Kia Cee'd: Heater / Temperature Control Actuator Repair procedures

Kia Cee'd Service Manual / Heating,Ventilation, Air Conditioning / Heater / Temperature Control Actuator Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the temperature control actuator connector.
3.
Verify that the temperature control actuator operates to the warm position when connecting 12V to terminal 3 and grounding terminal 4.
Verify that the temperature control actuator operates to the cool 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 4 and 5.
Specification
 
Door position
Voltage (V)
Error detecting
Max. cooling
0.3 ± 0.15V
Low voltage : 0.1V or less
Max. heating
4.7 ± 0.15V
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 specification, substitute with a known-good temperature control actuator and check for proper operation.
8.
If the problem is corrected, replace the temperature control actuator.
Replacement
[Driver’s Temperature Control Actuator]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Remove the driver side shower duct (A) after loosening the screw.

4.
Disconnect the connector (A) and then remove the temperature control actuator (B) after loosening the mounting screws.

5.
Install in the reverse order of removal.
[Passenger’s Temperature Control Actuator]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater & blower assembly.
(Refer to Heater - "Heater Unit")
3.
Separate the blower unit from the heater unit after loosening 3 screws.

4.
Disconnect the connector (A) and then remove the temperature control actuator (B) after loosening the mounting screws.

5.
Install in the reverse order of removal.
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