P24C1EVAP System Leak Detection Pump Switching Valve Performance/Stuck Off
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P24C1 means the switching valve does not respond when commanded, so the vent path stays where it was. Mitsubishi's 2023 Outlander PHEV recognises this after the reference measurement of the engine-off leak test: energising the valve should change the canister pressure, and if the difference to the first or second reference value stays below a limit for 10 s, the code is stored. Mitsubishi calls this valve stuck open and first rules out P24BE or P24BF, since a dead circuit looks the same from the pressure side. The fuel door locks and a refuelling-system message appears, but purge stays permitted. The fix is usually the complete leak check module. Stuck in the energised position is P24C0.
- What you may notice
- Malfunction indicator lamp on
- Fuel filler door does not open
- EVAP readiness not set
- Likely causes
- LikelySwitching valve stuck in rest position inside the module
- PossibleOpen or shorted valve circuit so the valve never moves
- RareDirt or water from the vent line jamming the valve seat
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €150 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.