Seat Heater System On-Vehicle Inspection (If Equipped)
Precautions: Precautions for Body, Cab and Accessories · General safety (00)
Check that seat heater keeps specified temperature range when seat heater switch is set to “HI” position.
NOTE:
Seat heater control module uses thermostat information to maintain specified temperature at heater switch “HI” position, while “LO” position does not use the thermostat circuit.
Temperatures specified for “HI” position are controlled to turn off the electric current at seat temperature 40 °C (104 °F) and turn on the current at the temperature below 30 °C (86 °F).