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Kia Forte: Temperature Control Actuator Inspection - Heater - Heating,Ventilation, Air Conditioning - Kia Forte TD 2014-2018 Service ManualKia Forte: Temperature Control Actuator Inspection

Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Heating,Ventilation, Air Conditioning / Heater / Temperature Control Actuator Inspection

1.
Turn the ignition switch OFF.
2.
Disconnect the temperature control actuator connector.
3.
Verify that the temperature control actuator operates to the cool position when connecting 12V to terminal 3 and grounding terminal 7.
Verify that the temperature control actuator operates to the warm position when connected in reverse.

1. -
2. -
3. Warm position
4. Sensor ground
 5. Feedback signal
6. Sensor (+ 5V)
7. Cool position

4.
Connect the temperature control actuator connector.
5.
Turn the ignition switch ON.
6.
Check the voltage between terminal 6 and 7.
Specification
Door position
 Voltage (V)
 Error detecting
Max. cooling
 0.3 ± 0.15
 Low voltage : 0.1V or less
Max. heating
 4.7 ± 0.15
 High voltage : 4.9V or more

It will feedback the current position of the actuator to the controls.
7.
If the measured voltage is not within specification, substitute with a known-good temperature control actuator and check for proper operation.
8.
Replace the temperature control actuator if it is proved that there is a problem with it.
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