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TuningBot DTC Database · v4.37.15

U0675 Lost Communication With Turbocharger/Supercharger Speed Sensor A

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

U · NetworkEngineOBD2

What U0675 means

U0675
Lost Communication With Turbocharger/Supercharger Speed Sensor A Generic · engine Data confidence 65%

The control module stopped receiving expected network messages from the Turbocharger/Supercharger Speed Sensor A node on the vehicle communication bus.

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 U0675

U

Network: communication between control units.

0

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

675

Specific fault index within the subsystem.

Frequently asked questions about U0675

What does U0675 mean?

Lost Communication With Turbocharger/Supercharger Speed Sensor A. The control module stopped receiving expected network messages from the Turbocharger/Supercharger Speed Sensor A node on the vehicle communication bus.

Is U0675 generic or manufacturer-specific?

U0675 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove U0675 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 U0675 is removable in your case.

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