pwr door lock relay problem?

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Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=71137
Printed Date: July 07, 2025 at 5:21 AM

Topic: pwr door lock relay problem?

Posted By: azcat
Subject: pwr door lock relay problem?
Date Posted: January 19, 2006 at 10:01 PM

I hooked up my actuator and relays as directed by the “Actuators / Reverse Polarity” part of the site. The relay won’t click and it immediately blows the inline 20a fuse when I reconnect the battery. If I remove the ground from 87a and replace the fuse I can hear the relay work/click and the fuse doesn’t blow. But right when I reconnect the ground it blows. I’m not new to this and all my other relays work flawlessly. What could be the problem?
THANKS,
Joe

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Replies:

Posted By: azcat
Date Posted: January 19, 2006 at 10:33 PM

BTW, not that it matters much but it’s for a 1967 Mercury Cougar…. so I’m running my own new wiring. I just can’t figure out why the ground blows the fuse when it works fine with the ground disconnected. Makes no sense to me. I have been looking over my work over and over again and I just don’t see any reason for my problem.
Thanks again,
Joe

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