Circuit/System Description
WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
For an overview of the component/system, refer to: Cooling System Description and Operation (LSY) , or Cooling System Description and Operation (LGY) , or Cooling System Description and Operation (LT4)
| Circuit | Description |
|---|---|
| B+ | Supplied from a fuse. |
| Serial Data | Digitally encoded information for communication between devices. |
| Ground | Chassis Ground |
| Component | Description |
|---|---|
| G8 Engine Coolant Pump - Auxiliary | The pump is driven by a 12 V DC motor. |
| K20 Engine Control Module | The control module contains a microprocessor used to process input data to control outputs. The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly. |
The auxiliary heater coolant pump circulates engine coolant through the HVAC heater core when the mechanical coolant pump is not operating.After an autostop event.