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Home >> Kia >> 2021 >> Rio S, 4D Hatchback >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater And A/C Control Unit >> Heater And A/C Control Unit (FATC) >> Components And Components Location >> Components >> Connector Pin Function

Connector Pin Function

No. Connector A Connector B
1 Battery -
2 ISG battery (+) -
3 Illumination (+) -
4 Sensor (REF) (+) Defogging actuator Feedback
5 Mode control actuator Feedback Defogging actuator (Open)
6 Temperature control actuator Feedback Defogging actuator (Close)
7 Intake actuator Feedback -
8 Evaporator sensor (+) -
9 Ambient sensor (+) -
10 Mode control actuator (VENT) -
11 Mode control actuator (DEF) Defog current
12 Temperature control actuator (COOL) Defog temperature
13 Temperature control actuator (WARM) Defog sck
14 Intake actuator (FRE) Defog data
15 Intake actuator (REC) -
16 HTD Ground
17 Rear defog switch  
18 -
19 -
20 -
20 Illumination (-)
21 IGN2
22 IGN1
23 Blower motor (+)
24 Photo sensor (-)
25 -
26 -
27 -
28 PTC relay 3
29 PTC relay 2
30 PTC on signal
31 Detent out (-)
32 -
33 Chassis_CAN (High)
34 Chassis_CAN (Low)
35 FET (Drain hose Feedback)
36 FET (Gate)
37 ECV (+)
38 ECV(-)
39 Sensor ground
40 Ground