Kia Rio: Heater & A/C Control Unit (MANUAL) Components - Controller - Heating,Ventilation, Air Conditioning - Kia Rio UB 2012-2020 Service ManualKia Rio: Heater & A/C Control Unit (MANUAL) Components


Connector pin function
Connector
Pin No
Function
Connector
Pin No
Function
A
1
Ground
B
18
Intake Actuator Feedback
2
Middle High
19
Temperature Actuator Feedback
3
Middle Low
20
Vref (5V)
4
High
21
-
5
Low
22
-
6
-
23
Rear Defrost Switch (Low)
B
1
Mode Actuator (Vent)
24
HTD (Rear Defrost Indicator)
2
Mode Actuator (Defog)
25
Detent Out (+)
3
Intake Actuator (Fresh)
26
-
4
Intake Actuator (Recirculation)
27
Evaporator Temperature Sensor
5
Temperature Actuator (Cool)
28
Ambient Temperature Sensor
6
Temperature Actuator (Warm)
29
-
7
PTC On Signal
30
-
8
PTC Relay #2
31
ECV IN
9
PTC Relay #3
32
ECV OUT
10
Seat Warmer Signal (Low) - Driver
C
1
IGN 2
11
Seat Warmer Signal (High) - Driver
2
Rheostat (ILL-)
12
-
3
Sensor Ground
13
CAN (Low)
4
Battery (+)
14
CAN (High)
5
Tail Lamp (+)
15
Blower Feedback
6
Blower Common Signal (-)
16
Ground
7
IGN 1
17
Mode Actuator Feedback
8
Ground

Controller
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Heater & A/C Control Unit (MANUAL) Schematic Diagram
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See also:

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Signal Waveform
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