SRS is the Safety (or Supplemental) Restraint System or your air bags. this light staying on after the car is started indicates a fault somewhere in the sensors, airbag unit or wiring. I guess it could also be a system that had previously deployed an air bag and it was not restored. I don't know much at all about the air bag system other than in my 96 most of the wires are yellow. They are yellow for a reason. Proceed with caution as you could deploy an airbag if you mess with this system while it has power. That is expensive and possibly dangerous if you are in the wrong place at that time.