01-24
(7) Self-diagnosis
The FATC has a self-diagnosis function that can diagnose the system by itself. If this system is
defective, the LCD display shows the diagnostic trouble code (DTC) to inform a driver of defects on the
device such as a sensor or actuator. The driver can see the each sensor data on the air conditioning
system after entering self-diagnosis mode. Before checking each component, be sure to check the
default code by using self diagnosis function.
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Diagnostic trouble code
Code
00
21
Ambient temperature sensor
22
23
Water temperature sensor
24
26
Temp door (control)
31
Mode door (vent)
32
Mode door (bi-level)
33
Temp door (cool)
34
35
Mode door (defroster & foot)
36
Mode door (defroster)
37
Intake door (fresh air)
38
39
Intake door (recirculation)
Defective part
Normal
Incar sensor
Intake sensor
Mode door (foot)
Intake door (1/3)
Diagnostic trouble code
Open circuit in sensor
Diagnostic trouble code
The diagnostic trouble code (DTC)
flashes twice and is displayed
repeatedly in order as long as a
separate operation is not performed.