2. While holding the "AUTO" button, press the "OFF" button within 2 seconds at least 4 times.
4. Read the two-digit code on the display.
3. Make sure that all symbols on the climate control display light up and go out 3 times at 0.5 second intervals.
5. To display the next fault code, press the "A/C" or "AUTO" button.
6. To complete the procedure for displaying fault codes, press the "0FF" button
| Two-digit code | Faulty unit (malfunction) |
| 00 | Normal operation of the air conditioner |
| 11 | Cabin Air Temperature Sensor (Open Circuit) |
| 12 | Cabin Air Temperature Sensor (Short Circuit) |
| 13 | Ambient air temperature sensor (open circuit) |
| 14 | Ambient air temperature sensor (short circuit) |
| 15 | Water temperature sensor (open circuit) |
| 16 | Water temperature sensor (short circuit) |
| 17 | Evaporator Temperature Sensor (Open Circuit) |
| 18 | Evaporator temperature sensor (short circuit) |
| 19 | Temperature controller potentiometer (open or shorted) |
| 20 | Temperature flap drive |
| 21 | Mode regulator potentiometer (open or shorted) |
| 22 | Air distribution flap drive |
| 23 | Air humidity sensor (open circuit) |
| 24 | Air humidity sensor (short circuit) |