You will ideally find the connector view diagram, which has the terminal locations labeled. GM also tells you a general idea of what the wire is, along with the circuit number. Like to pick one at random, connector X2 pin 20 is serial data low, tan wire, circuit 2501. Mostly just adding to what Keith posted. I honestly did not know that about.. Can I get some help in understanding some symbols I find in WDS (wiring diagrams)? This is a snippet from my "Basic Body Module". It is a "solid state device" with "no user serviceable parts inside", so BMW isn't going to give me too much detail, but what is shown has some meaning and I don't understand it.. 793K members Since 2001 A forum.
Awesome. Thanks Seth! Had a few "projects" in mind that needed some definative wiring diagrams. These will work. BTW, is WDS part of TIS? Can't seem to find this index in my 2004 copy. Save Share. 293K members. Bimmerfest BMW 842K members. The BMW XM 170 members. Home. Forums. E46 Forums. E46 General.. First I took a look at the wiring harness by the amp (std. US-spec "Hi-Fi" stereo, non-L7). Wow! What a tangle. IMG_0695.JPG So I pried them apart to figure it out. Wiring Harness-1 copy.jpg Then, to avoid confusion I made this wiring diagram on the computer. BMW Hi-Fi Wiring Diagram.jpg Then I decided to make one to help out the Logic 7 folks.