9-3 (9440) V6-2.8L Turbo (2008)
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Two Hall sensors which measure wheel speed using a 48-pole magnetic disc, which provides 48 pulses per rotation.
The Hall sensor sends a square pulse with a 50% pulse-rate.
The control module uses the frequency to calculate wheel speed; by measuring variation in current consumption, the frequency can be measured. The
frequency increases with a corresponding increased wheel speed from 0 to 2000 Hz.
Connection
Connection (Part 1)
