Alright, coming home tonight I had a couple problems. My speedometer started jumping everywhere. I would be going 50 and it'd be at 0 MPH. It'd then continue to start jumping around everywhere. My D4 light started blinking as well. I heard of this problem before and heard its not an ECU code, but a Tranny code. Does anybody have any idea what I can do here? I'm easy on the engine, and baby it. I never accelerate rapidly, don't race or anything. Do the usual 75 on the highway. Nothing out of the ordinary. I looked under my glovebox and felt around and it was all wet, maybe due to the Air Conditioning? Why was it wet? Is it always wet? I've never really felt around there before, so I don't know if its normal. I looked under my glovebox by where the passengers feet would go and found a blue plug with a red stripe through it thats tied to a yellow cord. Is this the one I need? Any help would be GREATLY appreciated. I really need it. Pics from people who have searched for codes, or even if they haven't but just have pics of the cord I'm looking for would be a HUGE help! THanks a bunch.