Quote:
Originally Posted by John5788
so if i cannot get resistance on the pins when tested against ground, that means my sensor is broken? my cluster gauge works perfectly fine, however, i couldnt get a resistance from the gauge sensor. am i doing the test incorrectly?
|
I assume you are talking about the single wire sensor...
There has to be an R value from the pin to ground or the gauge would not be working. The R will be variable with the coolant temp [ Negative Coefficent Thermistor]..meaning R decreases as temp increases
Zero your meter and then try it..I gave you the Ohm values.
The gauge should NOT work when you unplug the sensor.......
http://catalog.worldpac.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=2AO123CS42DU0M0ZSB&year=1993&make=MB&model=190-E-005&category=P&part=Water+Temperature+Sender