Heated Seat Operation

The heated seat system will operate only when the engine ON. The driver and passenger heated seats are controlled by the seat heating control module located under the driver seat cushion. Both heated seats are controlled by separate heated seat switches located in the HVAC control module. When a heated seat switch is pressed, a serial data message is sent from the HVAC control module to the seat heating control module indicating the heated seat command. In response to this signal, the control module applies battery voltage through the element supply voltage circuit to the appropriate seat heating elements. The seat heating control module then sends a serial data message back to the HVAC control module to either illuminate or turn off the heated seat switch indicator.