P24AB

EGR Cooler Coolant Pump Stuck On

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$50–167 (est.)

Symptoms

Constant operation of the cooling fan
Increased fuel consumption
Engine operating temperature exceeded
Check Engine light comes on
Reduced engine power

Causes

EGR cooling pump malfunction
Short circuit in the pump control circuit
Faulty EGR coolant pump relay
Problems with the engine control unit (ECU)
Damage to the pump wiring harness

How to Fix

Check the functionality of the EGR cooling pump
Diagnose the electrical circuit and pump relay
Check engine control unit software
If necessary, replace the EGR cooling pump
Reset the error code and take a test drive

Related codes

P24AA P24AC P0401