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

Kia Optima DL3 2019-2023 Service and Repair Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (DATC)

Components and components location

Components

Connector

Pin NO	Funtion	Pin NO	Funtion
1	Ground	9	Ground
2	ILL-	10	-
3	-	11	-
4	-	12	-
5	HTD	13	LIN BUS
6	-	14	ISG B+
7	ILL+	15	IGN2
8	IGN1	16	Battery (+)

Repair procedures

Self Diagnosis

Self-diagnosis process.

•	When operating the self-diagnostics, the below fault(self-diagnostics code) will blink at 0.5 seconds interval on the temperature display settings(driver's side only) and the remaining symbols are OFF .

Fault code display

(1)	Continuance operation : DTC code.

(2)	Continuance operation : DTC code.

(3)	STEP operation. A. Nomal or one fault code is same as a continuance operation. B. DTC code.

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 connector (A).

To install, reverse the removal procedure.

•	Make sure the connector are connected in properly.

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

Heater & A/C Control Unit (Manual)

Components and components location Components Connector Pin Function [Connector A] Pin NO Funtion Pin NO Funtion ...

Heater Control Unit

Components and components location Components Connector Pin Function [Connector A] Pin NO Funtion Pin NO Funtion ...

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