I managed to find a used headlight relay for my Riviera, but I am not sure how to test it (the car is partially disassembled, so I can't just hook it up and try it). Does anyone know the procedure for testing the headlight relay that is mounted on the cowl next to the hood hinge on the drivers side of a 67 Riviera? This is the relay with the round connector base at the #4 position. Thanks in advance, Randy
Wow, I thought somebody here would have this one figured out. I guess my only option is to put the car back together enough to pull the switch and see what happens. Later, Randy
It's always best to test these things "in circuit" to be certain. I suppose if you have a circuit diagram, then you may be able to decipher which wire goes to which pin. Then if you grounded the case, and then figured out which pin goes to positive, you could listen for the click. If it clicks, that's a good sign. The next step would be to put a continuity tester across the contacts, again going by what the schematic appears to be switching. This almost takes an electronic genius to figure out, and the margin for error is just about 0. Keep in mind that if you screw up, and accidently put 12 volts across the contacts, you'll fry a good relay. ou: Personally, I'd wait until things come together and you can do an "in circuit" test.......but if you try testing it out of circuit, I strongly suggest using a 1 amp fuse in line with the ground just in case. :idea2:
Thanks for the reply. It was fairly easy to test the other headlight relay that was mounted near the front of the passenger side fender, as you could pry back the tabs and actually remove the outer cover. Then I just looked at where all the wires went inside and checked them for continuity, and also looked to make sure the contacts were not burned up. That one checked out fine. This one has the ground lug soldered to the outer cover, so taking it off to look inside would be difficult, but not necessarily impossible. I can run the continuity test with an ohmeter, but there is no way to visually check the contacts without taking it apart. I guess actually testing it on the car after I hook everthing back up may be my only option. Oh well, practice makes perfect I guess. Later, Randy
