Discuss ECT 5 volt reference in the Auto Electrician Forum area at ElectriciansForums.net
HiYou are confused with how it works , your 2.3 volt is the reading ,It should vary between a cold engine and a hot one
(Hot normally lower if i remember right. ...)
Earths measure 0V to earth if they are good !
(but maybe something else when cranking -hence separate !)
.. Forgotten typical volts at moment (been a few years !)
reading live data should turn that into a figure -if way off -Sensor( May be to blame)
Ok thanks vehicle electrics work in mysterious waysIt depends... the 5V reference you talk about could have a built in pull up resistor inside the ECU, so when open cct you will indeed see 5v but put any resistance into the cct and it will reduce proportionally
Reply to ECT 5 volt reference in the Auto Electrician Forum area at ElectriciansForums.net
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