OBD Guide

P25FD

Turbocharger/Supercharger Bypass Valve C Temperature Too High

P25FD is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Bypass Valve C Temperature Too High. Common causes: bypass valve overheating, valve electrical circuit problems. Estimated repair cost: $33–111.

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

FAQ

What does the P25FD code mean?

P25FD is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Bypass Valve C Temperature Too High

What causes a P25FD error code?

The most common causes of P25FD include: Bypass valve overheating; Valve electrical circuit problems; Mechanical damage to the valve; Temperature sensor malfunction.

How do I fix a P25FD diagnostic trouble code?

To fix P25FD: Check valve electrical circuit. Inspect the valve for mechanical damage. Check temperature sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25FD?

Yes, but get it checked soon

How much does it cost to fix P25FD?

The estimated repair cost for P25FD is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat