[marcocaragua2]

I need to solve a doubt. I have 2 models of sensor hall and testing them with the oscilloscope when I pass a metal part on it sometimes the output is 0 volts locked, even without having the metal part on it. This is normal? I am using a 10k resistor on the positive connected output pin.

[Whikel]

I need to solve a doubt. I have 2 models of sensor hall and testing them with the oscilloscope when I pass a metal part on it sometimes the output is 0 volts locked, even without having the metal part on it. This is normal? I am using a 10k resistor on the positive connected output pin.

I've read about "toggle" type hall sensors but i think they're not used on vehicles. IMO, you have a faulty sensor. Do you buy it new or is used?

[jrbe]

If it is a latching hall sensor try testing it with the north and south piles of a magnet. If it is a latching hall sensor you should see high from one pole then low from the other (as long as the pull up /down resistor and voltages are correct.) It will stay high or low taking the magnet away. They need to see the other pole to switch.