P24D4

EGR Cooler Coolant Pump Feedback Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Increased emissions of harmful substances
Unstable operation at idle

Causes

Open or short circuit in the pump circuit
Pump solenoid valve malfunction
Pump relay problems
Malfunction of the coolant pump itself
Poor contact in circuit connectors

How to Fix

Check the pump circuit fuses and relays
Diagnose the power supply and pump control circuit
Check the resistance of the pump winding
Inspect connectors and wiring harness for damage
If necessary, replace the EGR coolant pump

Related codes

P24D3 P24D5 P0490