the battery is connected the output q of the ic2 is always set to 34 l 34 level in an initial state when the output of the first output terminal q 1 is 34 h 34 the ffic1 1 2 is momentarily reset to a time t 1 by the pulse having a width of several microseconds determined by the time constant of the resistor r 11 and the capacitor c 5 thus the output of the terminal q 1 of the ic1 1 2 becomes 34 l 34 in the initial state in the initial state that the terminal q 1 is 34 h 34 it is momentarily lowered to 34 l 34 while it is so set as to be t 1 lt lt t 2 t 1 u03b1c 5 r 11 t 2 u03b1r 3 r 5 in such a manner that the input terminal cd of the ic2 becomes 34 h 34 in the lapse of time t 2 determined by the r 5 and the c 3 and the timer ic is thereafter controlled by the operation of the switch 10 when the ignition switch 27 is closed and the automatic one touch push button switch 10 is contacted the output q 1 of the ic1 1 2 becomes 34 h 34 to momentarily generate a pulse having a width of several.