Desided i can't take looking at my EVIC and it telling me its -40 outside due to me not having the ambient temp sensor. I called up the dealer and they told me that i need to provide them with a part number in order for them to be able to help me. (yea, dealer sucks, thats a whole nother story)

What is the part number for the ambient temp sensor? I have an 03 if that matters.

Could it be Part # 56041018AC or 56041018AB

HELP

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03 Black Freedom Edition.
Full Skids
Self Installed Evic.
Self Installed Auto-dim rear view
Custom light bar.

In the works : Lift kit, courtesy entry lighting, back up lighting and rear seat lighting.

Those are the same part#,the one with the "AC" is just a updated #,manufactures just update #'s at will.Same thing happened when I ordered my LCA's,I gave them the part# right off the LCA,they said that that part# was supersieded with a different one,it was the same # but with "AC" instead of "AA" for the last 2 digits,but when I got the new LCA's the part# was identical to the one's on my old LCA"s that ended in "AA".Go figure,DC just being dumb.