P25FE code meaning
Supercharger Disconnect Clutch
Powertrain system Generic code P25xx codes Check engine light
What P25FE means
P25FE is the umbrella code for the supercharger disconnect clutch: it says the clutch function has failed without naming whether it is stuck, slipping or electrically faulty. Those cases have their own codes – P25E9 and P25EA for the mechanical states, P25EB to P25ED for the control circuit – so a control unit that sets P25FE either does not distinguish them or uses it as a summary. The clutch lets the engine computer switch the belt-driven blower on for low-speed torque and off at idle, cruise or high revs to save friction losses, as Eaton describes for its clutched TVS supercharger. No carmaker documents P25FE publicly; CARB requires such supercharger components to be monitored. Expect weaker low-speed response and higher consumption.
P25FE at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 6 hours
- Clears after repairAfter a drive cycle
Symptoms of P25FE
- Check engine lamp on
- Weak response at low engine speed
- Higher fuel consumption
Common causes of P25FE
- Most likelyWorn or seized clutch on the supercharger pulley
- PossibleFault in the coil, wiring or connector of the clutch
- Less likelyEngine control software that misjudges the clutch state
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Supercharger clutchClutch solenoid
What each part of P25FE means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 5 | Area: vehicle speed, idle control and auxiliary inputs. |
| FE | The exact fault in that area. |
What to do next
- Note P25FE and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P25FE
What does P25FE mean?
P25FE means "Supercharger Disconnect Clutch". P25FE is the umbrella code for the supercharger disconnect clutch: it says the clutch function has failed without naming whether it is stuck, slipping or electrically faulty. It is a generic code, so it means the same on every make.
Is it safe to drive with P25FE?
Drive gently and only to a workshop. With P25FE the car can go into limp mode (reduced power) to protect itself.
Will P25FE fail an emissions test?
Yes, it can. P25FE is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P25FE to fix?
Difficulty: hard. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P25FE clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.