Hi: I have a '76 124 Spider & the wipers stopped? I can hear a relay clicking under the dash. With the gauges out I can see 2 relays? The one on the left seems to be for the wipers? With a light probe (attached to a alligator clip for a ground) & the ignition turned on I have power to here. When I chek under the cowling (just before the wiper motor) no power. These connections appear dull. Is there a spray to clean this or do U have to replace this connection somehow, or is there an easy way to clean this plug?
All the question

mean , am I on the right trail, before I try to remove the relay, and what is the other one for?
Thanks: Brant from N,S. Canada