Second Row

OPERATION

The two momentary, push button-type rear heated seat switches provide a hardwired resistance signal to the applicable rear door module (left or right side). The rear door module sends a message over the Controller Area Network (CAN) data bus network to the Cab Compartment Node (CCN). The CCN then sends a message over the Local Interconnect Network (LIN) data bus to the heated seat module, signaling the module to energize the heating element for the selected seat. Light Emitting Diodes (LED) in each switch indicate the level of heat in use. The rear seat switch LEDs are controlled by the applicable rear door module.

The rear heated seat switches are diagnosed using a scan tool Testing and Inspection.

The two LED indicator lamps and the incandescent bulb in each heated seat switch cannot be repaired. If the indicator lamps or back lighting bulb are inoperative or damaged, the individual heated seat switch must be replaced.