Circuit/System Description
WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
For an overview of the component/system, refer to: Liftgate Description and Operation
| Circuit | Description |
|---|---|
| Signal | The control module input circuit has an internal resistance connected to 12 V. |
| Ground | Chassis Ground |
| Component | Description |
|---|---|
| S45B Liftgate Control Switch - Interior | Each function has its own switch. The switches are connected to a resistor ladder so that a specific resistance is generated for each switch. |
| K39 Liftgate Control Module | The control module K39 controls the liftgate motor function depending on inputs from a variety of sensors, switches and serial data information from other control modules. |