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TuningBot DTC Database · v4.37.15

P0240 Turbocharger Boost Sensor B Circuit Range/Performance

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

P · PowertrainEngineOBD2

What P0240 means

P0240
Turbocharger Boost Sensor B Circuit Range/Performance Generic · engine Data confidence 90%

The control module judged the Turbocharger Boost Sensor B signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.

Symptoms

  • Possible reduced power or limp mode
  • MIL illuminated
  • Possible abnormal turbocharger noise

Possible causes

  • Intake/exhaust leak
  • hose connection(s)
  • MAP sensor

Recommended checks

  • Compare specified vs actual boost with live data
  • Check actuator movement over the full range
  • Check hoses and vacuum lines
  • Inspect wiring and connectors

Related and nearby codes

How to read P0240

P

Powertrain: engine, transmission and driveline systems.

0

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

240

Specific fault index within the subsystem.

Frequently asked questions about P0240

What does P0240 mean?

Turbocharger Boost Sensor B Circuit Range/Performance. The control module judged the Turbocharger Boost Sensor B signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.

Is P0240 generic or manufacturer-specific?

P0240 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0240 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 →

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