P0034 - Turbocharger/Supercharger Bypass Valve Control Circuit Low

System Information

Some Turbocharged / Supercharged systems can use a bypass valve (commonly called a dump valve) to relieve turbo boost pressure. The bypass valve will normally be vacuum operated with a solenoid controlling the vacuum to the valve.

Fault Code Explained

This fault code indicates that the circuit voltage is below what is expected or is at zero. This fault is most likely due to a short to earth, no supply voltage or an open circuit

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