| 摘要 |
The passenger sets up the heater function, opens the heater core door(11) and makes sure that all the air flowing in the air path passes through the heater core(10). The air flowed in the heater core(10) carries out the heat exchange with the heated cooling water of the engine and after being heated, it is distributed to all the corners of the room. In the process, the microcomputer(3) takes a detection motion through the oxygen density sensor. It checks that the detected density of oxygen is lower than the established standard value. In case it is lower than the standard, forced ventilation procedure is taken.
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