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Set Oscilloscope Display Crankshaft Sensor

Signal at idle:

Fig 1: Display - Alternator With Broken Coil Signal Screen (Idle)
G09841639Courtesy of BMW OF NORTH AMERICA, INC.

Signal at starting speed:

Fig 2: Display - Alternator With Broken Coil Signal Screen (Starting Speed)
G09841640Courtesy of BMW OF NORTH AMERICA, INC.