Circuit/System Description

WARNING: This page is about a different car, the 2018 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Electronic Component Description
Transmission Component and System Description
Transmission General Description

Circuit	Description
Control - Terminal 1@X175	The output circuit is switched to ground to activate the component.
Control - Terminal 13, 14@X175	The output is PWM controlled.

Component	Description
K71 Transmission Control Module	The control module receives information from a variety of sensors, switches and serial data information from other control modules. This information is used to control a combination of solenoid valves to obtain the correct line pressure, gear ratio and torque converter clutch operation.
Q77 Transmission Control Solenoid Valve	A solenoid valve is an electro-mechanically operated valve. The valve is controlled by an electric current through the solenoid.