OBD-II code · Powertrain (generic, extended)
P24C0 EVAP System Leak Detection Pump Switching Valve Stuck On
The LDP switching valve is stuck in the activated position. The evaporative system captures fuel vapor from the tank and purges it into intake; leaks or stuck purge valves leak hydrocarbons and cause emissions failures.
Is it safe to drive with P24C0?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyValve stuck on
- Less likelyCarbon or debris buildup preventing free movement
- Less likelyComponent wear with age - mechanical play
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.6–1.8 h
- Emissions test
- Likely to fail
- Parts involved
- Evap Leak Detection Pump Switching Valve
Related codes
- P24BDEVAP System Leak Detection Pump Switching Valve Control Circuit Open
- P24BEEVAP System Leak Detection Pump Switching Valve Control Circuit Low
- P24BFEVAP System Leak Detection Pump Switching Valve Control Circuit High
- P24C1EVAP System Leak Detection Pump Switching Valve Performance Stuck Off
- P24C2Exhaust Gas Temperature Measurement System Multiple Sensor Correlation Bank 1
- P24C3Exhaust Gas Temperature Measurement System Multiple Sensor Correlation Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.