Check engine, vsc and traction control lights all on?
I was driving to work them BAM all on? it happened before so auto zone read it and nothing showed up so they did a battery reset. not sure what the issue is if nothings showing up?
Same thing happened to me last week, while driving CEL, VSC off and TRAC off, but the codes that showed up were p0440, p0441, and p0446, which are related to the EVAP system so I cleared it and I'll see if it shows up again. Although since no codes showed up for you I'm not sure.... btw this was on an '02