OBD Guide

P24AB

EGR Cooler Coolant Pump Stuck On

P24AB is an OBD-II diagnostic trouble code meaning: EGR Cooler Coolant Pump Stuck On. Common causes: egr cooling pump malfunction, short circuit in the pump control circuit. Estimated repair cost: $50–167.

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

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

Related codes

Error P24AB by Vehicle Brand

FAQ

What does the P24AB code mean?

P24AB is an OBD-II diagnostic trouble code that indicates: EGR Cooler Coolant Pump Stuck On

What causes a P24AB error code?

The most common causes of P24AB include: EGR cooling pump malfunction; Short circuit in the pump control circuit; Faulty EGR coolant pump relay; Problems with the engine control unit (ECU).

How do I fix a P24AB diagnostic trouble code?

To fix P24AB: Check the functionality of the EGR cooling pump. Diagnose the electrical circuit and pump relay. Check engine control unit software. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24AB?

Limited driving only, diagnose soon

How much does it cost to fix P24AB?

The estimated repair cost for P24AB is $50–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat