OBD
P0A94
DC/DC Converter A Performance
What it means
P0A94 means DC/DC Converter A Performance.
Check these first
- A failing DC/DC converter
- Loose or corroded converter connections
- High voltage battery problems
- Converter firmware that is out of date
What to do next
- Read DC/DC converter A data on a scan tool
- Inspect the converter connections for corrosion
- Check the high voltage battery condition
- Update the converter firmware
- Replace the converter if performance is off spec
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.