The Lemon Index

Check engine light · Engine codes

P2402: Evaporative Emission System Leak Detection Pump Control Circuit High.

Powertrain · GenericP2402
Drive on, get it checked
What it means

The EVAP leak test pump circuit reads too high.

How serious

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

Where a shop starts

Failed leak detection pump. Then: wiring fault.

Owners named P2402 in 16 complaints to the U.S. government, most often on the Toyota Yaris.

Cars owners report it on

Complaints that name P2402, 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 P2402 means

The EVAP leak test pump circuit reads too high.

Can I drive with P2402?

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

19% of the owner complaints that name P2402 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 P2402
  • 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: 19% of complaints
  • Loses power or goes into limp mode: 12% of complaints

Share of complaints naming the code whose text also mentions each problem.

Model years that report P2402 most

2007 Toyota Yaris (2).

Related codes

P2401 P2422 P2431 P2432 P2433 P2440 P2441 P2442

Quick answers

What does P2402 mean?

Evaporative Emission System Leak Detection Pump Control Circuit High. The EVAP leak test pump circuit reads too high.

Can I drive with P2402?

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 P2402?

Failed leak detection pump; Wiring fault.

Counts: NHTSA owner complaints whose text names P2402. 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.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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