Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the electrical circuit that controls the pump for cooling the EGR system. It's like when a toy's battery is too strong, and it might cause the toy to not work right.
The P24AA code indicates that there is a high voltage condition in the circuit that controls the EGR cooler coolant pump.
The Exhaust Gas Recirculation (EGR) system is used to reduce nitrogen oxide emissions by recirculating a portion of the exhaust gases back into the engine cylinders. The EGR cooler coolant pump helps cool these gases before they are reintroduced. A high voltage condition in the control circuit suggests an electrical issue, such as a short to power or a failed component in the circuit.
• Check Engine Light is on
• Engine overheating
• Poor engine performance
• Faulty EGR cooler coolant pump
• Wiring issues such as short to power
• Faulty EGR cooler coolant pump relay
EGR: Exhaust Gas Recirculation
Coolant Pump: A device that circulates coolant to reduce engine temperature
• Use a scan tool to verify the code and check for other related codes.
• Inspect the EGR cooler coolant pump and its wiring for damage or disconnections.
• Test the EGR cooler coolant pump relay for proper operation.
• Replace the faulty EGR cooler coolant pump.
• Repair or replace damaged wiring in the circuit.
• Replace the EGR cooler coolant pump relay if found faulty.
• OBD-II scan tool
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram 1500
• Regularly inspect and maintain the EGR system.
• Ensure proper coolant levels to avoid overheating.
• Check electrical connections for corrosion or damage.
Sensor Issue
• Avoid driving the vehicle until repaired to prevent engine damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with your vehicle manufacturer as some components may be covered under emissions warranty.
This code has been associated with electrical issues in EGR systems, particularly in vehicles with high mileage.
Moderate – Addressing this issue promptly can prevent further engine damage.
Ignoring emissions-related codes can lead to increased pollution and may affect vehicle inspection compliance.
• Engine at operating temperature
• Under normal driving conditions
The EGR cooler coolant pump is typically located near the EGR cooler, which is connected to the exhaust manifold.
Q: Can I drive with a P24AA code?
A: It's not recommended to drive with this code as it can lead to engine overheating and further damage.
Q: How can I prevent this code from appearing?
A: Regular maintenance of the EGR system and checking electrical connections can help prevent this issue.
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