Heated Steering Wheel

The heated steering wheel receives a battery power supply via the CJB. The heated steering wheel is controlled by the driver using a selection on the TSD. When the driver selects the heated steering wheel to be active, the request is passed from the TSD on the MOST ring to the information and entertainment module. The information and entertainment module converts the message into a medium speed CAN bus message which is passed to the CJB. The CJB processes the request and allows the battery power supply to be passed via the slip ring assembly in the steering wheel to the heated steering wheel control module. The steering wheel module supplies power to the steering wheel heater element and also monitors the temperature via a NTC (negative temperature coefficient) temperature sensor incorporated into the heater element. The control module varies the power supply to the element to maintain the steering wheel rim at the optimum temperature.