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.