No high beams in 245 DL

[guest]

I've had my 1990 245DL for about six months. Last week when I tried to put on the high beams the low beams went off but no high beams also the dash indicator doesn't light. It would seem that the relay is activating but might have a bad contact in it. Where is this relay located so I can check it out? It is not the headlight bulbs. Thanks