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Home >> Kia >> 2019 >> Optima EX >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater And A/C Control Unit (Except HEV) >> Heater & A/C Control Unit (Manual) >> Components And Components Location >> Components >> Connector Pin Function

Connector Pin Function

Connector Pin NO Function
A 1 COMMON
2 Ground
3 HIGH
4 LOW
5 MIDDLE LOW
6 MIDDLE HIGH
B 1 Battery (+)
2 ILL+(TAIL)
3 Sensor REF (+5V)
4 Mode Control Actuator F/B
5 Temperature Control Actuator F/B
6 Intake Actuator F/B
7 Evaporator Temperature Sensor (+)
8 Ambient Temperature Sensor (+)
9 -
10 Blower COMMON
11 HTD
12 Mode Control Actuator (VANT)
13 Mode Control Actuator (DEF)
14 Temperature Control Actuator (COOL)
15 Temperature Control Actuator (WARM)
16 Intake Actuator (FRE)
17 Intake Actuator (REC)
B 18 -
19 -
20 ILL-(RHEO)
21 IGN2
22 IGN1
23 SBR (AUDIO only)
24 PAB OFF Signal (AUDIO only)
25 PAB IGN1
26 Rear Defogging Switch
27 -
28 -
29 DETENT OUT (-)
30 Blower Max Signal
31 -
32 C CAN HIGH
33 C CAN LOW
34 -
35 ECV (+)
36 ECV (-) Ground
37 -
38 Sensor Ground
39 Ground
40 Ground