Where to tap speed sensor signal?

[peterbaron]

General info::

WSS is active IC hall type sensor and good at temperature and noise characteristic. Digital waveform is produced as tone wheel rotate according as hall sensor principal. Frequency of waveform is change in proportion to rotation of tone wheel and ECU calculate vehicle speed by this frequency
The ECU monitors WSS circuit continuously. Hi - Low voltage = 1.05 - 0.525 V
A direct current is supplied to the WSS by a power source in the input amplifier of the control unit.
In order to protect WSS when measuring output voltage a resistor must be used...(75 Ohms ???? if I am correct)
Do you really think that regular voltmeter will be useful????



Agree with Popgun, Max and SportsterDoc, Josh, stop experimenting = I am deadly serious. I don't even know if you should follow installation instruction of the electronic gizmo you bought. I really don't = have no judgement.