Ok Guys... thanks for the replies...
Here's the plan...
1) I will check for loose wiring at the blower and make sure there is nothing obviously unattached or loose there. And if not...
2) I will build the basic OBD reader as suggested by KlausC... seems like a good thing to have anyway as I get only one reading on my fancy OBD reader and it has nothing to do with the ECC.
If the codes show that I have a blower motor issue... what codes can I expect that would indicate replacement as the best solution?
Also... what codes can I expect if I have a resistor issue? Replacement?
Is the resistor a fairly simple thing to replace? If not, and as they are not cheap, then the suggestion from you hf63 sounds good but can you give me a simple diagram or "how to" explanation... i.e... where is this harness you are talking about? Wire colours etc. Step by step would be appreciated.
If replacement is a consideration and you have a spare (my car is a 96 850 T) what would you need in return for the part? I live in Canada... and it's getting cold!
Are they relatively easy to get from the recycler instead?
Thanks again guys... I appreciate you sharing your knowledge.
Will keep you posted.
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