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

Kia Optima DL3 2019-2021 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
1.

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 .

2.

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).

5.

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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