Not as fast as I would like. Here are some photos of some of "the mysteries" Photo on left shows BCM body control module. The one on the right shows the DLC data link connector in the middle on the left

Here is my 2003 radio plug,..lower..blue in color [top plug from B1 orange to B#12 ppl/white] .. & gray [bottom plug From A1 gray to A12 black] ..12 pins each. This should be accurate.1998 blazer ohc plug [DIC] pin #7 to A9, pin#8 to A12 or ground,pin#9 to VSS [computer under hood connector 4 pin#3]..I don,t know how to tell which is which,pin#10 to temperature sensor by grille,pin#11 to B#4,pin#12 to B#12,pin#13 mt., pin#14 to B1, and pin#15 to Data link connector under dash by drivers left knee. pin #2 . I hope this fills in some blanks

Here are my under hood 03 computer plugs..Top..blue bottom..green where is connector 4 pin #3? Is it a blue or green plug left or right? pin 3 starting from left or right

 

I have combined your three threads of photos. I suspect most members are like me and wondering exactly what you are trying to accomplish? Can you tell us more about your goal and how these photos relate to it?

 

I am installing a 1998 gmc envoy long overhead console in my 03 ZR2 and I,m having a few problems sorting out the wiring info. Knowing these terms bcm,ats,dic would be a help etc. I along with some others did not know where some of these plugs were located or what they looked like.The biggest thing so far for me was finding out that the plug at the back of the radio did not match the schematics. Just trying to help.

 

For any of the above to be useful to anyone else, you really need to state what you are trying to accomplish. Please do not post across multiple threads, but rather keep it all in one thread pertaining to the topic. Also, if you have more than 5 pictures to post, please use any one of the free online photo hosts.

 

I am sorry I am in the midst of connecting everything and multiple questions arise as I go.I am not a computer guru and do not know how to use an online host. I will not post more than a couple in future.