紧急出口警报器（EDM）只有在紧急出口门已关闭和上锁时才允许启动发动机。
The Emergency Door Module (EDM) allows the engine to be started only when the emergency exit door is closed and unlocked.
它用来储存电，用于启动以及在发动机关闭时为钟、收音机和CD播放机等辅助装置供电。
It is used to store electricity, start and provide electricity for clock, radio and CD player and other accessary devices when the engine is closed.
自动亮灯功能，启动发动机亮灯，关闭灭灯；
Lighting automatically, turn on while starting the engine, turn off while close it;
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