Diesel Data: Automotive Repair

Steering Column: Description and Operation: Overview




Steering Column Switches

Overview

The steering column switches are located on or around the steering column. This enables the driver to control various vehicle functions and remain focused on the task of driving. Depending on vehicle options, the steering column switches consist of:
- Multifunction switch - mounted on the left side of the SASM (Steering Angle Sensor Module) and can be serviced separately. REFER to Multifunction Switch.
- Steering wheel switches - mounted on the front of the steering wheel and can be serviced separately from the steering wheel. REFER to Steering Wheel Switches.
- Wiper and washer switch - mounted on the right side of the SASM (Steering Angle Sensor Module) and can be serviced separately. REFER to Wiper and Washer Switch.

The steering column switches interface with other modules and components on the vehicle through the SASM (Steering Angle Sensor Module). The SASM (Steering Angle Sensor Module) communicates the steering column switches input through a LIN (Local Interconnect Network) to the BCM (Body Control Module) and the BCM (Body Control Module) sends the request over the CAN (Controller Area Network).