General Precautions of EFI System Maintenance
F-49
2. The rotational speed signal may be detected but the crankshaft software reference point signal (BM)
cannot be detected.
3. The crankshaft software reference point signal (BM) is frequently missing.
The schematic diagram for the crankshaft software reference point signal (BM) frequently found before or
behind the expected position is given as follows:
1. Correct Situation:
2. Spacing of Large Tooth Delayed by the Time of One Tooth than Nominal Position→ One Tooth More
Inductive Gear Ring Rotating Direction
by Adding One Tooth in Next S
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