Kia Sorento: Heater & A/C Control Unit (DATC) Self Diagnosis - Controller - Heating,Ventilation And Air Conditioning - Kia Sorento XM 2011-2022 Service ManualKia Sorento: Heater & A/C Control Unit (DATC) Self Diagnosis

Second Generation XM (2011-2022) / Kia Sorento XM 2011-2022 Service Manual / Heating,Ventilation And Air Conditioning / Controller / Heater & A/C Control Unit (DATC) Self Diagnosis

1.
Self-diagnosis process

2.
How to read self-diagnostic code
After the display panel blinks three times every 0.5 second, the corresponding fault code blinks on the setup temperature display panel every 0.5 second and will show two figures. Codes are displayed in numerical format
Fault code
Display
Fail Description
00
Normal
11
In-car temperature sensor short (Low)
12
In-car temperature sensor open (High)
13
Ambient temperature sensor short (Low)
14
Ambient temperature sensor open (High)
17
Evaporator sensor short (Low)
18
Evaporator sensor open (High)
19
Air mix potentiometer open (Low) - Driver
Air mix potentiometer short (High) - Driver
21
Direction potentiometer open (Low) - Driver
Direction potentiometer short (High) - Driver
20
Air mix motor - Driver
22
Direction control motor - Driver
25
Intake potentiometer open (Low)
Intake potentiometer short (High)
26
Intake motor
32
Air mix potentiometer open (Low) - Passanger
Air mix potentiometer short (High) - Passanger
33
Air mix motor - Passanger
44
Cluster Ionizer fault
31
Auto defogging sensor signal and Glass sensor input fault
40
DEF Direction potentiometer open (Low)
DEF Direction potentiometer short (High)
41
DEF Direction control motor
46
APT sensor Fault (CAN signal)
47
Engine RPM Fault (CAN signal)
48
Vehicle Speed Sensor Fault (CAN Signal)
49
Engine Coolant Temp Sensor Fault (CAN Signal)

3.
Fault code display
(1)
Continuance operation : None or one DTC code.

(2)
Continuance operation : Two or more DTC code.

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

4.
If fault codes are displayed while checking, inspect for malfunction causes by referring to the fault code table.
5.
Fail Safe
No
Sensor
Fail condition
Fail safe function
1
In-car sensor
< 0.1V or > 4.9V
23C (73.4F)
2
Ambient temperature sensor
< 0.1V or > 4.9V
20C (68F)
3
Evaporator temperature sensor
< 0.1V or > 4.9V
 -2C (28.4F)
4
Temperature control actuator feedback - Driver
< 0.1V or > 4.9V
Setting temperature is 24.5C (76.1F) or below
Setting temperature is 25.0C (77F) or above: Max hot
5
Mode control actuator feedback - Driver
< 0.1V or > 4.9V
Vent: Vent
Others: Defog
6
Intake actuator feedback
< 0.1V or > 4.9V
Recirculation: Recirculation
Others: Fresh
7
Temperature control actuator feedback - Passenger
< 0.1V or > 4.9V
Setting temperature is 24.5C (76.1F) or below
Setting temperature is 25.0C (77F) or above: Max hot
8
Auto defogging sensor (Relative humidity)
Communication fail
Relative humidity: 60%,
Surrounding temperature : 23C (73.4F)
9
Auto defogging actuator feedback
< 0.1V or > 4.9V
Close: Close
Others: Open

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