Heated Seat System Components
The heated seats system consists of the following components:
• | Driver heated seat relay module |
• | Passenger heated seat relay module |
• | Driver heated seat thermistor |
• | Passenger heated seat thermistor |
• | Driver back cushion heater element |
• | Driver seat cushion heater element |
• | Passenger back cushion heater element |
• | Passenger seat cushion heater element |
• | Passenger seat belt switch |
Heated Seat System Controls
The heated seats are controlled by the following components:
• | Passenger seat belt switch |
Heated Seat Operation
Ignition voltage is supplied to the heated seat switches. When a heated
seat switch is turned on, voltage is supplied through a resistor in the
switch to the heated seat switch signal circuits and then to the heated
seat module. Battery positive voltage and ground is supplied to the heated
seat module for the heated seat elements. The seat heater module monitors
the seat surface temperature through a thermistor located in the center of
the seat back. With the heated seat switch turned on and the resistance
through the heated seat thermistor within acceptable limits, the module
closes an internal relay and battery positive voltage is then supplied
to the seat heater elements. The passengers heated seat will not operate
unless the seat belt is connected. This is a safety feature that ensures
the seat will never remain ON.