Code result
P2DDB
EVAP System Leak Detection Pump Stuck On
Moderate severity
What it means
The EVAP leak detection pump stays running when commanded off. Relay welded or driver stuck on. The evaporative system captures fuel vapor from the tank and purges it into intake; leaks or stuck purge valves leak hydrocarbons and cause emissions failures.
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
Relay contacts welded
highOne of the most commonly reported causes for this code — check this first.
Output driver stuck on
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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