When the position sensor 12 is operating normally, the reference position signal REF is output at {HEAD ~ BTDC 110°} by detecting the first pulse of the cam sensor 18 and counting the number of position signals POS10, e.g., counting {TAIL ~ 12 pulses} of position signal POS10 
by counting
When the position sensor 12 is operating normally , the reference position signal REF is output at { HEAD ~ BTDC 110 ° } by detecting the first pulse of the cam sensor 18 and counting the number of position signals POS10 , e.g. , counting { TAIL ~ 12 pulses } of position signal POS10
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH