P2DD9 — EVAP System Leak Detection Pump Control Circuit Performance

What Does P2DD9 Mean?

P2DD9 is a diagnostic trouble code indicating: EVAP System Leak Detection Pump Control Circuit Performance. 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 P2DD9

⚠️ Check Engine Light (MIL) illuminated
⚠️ EVAP System Leak Detection Pump not meeting expected output
⚠️ Degraded performance of related system
⚠️ System warning light illuminated

Common Causes

🔍 EVAP System Leak Detection Pump degraded from age or contamination
🔍 Mechanical wear in EVAP System Leak Detection Pump or related parts
🔍 Restriction or blockage affecting EVAP System Leak Detection Pump
🔍 Calibration drift in EVAP System Leak Detection Pump

Frequently Asked Questions

What does P2DD9 mean?

P2DD9 indicates: EVAP System Leak Detection Pump Control Circuit Performance. 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 P2DD9?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P2DD9 for extended periods may cause additional problems.

How much does it cost to fix P2DD9?

Repair costs for P2DD9 typically range from $50 to $400, 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 contamination or wear
🔧 Replace EVAP System Leak Detection Pump
🔧 Address any related mechanical faults

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.

P2DD9: EVAP System Leak Detection Pump Control Circuit Performance