Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Secondary air injection (AIR) valve/solenoid - open circuit
Cause:
    Wiring open circuit, fuse, AIR valve/ solenoid

GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Fuel Level Sensor 2 Circuit Low Input Conditions
Cause:
    Engine running, then the PCM detected that the Fuel Level sensor signal was less than 0.39v, condition met for over 2 minutes

Mazda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine coolant thermostat - circuit malfunction
Cause:
    Wiring, engine coolant thermostat, ECM

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Secondary air injection (AIR) valve/ solenoid - open circuit
Cause:
    Wiring open circuit, fuse, AIR valve/solenoid