Steering Wheel Switches
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The cruise control steering wheel mounted switches are momentary contact switches that toggle up and down for the switch state. The switches are an input to the SCCM. For vehicles equipped with adaptive steering, the switches are an input to the SECM in the steering wheel. The switch signals are sent to the SASM from the SECM on HS-CAN2 circuits. The SASM sends the switch signals to the SCCM on the HS-CAN2 circuits.