What does code P240A mean?

Q: What does code P240A mean?

EVAP System Leak Detection Pump Heater Control Circuit Open. P240A indicates that the engine control module has detected an open circuit in the heater element of the evaporative emission leak detection pump, which is used to warm the pump during cold conditions to prevent condensation and ensure accurate leak testing. The computer monitors the heater circuit for expected voltage or current and sets this code when the circuit is broken or has excessive resistance.

DTC codes / P24xx · Auxiliary emission controls / P240A

P240AEVAP System Leak Detection Pump Heater Control Circuit Open

P240A indicates that the engine control module has detected an open circuit in the heater element of the evaporative emission leak detection pump, which is used to warm the pump during cold conditions to prevent condensation and ensure accurate leak testing. The computer monitors the heater circuit for expected voltage or current and sets this code when the circuit is broken or has excessive resistance.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaAuxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.