Circuit/System Description
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. 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
| Circuit | Description |
|---|---|
| Control - Terminal 9 | The output circuit is switched to 12 V to enable the component(s). |
| Control - Terminal 16 | The output circuit is switched to ground to activate the component. |
| Component | Description |
|---|---|
| K71 Transmission Control Module | The control module contains a microprocessor used to process input data to control outputs.The control module contains a microprocessor used to process input data to control outputs.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. |
| Q77C Transmission Control Solenoid Valve 3 | A linear solenoid actuator is an electro-mechanical device that converts electrical power into a mechanical pushing or pulling force or motion.
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