Hours: 07–23 daily
EN
Tune your file

TuningBot DTC Database · v4.38.5

C057D Brake Booster Temperature Sensor Circuit B Intermittent/Erratic

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

C · ChassisEngineOBD2

What C057D means

C057D
Brake Booster Temperature Sensor Circuit B Intermittent/Erratic Generic · engine Data confidence 65%

The control module detected an unstable or intermittent signal in the Brake Booster Temperature Sensor Circuit B circuit.

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

C05 range
C0500C0501C0502C0503C0504C0505C0506C0507C0508C0509C050AC050BC050CC050DC050EC050FC0510C0511

How to read C057D

C

Chassis: brakes, steering and suspension.

0

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

57D

Specific fault index within the subsystem.

Frequently asked questions about C057D

What does C057D mean?

Brake Booster Temperature Sensor Circuit B Intermittent/Erratic. The control module detected an unstable or intermittent signal in the Brake Booster Temperature Sensor Circuit B circuit.

Is C057D generic or manufacturer-specific?

C057D is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove C057D at file level?

Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether C057D is removable in your case.

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

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

← Search the full DTC database