Since the Crankshaft Position Sensor's Signal triggers the Ignition Module (or Fuel Injection Computer) to start switching the Ignition Coil's Primary Current ground path On and Off... I usually refer to the sensor's signal as the Triggering Signal. Since the Crank Sensor (or Cam Sensor) is the one producing this Triggering Signal, I refer to it as the Triggering Device.
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Where are The CKP and CMP Sensors Located?
These Sensors are located in several different places depending on the year, make and/or model that you're working on. Some of them are in very hard to reach places and this, in my opinion, is the only thing that complicates testing them.
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Camshaft position sensor Work Video
Camshaft position sensor
Video shows the work of Camshaft, auto diagnostics, scanner, sensor, auto electronic.
Crankshaft position sensor
video explanation for Crankshaft position sensor
The function of the Crankshaft
As the pistons collectively might be regarded as the heart of the engine, so the crankshaft (fig. 3-40) may be considered its backbone
Engine Camshaft Position Sensor ,Automotive Sensor Testing & Operation
