Anyone know if the Alldata DIY site will have the pinouts and plug details for a 2005 5.3 Suburban pcm when you get that $25 subscription? Also, where can I find information such as what wires are in what plugs coming out of the firewall on a 96 S10 Blazer. I've identified the 4x4 transfer case and front differential wires,as well as all the exterior lights and horns and the fuel pump and sender wires. Also know which are airbag system wires. Kinda hard to figure whats what when there are five or six of each color coming out of the firewall. Don't want to hook the old harness back up just to trace the wires out to their final resting place. Thanks

 

It should have both. It will have every plug listed by number with a drawing of what it looks like and what the wires go to. It will also have wiring diagrams for everything. As far as I know it has all the information that is in a factory service manual. Last time I was there they had a couple demo vehicles that you could look through.