I have about a dozen relays laying around and I'd like to figure out which ones work. Is there a way I can test these by applying a trigger voltage or something? Search didn't turn up much, maybe I'm searching the wrong terms.
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- Josh
1990 325is
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It's easy to tell if a relay is bad, but its much tougher to tell if it's good...
For most E30 relays, grab a fresh 9v and stick it on pins 85, and 86. That's usually enough to get them to trigger.
That tells you nothing about the condition of the relay contacts however, and that is usually what goes wrong. An ohmmeter can give a little better idea across 30 and 87 with the relay triggered, but is by no means a perfect test either as that has to carry 30 amps in some instances.-Dave
2003 Lincoln Towncar | 1992 BMW 325iC | 1968 Cadillac Deville
Need some help figuring out the ETM? -
Throw it in a vise and squeeze.
If it crushes, its bad.
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