When, now, the door opening control switch 22 of the controlling device B is closed by, for example, a passenger in the vehicle, the relays R4 and {HEAD ~ R5} are simultaneously energized causing {TAIL ~ the normally open contacts} R4 2 and R5 1 to close and the normally close contacts R4 1 and 
When , now , the door opening control switch 22 of the controlling device B is closed by , for example , a passenger in the vehicle , the relays R4 and { HEAD ~ R5 } are simultaneously energized causing { TAIL ~ the normally open contacts } R4 2 and R5 1 to close and the normally close contacts R4 1 and
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