RAM 2500 Truck 2WD L6-5.9L DSL Turbo VIN C (2002)
Fig. 7 Notches At Rear Of Camshaft Drive Gear
The sensor detects machined notches on the rear face of the camshaft drive gear to sense engine speed.
The CMP also detects an area on the camshaft drive gear that has no notch. When the sensor passes this area, it tells the Engine Control Module (ECM)
that Top Dead Center (TDC) of the number 1 cylinder is occurring. The ECM will then adjust fuel timing accordingly
As the tip of the sensor passes the notches, the interruption of magnetic field causes voltage changes from 5 volts to 0 volts.
