Avalon XL V6-3.0L (1MZ-FE) (1997)
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Camshaft Position Sensor: Description and Operation
CIRCUIT DESCRIPTION
Camshaft position sensor (G22 signal) consist of a signal plate and pick up coil.
The G22 signal plate has one tooth, on its outer circumference and is mounted on the left bank camshafts. When the camshafts rotate, the
protrusion on the signal plate and the air gap on the pick up coil change, causing fluctuations in the magnetic field and generating an electromotive
force in the pick up coil. The NE signal plate has 34 teeth and is mounted on the crankshaft. The NE signal sensor generates 34 signals for every
engine revolution. The ECM detects the standard crankshaft angle based on the G22 signal and the actual crankshaft angle and the engine speed by
the NE signals.
