Heated/Cooled Accessories - Vented Seats - Operation

VENTED SEATS

The vented seat assemblies are located internally to both front seats. The driver and front passenger vented seats are turned on and off by two separate switches located in the ATC A/C-heater control. The vented seats will only operate when the engine is running, and will always stay off unless a vented seat switch is pressed. Once a switch is pressed, Light Emitting Diode(s) (LEDs) on the face of that switch will illuminate to indicate what speed the vented seat system for that particular seat is operating. The vented seats are controlled by the Heated Seat Module (HSM), also know as the comfort seat wheel module. The HSM provides variable analog voltages that drive a 12 volt vented seat motor that is located beneath each front seat. Each press of a vented seat switch will cause the vented seat fan to change speeds from off to hi, hi to lo and lo to off. Both vented seats operate separately from each other and will not operate at the same time as the heated seats. If for any reason a fault in the vented seat system becomes present, a Diagnostic Trouble Code (DTC) will set and a LED in the vented seat switch will illuminate for two seconds and then go out.

The vented seat system is diagnosed using a scan tool Testing and Inspection.