Code result
P2402
EVAP Leak Detection Pump Control Circuit High
Moderate severity
What it means
Drive voltage on the leak-detection pump line is above the upper limit. Usually a short to supply or open ground.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Drive line shorted to supply
highOne of the most commonly reported causes for this code — check this first.
Pump ground open
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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