Hours: 07–23 daily

TuningBot DTC Database · v4.37.15

P24BF EVAP System Leak Detection Pump Switching Valve Control Circuit High

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

P · PowertrainEmissionsOBD2

What P24BF means

P24BF
EVAP System Leak Detection Pump Switching Valve Control Circuit High Generic · emissions Data confidence 65%

The control module detected that the signal in the EVAP System Leak Detection Pump Switching Valve Control circuit stayed above the expected operating range.

Symptoms

  • MIL illuminated
  • Possible fuel smell in case of larger leaks

Possible causes

  • Loose or faulty fuel filler cap
  • Cracked EVAP hose or line
  • Purge or vent valve fault
  • Fuel tank pressure sensor fault
  • Leak detection pump fault

Recommended checks

  • Check fuel filler cap seating first
  • Read fuel tank pressure sensor values
  • Actuate purge and vent valves and verify response
  • Smoke-test the EVAP system for leaks

Related and nearby codes

How to read P24BF

P

Powertrain: engine, transmission and driveline systems.

2

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

4BF

Specific fault index within the subsystem.

Frequently asked questions about P24BF

What does P24BF mean?

EVAP System Leak Detection Pump Switching Valve Control Circuit High. The control module detected that the signal in the EVAP System Leak Detection Pump Switching Valve Control circuit stayed above the expected operating range.

Is P24BF generic or manufacturer-specific?

P24BF is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P24BF 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

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

← Search the full DTC database