Hi. Find your fusebox and the indicator relay should be located there or nearby. sometimes it might be in the engine bay. It is usually a little black box roughly 50mm or 2inch cube, approximately. it should just slip onto spade type connectors but maybe stiff so wiggle it off gently. careful not to damage spades, especially if old car.
Go to scrapyard and get a replacement before you mess with it. should be pretty cheap. if that doesnt work then i would say it is the wiring. you can figure this out with voltmeter, but is not very easy.
Liam
September 2009