Heated Seat Switch

Heated Seat Switch

Description






The heated seat switches (3) for the 2nd row seats are located in the sliding door trim panels (6) near the door handles. These switches allow the 2nd row seat passengers to select from two different levels of electrical seat heating (HI/LO). Amber light emitting diodes in the top portion of each switch indicate the level of heat in use: Two LEDs are illuminated for high, one for low, and none for off. Pressing the switch once will select the highest level of heating. Pressing the switch a second time will select the lowest level of heating. Pressing the switch a third time will shut the heating elements off.

The two momentary, push button type heated seat switches provide a hard wired resistance signal to the applicable Rear Door Module (RDM) (left or right). 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.

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.