P24AA — EGR Cooler Coolant Pump Control Circuit High

What Does P24AA Mean?

P24AA is a diagnostic trouble code indicating: EGR Cooler Coolant Pump Control Circuit High. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P24AA

⚠️ Check Engine Light (MIL) illuminated
⚠️ EGR Cooler Coolant Pump reading stuck at maximum value
⚠️ Related system operating erratically or in default mode
⚠️ Reduced engine performance

Common Causes

🔍 Short to voltage in EGR Cooler Coolant Pump wiring harness
🔍 Corroded or water-damaged EGR Cooler Coolant Pump connector
🔍 Faulty EGR Cooler Coolant Pump outputting maximum voltage
🔍 Damaged wiring rubbing against metal components
🔍 ECM/PCM internal fault (rare)

Frequently Asked Questions

What does P24AA mean?

P24AA indicates: EGR Cooler Coolant Pump Control Circuit High. The vehicle's computer has detected that the EGR Cooler Coolant Pump is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P24AA?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P24AA for extended periods may cause additional problems.

How much does it cost to fix P24AA?

Repair costs for P24AA 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

🔧 Inspect and repair EGR Cooler Coolant Pump wiring for short to voltage
🔧 Clean or replace corroded EGR Cooler Coolant Pump connector
🔧 Replace faulty EGR Cooler Coolant Pump

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.

P24AA: EGR Cooler Coolant Pump Control Circuit High