Steering Wheel Temperature Control Switch

An additional temperature switch is mounted on the steering wheel in order to allow the driver to adjust the HVAC temperature. Power to the steering wheel control assembly is delivered from the rear fuse block, through the IP fuse block, the steering column fuse holder, and the inflatable restraint steering wheel module coil on the accessory voltage circuit. When the driver toggles the temperature switch, voltage is sent through a series of resistors. That varied voltage is sent back through the inflatable restraint steering wheel module coil to the radio through the remote radio control signal circuit. Once the radio receives the varied voltage signal, the information is sent out over the entertainment and comfort serial data circuit, to one of the IP fuse block connectors and on to the IPM where the air temperature actuator is adjusted.