P24DD — Reductant Purge Control Valve B Circuit Low

What Does P24DD Mean?

P24DD is a diagnostic trouble code indicating: Reductant Purge Control Valve B Circuit Low. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P24DD

⚠️ Check Engine Light (MIL) illuminated
⚠️ Reductant Purge Control Valve B reading at zero or minimum value
⚠️ Related system not functioning or in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Open or broken wire in Reductant Purge Control Valve B circuit
🔍 Poor ground connection at Reductant Purge Control Valve B
🔍 Faulty Reductant Purge Control Valve B with no output signal
🔍 Disconnected or loose Reductant Purge Control Valve B connector
🔍 Blown fuse in related circuit

Frequently Asked Questions

What does P24DD mean?

P24DD indicates: Reductant Purge Control Valve B Circuit Low. The vehicle's computer has detected that the Reductant Purge Control Valve B is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P24DD?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P24DD for extended periods may cause additional problems.

How much does it cost to fix P24DD?

Repair costs for P24DD typically range from $20 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

🔧 Repair broken wire or restore ground in Reductant Purge Control Valve B circuit
🔧 Clean and secure Reductant Purge Control Valve B connector and ground points
🔧 Replace failed Reductant Purge Control Valve B

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.

P24DD: Reductant Purge Control Valve B Circuit Low