Seat Heaters System Description - Failsafe Function
Thermistor Circuit Open Failure
When the seat heater control unit detects a thermistor wire break, it stops the heater output 90 seconds after detection and turns off the seat heater switch indicator.

Thermistor Circuit Short Failure
When the seat heater control unit detects a thermistor short-circuit, it stops the heater output immediately after detection and turns off the seat heater switch indicator.

Heater Circuit Current Error
When the seat heater control unit detects an abnormal current value in the heater circuit, it stops the heater output immediately after detection and turns off the seat heater switch indicator.