OBD Codes List

Diagnostic reference · P0A10

P0A10

DC/DC Converter Status Circuit High

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

What it means

P0A10 means DC/DC Converter Status Circuit High.

Check these first

  • A short to power in the DC/DC converter status circuit
  • An open in the status circuit ground
  • A DC/DC converter that is faulty
  • A hybrid control module fault
  • A high voltage battery pack fault

What to do next

  1. Read DC/DC converter status voltage on a scan tool
  2. Check the circuit for a short to power
  3. Test the status circuit ground
  4. Check the high voltage battery state of charge
  5. Replace the converter if it is faulty
  6. Clear the code and retest

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Updated

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