Had problems with my 2003 honda accord,it cudnt

had problems with my 2003 honda accord,it cudnt start, the ignition turns..but the car still wudnt start.the mechanic tried 2 service the kick starter n loosen it out.a chip fell out 4rm the ignition area as the kick starter was brought out. the kick was succesfully serviced n installed, yet the car wudnt start.the mechanic is now saying the car key is bad, but am thinking its the little chip that fell out 4rm the ignition area that might b causing the problem.........pls pls ..can somebody advice me on what 2 do next...also any idea on a website where i can get the car ignition system diagram