OBD Guide

P25E9

Supercharger Disconnect Clutch Stuck Open

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Reduced engine power
  • Poor acceleration dynamics
  • Increased fuel consumption
  • Check Engine light comes on
  • Possible jerks during acceleration

Causes

  • Malfunction of the clutch control solenoid valve
  • Mechanical jamming of the coupling
  • Problems with the vacuum system (if the clutch is vacuum)
  • Open or short circuit in control circuit
  • Worn or damaged coupling

How to Fix

  1. Check the integrity of the clutch control circuit
  2. Check the operation of the solenoid valve
  3. Inspect the mechanical condition of the coupling
  4. Check vacuum system (if applicable)
  5. Replace coupling if necessary

Related codes

Error P25E9 by Vehicle Brand