Kia Sportage: Controller / Heater & A/C Control Unit (DATC) Repair procedures

Kia Sportage QL (2015-2024) Service Manual / Heating,Ventilation And Air Conditioning / Controller / Heater & A/C Control Unit (DATC) Repair procedures

Self Diagnosis

1.	Self-diagnosis 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.

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.

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 close
25	Intake door potentiometer open/short
26	Intake door potentiometer fault
32	Temp door potentiometer open/short - Passenger
33	Temp door potentiometer fault - Passenger
45	APT CAN signal fault
47	RPM CAN signal fault
48	Vehicle speed signal fault
49	Engine coolant temperature CAN signal fault
50	Cluster ionizer fault
71	ECV fault

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 POTENTION METER	Open or Short	If temperature setting is 17°C-24.5°C, fix at maximum cooling position.
4	TEMP DOOR POTENTION METER	Open or Short	If temperature setting is 25°C-32°C, fix at maximum heating position.
5	MODE DOOR POTENTION METER	Open or Short	Fix vent position in vent mode.
5	MODE DOOR POTENTION METER	Open or Short	Fix defrost position in all modes except vent mode.
6	INTAKE DOOR POTENTION METER	Open or Short	Fix fresh position in fresh mode.
6	INTAKE DOOR POTENTION METER	Open or Short	Fix recirculation position in recirculation mode.
7	DEFOG DOOR POTENTION METER	Open or Short	Fix close position, while selecting close mode.
7	DEFOG DOOR POTENTION METER	Open or Short	Fix close position in orther cases.
8	ECV	Open	CF_Fatc_EcvFlt = 01H (fault) ECV OFF, A/C Output OFF, 0Nm
9	ADS	Open or Short	0Nm
11	C_SunRoofOpenState	NO reception	Control to the "close" value
12	CF_Clu_Driving Mode Swi	3h or NO reception	keep last value
17	F_N_ENG	NO reception	Control with the value of 650rpm
18	N	F_N_ENG="Error" or NO reception	Control with the value of 650rpm
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
28	TEMP_ENG	FFh or NO reception	Control with the value of - 2 °C(28.4°F)
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 crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel")

3.	Remove the shift lever knob (A).

4.	Using a screw driver or remover, remove the console upper cover (A).

5.	Disconnect the console upper cover connector (A).

6.	Using a screw driver or remover, remove the crash pad side cover[RH] (A).

7.	Remove the crash pad garnish (A) after loosening the screws.

8.	Remove the center fascia lower panel (A) after loosening the screws.

9.	Disconnect the connectors (A).

10.	Remove the heater & A/C control unit (A) after loosening the screws.

11.

Install in the reverse order of removal.

•	Make sure the connector are connected in properly.

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

Heater & A/C Control Unit (DATC) Components and components location

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