[foxtrot3]

Hi. On a 9 year old car there is a good chance the alternator is on its way out, a faulty battery wont make the alternator light came on and a faulty earth to the engine which the alternator is earthed to will show itself as a car that wont want to crank. the only "sensor" that would make the light come on is the regulator which is a major part of the alternator anyway. With labour rates being so high nowadays you wont find a rebuilt unit so a new complete unit will be the go. Cheers MD