Question about 2000 Nissan Altima
The crankshaft position sensor (POS) is located on the cylinder
block rear housing facing the gear teeth (cogs) of the signal plate at
the end of the crankshaft. It detects the fluctuation of the engine rev-olution.
The sensor consists of a permanent magnet and Hall IC.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
Due to the changing magnetic field, the voltage from the sensor
The ECM receives the voltage signal and detects the fluctuation .
Before performing the following procedure, confirm that battery voltage is more than 10.5V with igni-tion
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Posted on Jul 16, 2008
The sensor is right by the passanger side drive shaft, where it goes into the transmission. Its right above the shaft. Single black connector with 3 wires coming out of it. Good luck changing it. Those are pretty tough to replace. I replace them from the top.
Posted on Jul 19, 2008
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Posted on Jan 02, 2017
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