Circuit/System Description
WARNING: This page is about a different car, the 2022 Cadillac CT4. 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 |
|---|---|
| K9 Body Control Module | The control module contains a microprocessor used to process input data to control outputs. |
| S2L Automatic Transmission Manual Shift Auxiliary Position Switch - Left | The switch S2L has an internal resistor ladder network. A specific resistance is generated dependent on the position of the switch. |
| S2R Automatic Transmission Manual Shift Auxiliary Position Switch - Right | The switch S2R has three terminals. The switch has a resistor between the input terminal and the internal switch. When pressed or released the switch changes between two output terminals. |
The switches S2L and S2R are connected in series between the ground and the signal circuit and are inputs to the control module K9. When a switch is pressed, the voltage drop across the switches changes. The driver shift request is sent over serial data to the control module K71. The control module K71 ignores a shift request if the transmission shift lever is not in the manual mode position, or the operating conditions are out of range.