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Kia Optima: Heater & A/C Control Unit(Dual). Components and Components Location - Controller. Heater & A/C Control Unit(Manual) - Heating,Ventilation, Air Conditioning - Kia Optima TF 2011-2026 Service ManualKia Optima: Heater & A/C Control Unit(Dual). Components and Components Location

Components

Control Panel

Connector pin function

Connector pin function
Connector
 PIN NO.
 Function
 Connector
 PIN NO.
 Function
Connector(A)
 1
 Tail (+)
 Connector(A)
 25
 -
2
 Sensor REF (+5V)
 26
 Ambient Sensor (+)
3
 Hazard Signal
 27
 Incar Sensor (+)
4
 ACC
 28
 Evaporator Sensor (+)
5
 Mode Actuator (VENT)
 29
 ECV (+)
6
 Mode Actuator (DEF)
 30
 ECV (-)
7
 Mode Actuator (F/B)
 31
 Photo Sensor left (-)
8
 Intake Actuator (REC)
 32
 Photo Sensor right (-)
9
 Intake Actuator (FRE)
 33
 HTD
10
 Intake Actuator (F/B)
 34
 Rear Defog S/W
11
 Temp Actuator DR (COOL)
 35
 K – Line
12
 Temp Actuator DR (WARM)
 36
 -
13
 Temp Actuator DR (F/B)
 37
 -
14
 Temp Actuator PS (COOL)
 38
 -
15
 Temp Actuator PS (WARM)
 39
 -
16
 Temp Actuator PS (F/B)
 40
 GND
17
 C_Can HIGH
 Connector(B)
 1
 GND
18
 C_Can LOW
 2
 IGN2
19
 Detent OUT(-) Signal
 3
 Blower Motor (+)
20
 Rheostat
 4
 GND
21
 Ion Signal
 5
 FET (GATE)
22
 Clean Signal
 6
 FET (DRAIN F/B)
23
 Ionizer Diagnosis
 7
 IGN1
24
 -
 8
 Battery


Heater & A/C Control Unit(Manual). Repair procedures
Replacement 1. Disconnect the negative (-) battery terminal. 2. Using the screwdriver, remove the side cover (A). 3. Loosen the mounting scre ...

Heater & A/C Control Unit(Dual). Repair procedures
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See also:

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Installation
1. Remove the ignition key from the vehicle. 2. Disconnect the battery negative cable and wait for at least three minutes. 3. Install the seat belt ...

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