Code Definition

P24A7 — EGR Cooler Coolant Pump Control Circuit / Open

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P24A7

P24A7 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P24A7 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P24A7 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

P24A7 is set when the engine control module detects an electrical fault in the circuit that drives the EGR cooler coolant pump, typically an open circuit or a feedback value outside the expected range when the pump is commanded on. The auxiliary electric pump circulates coolant through the EGR cooler so recirculated exhaust gas is cooled correctly, and on most applications it continues to run for a period after shutdown to carry residual heat away. Unlike P24A8, which reports the pump performing poorly, P24A7 points at the wiring, connector, relay or output driver rather than at pump output, s...

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