OBD-II code · Powertrain (generic, extended)
P24BE EVAP System Leak Detection Pump Switching Valve Control Circuit Low
Same as P24BD with the control line shorted to ground. 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 P24BE?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyControl line shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
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
- P24BBEVAP System Leak Detection Pump Pressure Sensor Circuit High
- P24BCEVAP System Leak Detection Pump Pressure Sensor Circuit Intermittent
- P24BDEVAP System Leak Detection Pump Switching Valve Control Circuit Open
- P24BFEVAP System Leak Detection Pump Switching Valve Control Circuit High
- P24C0EVAP System Leak Detection Pump Switching Valve Stuck On
- P24C1EVAP System Leak Detection Pump Switching Valve Performance Stuck Off
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.