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Discussion Starter · #1 ·
Working on a 2005 G6 3.5 Cannot get the OBD port to connect. Pulled it out from under the dash and seen a burnt wire spliced in....Cut what I could and spliced together and still not able to connect. No odd symptoms. No lights on the dash. No fuses blown. I'm stumped. Found the diagram below. But there are 3 plugs into the BCM. Need advice
My questions are:
Think it needs a new BCM?
How would I find where on the BCM to test continuity?
Why would previous owner splice into this?

Any help would be greatly appreciated

Hand Finger Electrical wiring Thumb Wrist

Rectangle Slope Font Line Parallel
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