Generic
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    Turbocharger/Supercharger Boost Sensor "A" Circuit Low

GM
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    Turbocharger Boost Circuit Low Input Conditions
Cause:
    Key on or engine running, then the PCM detected that the Boost Pressure input was less than 40 kPa, condition met for 2 seconds