The Vitara FSMs can be downloaded at no cost from Max stash over at the Suzuki forums (check the FAQ in the Grand Vitara section of the forum at
www.suzuki-forums.com), Eric may also have them somewhere here.
That out of the way, I'm not too familiar with the Tracker FSMs (I'm a long time, multiple vehicle, Suzuki owner), but from what I have seen, there are significant differences in how the manuals are laid out, with the Tracker manuals being more geared to a step-by-step, follow this flow chart approach, especially regarding electrical troubleshooting - I think of it as "idiot proofing" or trying to remove the mystery of electricity - personally I prefer the Suzuki approach, which may be a matter of familiarity with the material, or a greater comfort level with things electrical.
Last but not least - I believe there are differences in wiring colors and in some cases possibly the actual circuitry - how-to's on things like removing DRLs have indicated some differences in between how Chevy does things and the Suzuki diagrams at my disposal.