If your check engine light is on and you've scanned your car's computer for codes, you may have found code P2262. This trouble code indicates that there is an issue with the turbocharger or supercharger bypass valve circuit.
In order to understand what this code means, it's important to know how a turbocharger or supercharger works. Both of these devices force more air into the engine's cylinders, which allows the engine to burn more fuel and produce more power. The bypass valve is used to regulate the amount of air that bypasses the turbo or supercharger.
When the engine control module (ECM) detects an issue with the bypass valve circuit, it will set code P2262. Possible causes for this code include a faulty bypass valve, a blockage in the exhaust system, or a problem with the ECM itself.
To diagnose this code, a mechanic will hook up a diagnostic scanner to the vehicle's computer and look for any other codes that may be stored in memory. They will then test various components in the circuit, including the bypass valve itself. Once they identify and repair the underlying issue, they can clear all codes from memory and turn off the check engine light.