OBD Guide

P2D4D

Hybrid/EV Battery Pack I Over Temperature

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Reduced engine power
  • Battery warning icon on dashboard
  • Speed limit
  • The car goes into emergency mode
  • Increased noise of the cooling system

Causes

  • Battery cooling system malfunction
  • Dirty or clogged cooling ducts
  • Faulty battery temperature sensors
  • Problems with the battery control module
  • Battery cell degradation

How to Fix

  1. Check coolant level
  2. Inspect the cooling system air ducts for contamination
  3. Check the operation of the cooling fans
  4. Scan for other related trouble codes
  5. Check the condition and functionality of temperature sensors

Related codes

Error P2D4D by Vehicle Brand