Kia Optima: Controller / Heater & A/C Control Unit (Manual)

Kia Optima DL3 2019-2021 Service and Repair Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (Manual)

Components and components location
Components

Connector Pin Function

[Connector A]

Pin NO
Funtion
Pin NO
Funtion
1
Battery (+)
21
IGN2
2
ILL+ (TAIL)
22
IGN1
3
Sensor REF (+5V)
23
-
4
Mode Control Actuator Feedback
24
-
5
Temperature Actuator Feedback
25
-
6
Intake Actuator Feedback
26
-
7
EVAP Sensor (+)
27
-
8
AMB Sensor (+)
28
-
9
-
29
CAN High
10
Max Blower signal
30
CAN Low
11
Blower on signal
31
-
12
Temperature Control Actuator (Warm)
32
HTD (Rear Defrost)
13
Temperature Control Actuator (Cool)
33
P_CAN High
14
Intake Actuator (Recirculated Air)
34
P_CAN Low
15
Intake Actuator (Fresh Air)
35
-
16
Mode Control Actuator (Defrost)
36
-
17
Mode Control Actuator (Vent)
37
-
18
Sensor Ground
38
ECV+
19
ILL - (RHEO)
39
ECV- (Ground)
20
Ground
40
Ground

[Connector B]

Pin NO
Funtion
Pin NO
Funtion
1
Low
4
Middle Low
2
Common
5
Middle High
3
Ground
6
High

Repair procedures
Replacement
1.

Disconnect the negative (-) battery terminal.

2.

Using a screwdriver or remover, remove the floor console upper garnish (A).

3.

Loosen the mounting screws and remove the A/C & heater controller unit (A).

4.

Disconnect the A/C & heater control connectors (A).

5.

To install, reverse the removal procedure.

  

Make sure the connector are connected in properly.

Replace any damaged clips (or pin-type retainers).

Controller
...

Heater & A/C Control Unit (DATC)
Components and components location Components Connector Pin NO Funtion Pin NO Funtion 1 Ground ...

Other information:

Kia Optima DL3 2019-2021 Owner's Manual: Battery


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Kia Optima DL3 2019-2021 Service and Repair Manual: Ignition Switch Assembly


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