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Kia Sorento: Heater & A/C Control Unit (DATC) Self Diagnosis - Controller - Heating,Ventilation And Air Conditioning - Kia Sorento XM 2011-2024 Service ManualKia Sorento: Heater & A/C Control Unit (DATC) Self Diagnosis

Second Generation XM (2011-2024) / Kia Sorento XM 2011-2024 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
 23°C (73.4°F)
2
 Ambient temperature sensor
 < 0.1V or > 4.9V
 20°C (68°F)
3
 Evaporator temperature sensor
 < 0.1V or > 4.9V
  -2°C (28.4°F)
4
 Temperature control actuator feedback - Driver
 < 0.1V or > 4.9V
•
Setting temperature is 24.5°C (76.1°F) or below
•
Setting temperature is 25.0°C (77°F) 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 24.5°C (76.1°F) or below
•
Setting temperature is 25.0°C (77°F) or above: Max hot
8
 Auto defogging sensor (Relative humidity)
 Communication fail
•
Relative humidity: 60%,
•
Surrounding temperature : 23°C (73.4°F)
9
 Auto defogging actuator feedback
 < 0.1V or > 4.9V
•
Close: Close
•
Others: Open

Heater & A/C Control Unit (DATC) Component
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See also:

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