The Lemon IndexThe EVAP leak test pump circuit reads too low.
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Failed leak detection pump. Then: wiring fault.
Owners named P2401 in 13 complaints to the U.S. government, most often on the Toyota Yaris.
Cars owners report it on
Complaints that name P2401, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2007 Toyota Yaris
The details
What P2401 means
The EVAP leak test pump circuit reads too low.
Can I drive with P2401?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
23% of the owner complaints that name P2401 also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P2401
- Failed leak detection pump
- Wiring fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Warning lights and electrical faults: 23% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P2401 most
2007 Toyota Yaris (2).
Related codes
P2402 P2422 P2431 P2432 P2433 P2440 P2441 P2442
Quick answers
What does P2401 mean?
Evaporative Emission System Leak Detection Pump Control Circuit Low. The EVAP leak test pump circuit reads too low.
Can I drive with P2401?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
What causes P2401?
Failed leak detection pump; Wiring fault.
Counts: NHTSA owner complaints whose text names P2401. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.