No manufacturer documents U0596, and none names an AC/AC converter module in public service material, so the actual function depends entirely on the vehicle. Charging or outlet power is the most likely casualty; driving should not be affected.
- What you may notice
- Charging or outlet power interrupted
- Warning about the charging or power system
- Likely causes
- PossibleConverter control electronics faulty or overheated
- PossibleConverter and receiving module software not matched
- RareBus wiring to the converter damaged
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.