OBD Guide

P0A10

DC/DC Converter Status Circuit High

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Check Engine Light Is On
  • Problems starting the engine
  • Hybrid system power reduction
  • Unstable operation of electrical equipment
  • Discharging 12-volt battery

Causes

  • DC/DC converter malfunction
  • Open or short circuit in status circuit
  • Poor contact in the converter connectors
  • Wiring Harness Problems
  • Malfunction of the hybrid system control module

How to Fix

  1. Check the condition of the wiring harness and connectors
  2. Measure the voltage at the outputs of the DC/DC converter
  3. Check status circuit for open and short circuit
  4. Test the operation of the converter
  5. Replace the DC/DC converter if necessary

Related codes

Error P0A10 by Vehicle Brand