P0A72
Generator Phase V Current
What it means
P0A72 means Generator Phase V Current.
Check these first
- High resistance in the generator phase V circuit
- A short or open in the generator phase V circuit
- A failing hybrid battery
- A failing inverter
What to do next
- Read generator phase V current on a scan tool
- Test the phase V circuit for a short or open
- Check the hybrid battery condition
- Test the inverter output
- Replace the inverter if phase V output is wrong
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.