SLK 32 AMG (170.466) V6-3.2L SC (112.960) (2003)
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When the crankshaft is rotating, an alternating voltage is generated in the crankshaft position sensor by the teeth of the driven plate.
L5/4
Left CKP sensor (e.g. engine 120)
L5/5
Right CKP sensor (e.g. engine 120)
a
Leading edge of tooth
b
Trailing edge of tooth
c
2 missing teeth (gap)
s
Screening
x
Wiring diagram illustration of the position sensor Crankshaft with 2-pin coax-Plug contact
The leading edge of a tooth generates a positive voltage pulse and the trailing edge a negative voltage pulse. The distance from the positive to the
negative voltage peak corresponds to the length of a tooth.
The gap produced by 2 missing teeth results in no voltage being generated in the crankshaft position sensor. This is analyzed for detecting the TDC
position:
