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.
For an overview of the component/system, refer to:
- Electronic Component Description
- Transmission Component and System Description
- Transmission General Description
| Circuit | Description |
|---|---|
| Control - Terminal 18, 19@X175 | The output circuit is switched to 12 V to activate the component. |
| 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. |
Control module supplies ignition voltage to the following components:
Control Circuit - Terminal 18@X175
- Q77D Transmission Control Solenoid Valve 4
- Q77E Transmission Control Solenoid Valve 5
- Q77H Transmission Control Solenoid Valve 8
Control Circuit - Terminal 19@X175
- Q77A Transmission Control Solenoid Valve 1
- Q77B Transmission Control Solenoid Valve 2
- Q77C Transmission Control Solenoid Valve 3
- Q77F Transmission Control Solenoid Valve 6
- Q77G Transmission Control Solenoid Valve 7
- Q77J Transmission Control Solenoid Valve 9