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Self-diagnosis process
Self-diagnosis process
How to read self-diagnostic code
After the display the 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 codes are displayed in numerical format.
Display | Fail description |
0 | Normal |
11 | In-car sensor open |
12 | In-car sensor short |
13 | Ambient temperature sensor open |
14 | Ambient temperature sensor short |
17 | Evaporator temperature sensor open |
18 | Evaporator temperature sensor short |
19 | Temperature door potentiometer open/short (Driver) |
20 | Temperature door potentiometer fault (Driver) |
21 | Mode door potentiometer open/short |
22 | Mode door potentiometer fault |
23 | Auto defogging sensor open |
24 | Auto defogging sensor short |
25 | Intake door potentiometer open/short |
26 | Intake door potentiometer fault |
32 | Temperature door potentiometer open/short (Passenger) |
33 | Temperature door potentiometer fault (Passenger) |
45 | APT (A/C Pressure Transducer) CAN signal fault |
47 | RPM CAN signal fault |
48 | Vehicle speed CAN signal fault |
49 | Engine coolant temperature CAN signal fault |
50 | Cluster ionizer fault |
51 | Dent sensor vent open |
52 | Dent sensor vent short |
53 | Dent sensor floor open |
54 | Dent sensor floor short |
Fault code display
Continuance operation : None or one DTC code.
Continuance operation : Two or more DTC code.
STEP operation
Normal or one fault code is same as a continuance operation.
There are two or more DTC code.
If fault codes are displayed when checking, inspect for malfunction causes by referring to fault codes table.
Fail safe
In-car temperature sensor : Control with the value of 25°C(77°F)
Ambient temperature sensor : Control with the value of 20°C(67°F)
Evaporator temperature sensor : Control with the value of -2°C(28.4°F)
Water temperature sensor : Control with the value of -2°C(28.4°F)
Temperature control actuator (Air mix potentiometer) :
If temperature setting is 15°C~22.5°C(59°F~72.5°F), fix at maximum cooling position.
If temperature setting is 23°C~30°C(73.4°F~86°C), fix at maximum heating position.
Mode control actuator (Direction potentiometer) :
Fix vent position, while selecting vent mode.
Fix defrost position, while selecting all except vent mode.
Intake control actuator :
Fix fresh position, while selecting fresh mode.
Fix recirculation position, while selecting recirculation mode.
Auto defog sensor : Control with the value of 0%.
