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

Kia Stinger CK 2018-2020 Service Manual / Heating, Ventilation And Air Conditioning / Controller / Heater & A/C Control Unit (DATC)

Components and components location
Components

Connector Pin Function

Connector A

Pin NO
Function
Pin NO
Function
1
Battery (+)
13
IGN2
2
ILL (+)
14
ISG Power
3
-
15
IGN1
4
-
16
-
5
LIN BUS
17
-
6
-
18
-
7
HTD
19
-
8
-
20
-
9
Rear Defogging Switch
21
-
10
-
22
DETENT OUT(-)
11
-
23
-
12
ILL (-)
24
Ground

Repair procedures
Self Diagnosis
1.

Self-diagnostic process

2.

How to read self-diagnostic code

After the display panel flickers three times at 0.5 second intervals, the corresponding fault code flickers on the setup temperature display panel at 0.5 second intervals and two digit figure will be displayed. Codes are indicated in numerical format.

3.

Fault code display

(1)

Continuous operation : One DTC code

(2)

Continuous operation : More than two DTC codes

(3)

STEP operation

A.

Normal or one fault code is the same as the continuous operation.

B.

More than two DTC codes.

4.

If fault codes are displayed during the check up, inspect possible causes of malfunction by referring to fault codes.

Display
Fail description
0
Normal
11
In-car sensor open
12
In-car sensor short
13
Ambient sensor open
14
Ambient sensor short
17
Evaporator sensor open
18
Evaporator sensor short
19
Temp door potentiometer open/short- Drive
20
Temp door potentiometer fault- Drive
21
Mode door potentiometer open/short 
22
Mode door potentiometer fault 
23
Auto defog sensor open
24
Auto defog sensor short
25
Intake door potentiomeer open/short
26
Intake door potentiomeer fault
32
Temp door potentiometer open/short - Passenger
33
Temp door potentiometer fault - Passenger
34
Console temp door potentiomeer open/short
35
Console temp door potentiomeer fault
36
Console on/off door potentiomeer open/short
37
Console on/off door potentiomeer fault
43
Auto defog potentiometer open/short
44
Auto defog potentiometer fault
45
APT CAN signal fault
47
RPM CAN signal fault
48
Vehicle speed CAN signal fault
49
Engine coolant temp CAN signal fault
66
Console temp switch open/short
71
ECV fault
72
Panel LIN communication fault

5.

Fail safe

NO.
Item
Fault
Fail Safe
1
In-car Sensor
Open or Short
Control with the value of 25°C(77.0°F)
2
Ambient temperature sensor
Open or Short
Control with the value of 20°C(67°F)
3
Evaporator temperature sensor
Open or Short
Control with the value of -2°C(28.4°F)
4
TEMP DOOR POTENTIOMETER
Open or Short
If temperature setting is 17°C-24.5°C, fix at maximum cooling position.
If temperature setting is 25°C-32°C, fix at maximum heating position.
5
MODE DOOR POTENTIOMETER
Open or Short
Fix vent position in vent mode.
Fix defrost position in all modes except vent mode.
6
INTAKE DOOR POTENTIOMETER
Open or Short
Fix fresh position in fresh mode.
Fix recirculation position in recirculation mode.
7
DEFOG DOOR POTENTIOMETER
Open or Short
Fix close position, while selecting close mode.
Fix open position in other cases.
8
ECV
Open 
CF_Fatc_EcvFlt = 01H (fault) ECV OFF, A/C Output OFF, Torque 0.2Nm 
9
ADS
Open or Short
HUMIDITY 0%
11
C_SunRoofOpenState
NO reception
Control to the "close" value
17
F_N_ENG
NO reception
650 RPM
18
N
F_N_ENG="Error" or NO reception
650 RPM
20
RLY _ AC
NO reception
Comp OFF (ECV OFF)
21
VS (Vehicle Speed)
FFh or NO reception
VS-TCU (From TCU2) 
22
VS TCU (Vehicle Speed Calculated by TCU)
FFh or NO reception 
Control with the value of  0 km/h
27
PV_AV_CAN
FFh or NO reception
Control with the value of  0%
28
TEMP_ENG
FFh or NO reception
90°C
29
R _ PAcnC (APT Sensor Output Value)
FFh or NO reception
Control with the value of 0 hPa (ECV OFF)
32
R_TqAcnApvC
FFh or NO reception
Control with the value of  0Nm (ECV OFF)

Replacement
1.

Disconnect the negative (-) battery terminal.

2.

Remove the heater & A/C control unit (A)

3.

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

4.

Install in the reverse order of removal.

  

Make sure that the connectors are connected properly.

Replace any damaged clips.

Controller
...

Heater Control Unit
Description and operation Description Smart Ventilation It is a system that actively ventilates when the humidity inside the passenger compartment increases with the air conditioning ...

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