2. Turn the ignition "ON" and read the fault codes by the number of flashes of the indicator of the electronic control unit of the air conditioner and heater.
Note: If there are multiple fault codes, only the code with the lowest number (number of indicator flashes) will be displayed.
3. For fault codes, see the "Air conditioning system fault codes" table.
4. Turn the ignition "OFF".
5. After eliminating the cause of the malfunction, re-check.