9-3 Convertible (9400) L4-2.0L Turbo (2.0 HOT) (2003)
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The control section of the valve contains an integrated circuit and a transistor that grounds the coil when the valve is activated. +54 is supplied to the coil
and activates the integrated circuit on pin 1, while the coil is grounded via pin 2 to grounding point G3.Communication on the VR bus takes place on pin
4 with signal ground via pin 3 to grounding point G36.
The STC control module controls each valve with the message "Hydraulic valve X, unit ON/OFF" on the VR bus.
