OBD Codes List

Diagnostic reference · P0A72

P0A72

Generator Phase V Current

System
Powertrain control (P code)
Lamp
Check Engine Light
Category
Powertrain - Hybrid Propulsion

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

  1. Read generator phase V current on a scan tool
  2. Test the phase V circuit for a short or open
  3. Check the hybrid battery condition
  4. Test the inverter output
  5. Replace the inverter if phase V output is wrong
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.