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Join Date: Mar 2006
Location: US
Posts: 325
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Bench Test - Speed Impulse Sensor

A speedo that quits is often attributed to a failing circuit board, but while the sensor is on a table, putting a magnet across the face with an ohm meter, shows 187 ohms for a brief moment, but will not repeatedly show this using magnet back and forth again.

If there are magnets inside the diff, the test might be worth something, but otoh the green wire connection is 12V with key on, so the proper test may be of another kind..




Old 03-02-2021, 07:52 PM
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