Santa Fe GLS V6-2.7L (2002)
Coolant Temperature Sensor / Switch HVAC: Description and Operation
WATER TEMPERATURE SENSOR
Check
1. The water temperature sensor is located at the heater core, and detects coolant temperature flowing through heater core. It is a negative type
thermistor; resistence will increase with lower temperatures, and decrease with higher temperatures.
2. The sensor will compare temperature settings with the INCAR air temperature or the ambient air temperature for motive heating control.
3. Electromotive heating control
At AUTO mode, discharge mode to the FLOOR or B/L, if the coolant temperature is low, it will perform motive heating control to prevent cold air
discharge toward passenger legs.
1. Operation control
-
Discharge mode FLOOR or B/L at AUTO control
-
Coolant temperature is low
2. System operation
-
Mode door: DEF -> MIX -> AUTO
-
Blower level: AUTO LO -> AUTO HI
-
Intake door: Ambient air