OBD Guide

P25FD

Turbocharger/Supercharger Bypass Valve C Temperature Too High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Reduced engine power
  • Unstable engine operation
  • Check Engine light comes on
  • Noises from the turbocharger area

Causes

  • Bypass valve overheating
  • Valve electrical circuit problems
  • Mechanical damage to the valve
  • Temperature sensor malfunction
  • Valve is dirty or clogged

How to Fix

  1. Check valve electrical circuit
  2. Inspect the valve for mechanical damage
  3. Check temperature sensor
  4. Clean or replace bypass valve
  5. Check the turbocharger cooling system

Related codes

Error P25FD by Vehicle Brand