Code Definition

P0047 — Turbo/Super Charger Boost Control Solenoid Circuit Low

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0047

P0047 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0047 is stored, the module has detected a signal or supply voltage lower than the expected operating range.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0047 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P0047 code is triggered when there is a low voltage condition detected in the turbocharger or supercharger boost control solenoid circuit. This solenoid is an essential component of the engine's forced induction system, regulating the amount of boost pressure supplied by the turbocharger or supercharger. A low voltage in the circuit can hinder the solenoid's ability to control boost levels effectively, potentially impacting engine performance and efficiency.

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