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TuningBot DTC Database · v4.37.15

P24AB EGR Cooler Coolant Pump Stuck On

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEmissionsOBD2

What P24AB means

P24AB
EGR Cooler Coolant Pump Stuck On Generic · emissions Data confidence 65%

The control module determined that the EGR Cooler Coolant Pump did not change state as commanded and appears stuck.

Symptoms

  • MIL illuminated
  • Possible reduced engine performance
  • Possible rough idle or hesitation

Possible causes

  • Carbon-blocked EGR passages
  • Sticking or slow EGR valve
  • EGR actuator or position sensor fault
  • Wiring or connector fault
  • Vacuum supply fault (vacuum-operated systems)

Recommended checks

  • Read freeze frame data and full module scan
  • Check battery voltage and sensor supply
  • Inspect EGR wiring and connectors
  • Compare commanded vs actual EGR position/flow with live data
  • Inspect EGR valve and passages for carbon build-up
  • Check related vacuum lines where fitted

Related and nearby codes

P24 range
P2400P2401P2402P2403P2404P2405P2406P2407P2408P2409P240AP240BP240CP240DP240EP240FP2410P2411

How to read P24AB

P

Powertrain: engine, transmission and driveline systems.

2

Generic SAE-standard code: same meaning on every make.

4AB

Specific fault index within the subsystem.

Frequently asked questions about P24AB

What does P24AB mean?

EGR Cooler Coolant Pump Stuck On. The control module determined that the EGR Cooler Coolant Pump did not change state as commanded and appears stuck.

Is P24AB generic or manufacturer-specific?

P24AB is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P24AB at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

Stage 1/2/3 TuningDPF RemovalEGR RemovalAdBlue / SCR RemovalDTC RemovalIMMO OFFSpeed Limiter (Vmax)

Understand the system behind this code: EGR System

ECU tuningDyno-tested results by model and engine See the results →

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