OBD Guide

P0D20

Battery Charger A Output Voltage Performance

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–889 (est.)

Symptoms

  • Reduced battery charging efficiency
  • Increased charging time
  • Error indication on the dashboard
  • Vehicle power limitation
  • The car may go into emergency mode

Causes

  • Charger A fault
  • Problems with high voltage battery
  • Open or short circuit in the power circuit
  • Energy management system malfunction
  • Charger cooling problems

How to Fix

  1. Diagnostics of charger A
  2. Checking the condition of the high-voltage battery
  3. Checking the integrity of power circuits
  4. Energy management system diagnostics
  5. Repair only from an authorized dealer

Related codes

Error P0D20 by Vehicle Brand