Traction light & ABS light remain on after car running,how to troubleshoot 123?

The brake pedal going to the floor has nothing to do with P0174 (too lean bank #2)which would be associated to the check engine light being on which you didn't report as currently being the case and may be a historical code. The ABS and traction control lights being on typically indicate that there is a fault in the ABS system and you will have to access that and retrieve codes from it to get started. CarMD. That company markets and sells their device in a manner that is very insulting to honest, hard working technicians. The scan tools that support your ABS system correctly and allow a shop/technician to diagnose and repair your car efficiently cost around $3000 to over $8000 depending on options and coverage. With the way CarMD markets their toy it would be fitting for their customers to not have any people trained and qualified to service their cars.