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

Kia Optima DL3 2019-2025 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).

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 2019-2025 Owner's Manual: Checking tire inflation pressure

Check your tires once a month or more. Also, check the tire pressure of the spare tire. How to check Use a good quality gauge to check tire pressure. You can not tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they're under ...

Kia Optima DL3 2019-2025 Owner's Manual: Sunroof inside air recirculation

The outside (fresh) air position is automatically selected, when the sunroof is opened. When you select the recirculated air position, the system maintains the recirculated air position for 3 minutes and then automatically converts to the outside (fresh) air position. When the sunroof is clo ...