P004E - Turbocharger/Supercharger Boost Control Solenoid 'A' Circuit Intermittent/Erratic

System Information

A boost control solenoid is normally used to operate either a variable geometry turbocharger mechanism or a standard turbocharger wastegate mechanism.

Fault Code Explained

The ECM has detected that the circuit signal is not responding as expected and may be outside of normal operating parameters.

Recommended Tests