i recently bought a 2001 SS and while driving it will start bulb checking like the key has just been turned on i have replaced ign switch did not fix anything!! when it does this it does not have any running issue and the lights go right back off!! any idea???

 

Having a hard time understanding the problem

 

All the dash warning lights turn on and then off?

 

Welcome to the site. Sounds like a weird problem. I'm sure one of our many members will have some ideas.

 

when you start a vehicle or turn the key to the on position all the bulbs on your dash will flash on letting you know that the bulbs are not blown and are still working otherwise know as "bulb checking"...... the problem that i have is that my vehicle does this randomly when drive down the road... i have changed batt. check batt. cables, replaced ign switch.. and nothing seems to fix it.. i am sure it is going to be a module of some sort but which one? just thought someone else on here may have had the same problem???

 

Sounds like a ground/wiring/BCM issue. Going to be very tough to diagnose until you can get it to happen all the time.