OBD-II code · Powertrain (generic, extended)
P240A EVAP System Leak Detection Pump Heater Control Circuit Open
The leak detection pump heater - keeps the pump diaphragm warm in cold weather - has an open control circuit.
Is it safe to drive with P240A?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in heater or wiring
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
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
- 0.5–1.8 h
- Emissions test
- Likely to fail
- Parts involved
- Evap Leak Detection Pump Heater
Related codes
- P2407EVAP Leak Detection Pump Sense Circuit Range/Performance
- P2408Fuel Cap Sensor/Switch Circuit Range/Performance
- P2409Fuel Cap Sensor or Switch Circuit Range or Performance
- P240BEVAP System Leak Detection Pump Heater Control Circuit Low
- P240CEVAP System Leak Detection Pump Heater Control Circuit High
- P240DAlternative Fuel Low Pressure System Leak
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.