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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 125 (Engine Controls And Fuel - 3.6L (LF4) - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P0234, P0299, or P16E7 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to: Compressor Air Intake Turbocharger System Description

Component Description
K20 Engine Control Module The control module contains a microprocessor used to process input data to control outputs.
The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly.
Q42 Turbocharger Wastegate Solenoid Valve A solenoid valve is an electro-mechanically operated valve. The valve is controlled by an electric current through the solenoid.
Turbocharger Wastegate Actuator The valve is actuated by a vacuum which is controlled by a solenoid valve.
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