What does it mean?
P0246 is a generic code trouble code defined as a Turbocharger wastegate regulating valve A circuit high. This code is triggered when the PCM (Powertrain Control Module) receives a signal from the wastegate’s solenoid that falls out of the predetermined range. While some of you already know how the turbocharging system works, we’ll still explain it briefly for those who don’t. The air delivered to the turbocharged engine’s intake is pressurized, which improves its efficiency and power output.
But this boost pressure must be controlled at any moment and adjusted accordingly, depending on driving conditions and charging levels. This is what the wastegate is for, as it acts as a relief valve that reduces the pressure when needed. This component is operated by a solenoid controlled by vehicles PCM. And when the PCM detects a voltage coming from the wastegate solenoid is higher than it should be, it will trigger the P0246 trouble code.