OBD Guide

P0D0B

Battery Charging System Positive Contactor A Control Circuit Range/Performance

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced vehicle power
  • Problems with charging a high-voltage battery
  • The car goes into emergency mode
  • Clicking or other unusual sounds coming from the engine compartment

Causes

  • Positive contactor A fault
  • Open or short circuit in control circuit
  • Problems with the charging control module
  • Corroded contacts or damaged connectors
  • Faulty relays or fuses

How to Fix

  1. Check the condition of contactor A
  2. Test the control circuit for opens and short circuits
  3. Check connections and connectors for corrosion
  4. Scan the control module for errors
  5. If necessary, replace the contactor or repair the circuit

Related codes

Error P0D0B by Vehicle Brand