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.
| Circuit |
Description |
| Signal |
The control module input circuit has an internal resistance connected to 12 V. |
| Ground |
Chassis Ground |
| Component |
Description |
| S171R Instrument Panel Center Accessory Function Switch - Right |
The switch has a normally open contact. |
| K9 Body Control Module |
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. |