OBD
B012A
DC/AC Converter A High Voltage Power Outlet “D” Circuit/Open
What it means
B012A means DC/AC Converter A High Voltage Power Outlet “D” Circuit/Open.
Check these first
- An open in the converter A outlet D high voltage feed
- A blown fuse or open relay feeding outlet D
- A loose outlet D connector
- Water intrusion in the outlet D wiring
What to do next
- De-energize the high voltage system before testing
- Check the fuse and relay feeding outlet D
- Inspect the outlet D connector for water
- Test the outlet D high voltage feed for an open
- Replace the converter A or outlet D harness if faulty
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.