U058AInvalid Data Received From DC/AC Converter Control Module B
- Generic OBD-II code · Network
- How the car detects it
- U058A refers to a second DC/AC converter. Two converters can make sense when outlets in the cab and in the cargo bed are fed separately or when a high-power unit is added to a small one. GM's 2023 Silverado and Sierra 1500 illustrate how optional such hardware is: because of the chip shortage, trucks built from September 2022 left the factory with the inverter for the 120 V instrument panel and bed outlets inactive and later received an accessory power control module plus a body control module reprogram. Mismatched configuration after such a retrofit is a plausible source of invalid data. No manufacturer documents U058A or names a converter B publicly. U0289 is the lost-communication code. Only the outlets are affected.
- What you may notice
- One group of outlets dead while others work
- Outlet warning or service message
- Likely causes
- LikelyConfiguration not updated after fitting or retrofitting converter B
- PossibleConverter B internally faulty or overheated
- RareBus wiring to converter B damaged
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.