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TuningBot DTC Database · v4.37.14

P25FD Turbocharger/Supercharger Bypass Valve C Temperature Too High

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

P · PowertrainEngineOBD2

What P25FD means

P25FD
Turbocharger/Supercharger Bypass Valve C Temperature Too High Generic · engine Data confidence 65%

The control module detected that the Turbocharger/Supercharger Bypass Valve C Temperature value was above the expected limit.

Symptoms

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

Possible causes

  • Turbocharger actuator or position sensor fault
  • Sticking variable geometry mechanism
  • Charge-air or vacuum leak
  • Wiring or connector fault

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

P25 range
P2500P2501P2502P2503P2504P2509P250AP250BP250CP250DP250EP250FP2511P2512P2513P2514P2515P2516

How to read P25FD

P

Powertrain: engine, transmission and driveline systems.

2

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

5FD

Specific fault index within the subsystem.

Frequently asked questions about P25FD

What does P25FD mean?

Turbocharger/Supercharger Bypass Valve C Temperature Too High. The control module detected that the Turbocharger/Supercharger Bypass Valve C Temperature value was above the expected limit.

Is P25FD generic or manufacturer-specific?

P25FD is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P25FD at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. 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: Diagnostic Strategy and DTC Logic

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