Heated Seats
When equipped with navigation, heated seat request and indicator messages are communicated between the Front Controls Interface Module (FCIM) and HVAC module over the Controller Area Network (CAN), otherwise, heated seat request and indicator messages are always communicated between the HVAC module and heated seat module.
The engine must be running for the heated seat system to operate and it does not time out. The heated seat module supplies voltage to the heater mats. The heated seat module regulates seat temperature by monitoring a thermostat located in the cushion heater mat.
The heated seat module does not report DTCs and does not communicate on the communication network. If a fault is detected, the module will disable the affected seat(s) and indicator(s). After the fault is corrected, the heated seat module needs to be reset by cycling the ignition.
The heated seat module control circuits are monitored by the HVAC module and will set a DTC if a circuit fault is detected. Refer to the HVAC MODULE DTC TABLE .