Paddle Switches
When the switch is operated, a ground for the switch contacts is completed via a resistor. The completed ground signal is passed via a hardwired connection to the steering wheel module. The module converts the switch signal into a Local Interconnect Network (LIN) bus message which in turn is passed to the instrument cluster, via the steering wheel clockspring. The instrument cluster converts the LIN message into a high speed CAN bus message which is broadcast to the TCM and other system modules.