P2DDB — EVAP System Leak Detection Pump Stuck On

What Does P2DDB Mean?

P2DDB is a diagnostic trouble code indicating: EVAP System Leak Detection Pump Stuck On. This code relates to the vehicle systems system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P2DDB

⚠️ Check Engine Light (MIL) illuminated
⚠️ EVAP System Leak Detection Pump remains active when it should be off
⚠️ Related system running continuously
⚠️ System warning light illuminated

Common Causes

🔍 EVAP System Leak Detection Pump mechanically stuck in active position
🔍 Short circuit holding EVAP System Leak Detection Pump control on
🔍 Faulty EVAP System Leak Detection Pump driver circuit in ECM/PCM

Frequently Asked Questions

What does P2DDB mean?

P2DDB indicates: EVAP System Leak Detection Pump Stuck On. The vehicle's computer has detected that the EVAP System Leak Detection Pump is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P2DDB?

Only short distances if absolutely necessary. P2DDB affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix P2DDB?

Repair costs for P2DDB typically range from $50 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect EVAP System Leak Detection Pump for mechanical binding or debris
🔧 Replace stuck EVAP System Leak Detection Pump
🔧 Check EVAP System Leak Detection Pump control circuit for short

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P2DDB: EVAP System Leak Detection Pump Stuck On