OBD Guide

P24D4

EGR Cooler Coolant Pump Feedback Circuit

P24D4 is an OBD-II diagnostic trouble code meaning: EGR Cooler Coolant Pump Feedback Circuit. Common causes: open or short circuit in the pump circuit, pump solenoid valve malfunction. Estimated repair cost: $56–167.

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

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

Related codes

Error P24D4 by Vehicle Brand

FAQ

What does the P24D4 code mean?

P24D4 is an OBD-II diagnostic trouble code that indicates: EGR Cooler Coolant Pump Feedback Circuit

What causes a P24D4 error code?

The most common causes of P24D4 include: Open or short circuit in the pump circuit; Pump solenoid valve malfunction; Pump relay problems; Malfunction of the coolant pump itself.

How do I fix a P24D4 diagnostic trouble code?

To fix P24D4: Check the pump circuit fuses and relays. Diagnose the power supply and pump control circuit. Check the resistance of the pump winding. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24D4?

Yes, but get it checked soon

How much does it cost to fix P24D4?

The estimated repair cost for P24D4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat