OBD Guide

P2D4A

Hybrid/EV Battery Pack F Over Temperature

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Reduced vehicle power
  • Dashboard warning
  • Reduced range
  • The car goes into emergency mode
  • Increased temperature in the cabin

Causes

  • Battery cooling system malfunction
  • Clogged battery cooling radiator
  • Block F temperature sensor malfunction
  • Wiring harness damage
  • Excessive load on the battery

How to Fix

  1. Check coolant level
  2. Inspect the battery cooling radiator for contamination
  3. Check the operation of the cooling fans
  4. Test block F temperature sensors
  5. Check the integrity of the wiring harness
  6. Repair only from an authorized dealer

Related codes

Error P2D4A by Vehicle Brand