Mine does the same occasionally, I simply switch the ignition off and straight back on, it either clears or I start to ride and (like the ABS should) all the fault lights go out within 20yds.
The only thing I would be tempted to do, if you have a multimeter, is hook it up to see battery voltage then start the bike and see what it goes to. If higher than about 14.4v it could possibly be spiking high on startup indicating a failing rectifier/regulator, that throws up similar fault codes, (been there).