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TuningBot DTC Database · v4.37.15

C058B Brake Booster Motor B Position Sensor Circuit/Open

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

C · ChassisEngineOBD2

What C058B means

C058B
Brake Booster Motor B Position Sensor Circuit/Open Generic · engine Data confidence 65%

The control module detected an interruption (open circuit) in the Brake Booster Motor B Position circuit, so the expected electrical continuity was not present.

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

How to read C058B

C

Chassis: brakes, steering and suspension.

0

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

58B

Specific fault index within the subsystem.

Frequently asked questions about C058B

What does C058B mean?

Brake Booster Motor B Position Sensor Circuit/Open. The control module detected an interruption (open circuit) in the Brake Booster Motor B Position circuit, so the expected electrical continuity was not present.

Is C058B generic or manufacturer-specific?

C058B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove C058B 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 C058B is removable in your case.

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