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Electronic Climate control faults on 1997 855 T5 850

Hi-
ecmiller is my brother, I'm working with him on this, trying to help him read the codes the way you describe in your post. I assume the codes are read simply by counting the LED flashes?

I've got 2 questions for you about the process-

(1) What is the pushbutton switch to Pin 5 for? When do you push the button?

(2) What position must the key be in to read the codes? Engine running or not?

Many thanks-

KR






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