OBD Guide

P0D4D

Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit Range/Performance

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–278 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced vehicle power
  • Battery charging problems
  • The car goes into emergency mode
  • Unstable operation of the hybrid system

Causes

  • Battery voltage sensor fault
  • Open or short circuit in wiring
  • Poor contact in connectors
  • Problems with the battery management module
  • Contact corrosion in a high voltage system

How to Fix

  1. Check the integrity of wiring and connectors
  2. Check voltage sensor readings
  3. Replace faulty voltage sensor
  4. Check and replace the battery management module if necessary
  5. Repair only from an authorized dealer

Related codes

Error P0D4D by Vehicle Brand