Turbocharger Control Valve
The turbocharger (TC) control valve is used to open and close the connection between the intake manifold and the pressure servo for the turbocharger (TC). The valve controls the pressure servo which affects the boost pressure control valve and therefore the boost pressure. See also: TURBOCHARGER (TC) CONTROL SYSTEM
The valve is an electro-magnetic valve which is powered from the system relay. When the valve is to be opened the valve is internally grounded in the engine control module (ECM). By grounding the valve using a pulse width modulated (PWM) signal the valve can be controlled.
The valve is closed when in the standby position (open-circuit).
The engine control module (ECM) can diagnose the turbocharger (TC) valve.
The turbocharger control valve is located on the upper part of the engine (near the upper engine mount).