Kia Soul: Heater & A/C Control Unit (FATC) Self Diagnosis - Controller - Heating,Ventilation And Air ConditioningKia Soul: Heater & A/C Control Unit (FATC) Self Diagnosis

Kia Soul 2014-2019 PS Service Manual / Heating,Ventilation And Air Conditioning / Controller / Heater & A/C Control Unit (FATC) Self Diagnosis

1.
Self-diagnosis process
2.
How to read self-diagnostic code
After the display panel flickers three times every 0.5 second, the corresponding fault code flickers on the setup temperature display panel every 0.5 second and will show two figures. Codes are displayed in numerical format
3.
Fault code display
(1)
Continuance operation : DTC code is one.
(2)
Continuance operation : DTC code is more two.
(3)
STEP operation
A.
Nomal or one fault code is same as a continuance operation.
B.
DTC code os more two.

4.
If fault codes are displayed during the check, Inspect malfunction causes by referring to fault codes.
Display
 Fail description
00
 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
25
 Intake door potentiometer open/short
26
 Intake door potentiometer fault
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

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
 Water temperature sensor
 Open or Short
 Control with the value of -2°C(28.4°F)
5
 Temperature control actuator
 Open or Short
 If temperature setting 17°C-24.5°C, fix at maximum cooling position.
If temperature setting 25°C-32°C, fix at maximum heating position.
6
 Mode control actuator
 Open or Short
 Fix vent position, while selecting vent mode.
Fix defrost position, while selecting all except vent mode.
7
 Intake control actuator
 Open or Short
 Fix fresh position, while selecting fresh mode.
Fix recirculation position, while selecting recirculation mode.
9
 ECV
 Open
CF_Fatc_EcvFlt = 01H (fault) ECV OFF, A/C Output OFF, Torque 0Nm
10
 VS (Vehicle Speed)
 FFh or NO reception
 VS-TCU (From TCU2)
11
 VS TCU (Vehicle Speed Calculated by TCU)
 FFh or NO reception
Control with the value of  0 Kph
12
 N (Engine Speed)
 NO reception
 Control with the value of 650 RPM
13
 F_N_ENG
 FFh or NO reception
 Control with the value of 650 RPM
14
 TPS (Throttle Position Signal)
 FFh or NO reception
 0%
15
 Temp _ ENG
 FFh or NO reception
 Control with the value of - 2 °C(28.4°F)
16
 R _ TqAcnApvC (Max Torque Limitation of A/C Compressor)
 FFh or NO reception
 0 Nm (ECV OFF)
17
 R _ PAcnC (APT Sensor Output Value)
 FFh or NO reception
 0 hPa (ECV OFF)
18
 RLY _ AC
 NO reception
 Comp OFF (ECV OFF)

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