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TuningBot DTC Database · v4.37.14

P012C Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low

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

P · PowertrainEngineOBD2

What P012C means

P012C
Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Generic · engine Data confidence 85%

The control module detected that the signal in the Turbocharger/Supercharger Inlet Pressure circuit stayed below the expected operating range.

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

P01 range
P0100P0101P0102P0103P0104P0105P0106P0107P0108P0109P010AP010BP010CP010DP010EP010FP0110P0111

How to read P012C

P

Powertrain: engine, transmission and driveline systems.

0

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

12C

Specific fault index within the subsystem.

Frequently asked questions about P012C

What does P012C mean?

Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low. The control module detected that the signal in the Turbocharger/Supercharger Inlet Pressure circuit stayed below the expected operating range.

Is P012C generic or manufacturer-specific?

P012C is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P012C 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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