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Old 12-23-2018, 12:41 PM
80stech 80stech is offline
Join Date: Mar 2016
Location: Saskatchewan Canada
Posts: 882
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Originally Posted by andrewwynn View Post
I was thinking the same thing. Once you know the Ω value at a few values you can tweak the apparent resistance with either series or parallel to offset the temp to have the light come on at any temp you want.
No, first of all the 1/2 of the temp sender that works the light appears to be an old skewel normally closed switch, so can't really do much to change that other than maybe use a different sender. The wiring diagram for the temp sender shows both sides the same and NTC resistors internally but I think that is misleading and from what I can tell. I am going to double check that though. So what I am trying to do is read the temp from the DME side and turn the light on with that.
1988 325is (purchased new)
2004 X5 3.0 (new to me) 2005 X3 2.5 (new to wife)
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