- Double check your work.
- Be aware that today's ECUs look at everything. A sensor out of spec or even temporarily disconnected will cause the system to throw a code. And, at least for the most recent Suzukis, there's no way to reset the code on your own without tools. The old trick of removing the negative battery cable and waiting just doesn't work.
- Get friendly with your local Suzuki dealer if you plan to modify your bike. I'm told that customers with good reputations at the service counter—something I do not have, since they hardly ever see me—might get codes read and fault lights reset as a courtesy. But it'll run $40-50 for the tech's time to hook up the Suzuki tool, read the codes, and reset the warning if you're just some guy off the street. And, it should be said, the Suzuki techs are trained to make sure that whatever fault found by the computer is actually fixed; so your service visit might be longer and more expensive if something is wrong beyond a sensor left un-connected.
- You can buy the box Suzuki's techs use for about $200-250. This is probably a good investment if you're planning lots of mods to your machine.