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7.3 OPERATIONAL FLOW CHART
Power ON
VDD1=5V
Pin 68
bsens Pin 64
bsens=L
asens Pin 63
asens=L
DSENS
Pin 65
DSENS=L
A
B
C
ADPW← H
Pin 10
swvdd← L Pin 21
Source keys operative
Starts communication with Grille microcomputer.
300ms
300ms
In case of the above signal, the communication with Grille microcomputer may fail.
If the time interval is not 300msec, the oscillator may be defective.
D
E
Source ON
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