negative to positive
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=138946
Printed Date: April 28, 2024 at 9:36 PM
Topic: negative to positive
Posted By: ccaudio
Subject: negative to positive
Date Posted: May 09, 2015 at 10:06 AM
I am installing a remote start on a 94 chevy g20. Can I use a relay that only has pins. 86. 30. 85. And 87a. To convert a negative to positive for the locks. The relays I have don't have pin 87.
Replies:
Posted By: howie ll
Date Posted: May 09, 2015 at 11:11 AM
You need a 4 or 5 pin relay with 87. 87a denotes NC or normally closed,i.e. it's connected to 30 until the relay is energised, that's the opposite of what you want.
DEI 451 double relay module is what you want, if you're using DEI product it plugs straight in.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: icearrow6
Date Posted: May 21, 2015 at 12:29 PM
Use one for each direction (lock/unlock)
https://www.the12volt.com/relays/relaydiagram8.html
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Posted By: howie ll
Date Posted: May 21, 2015 at 12:31 PM
IceArrow....oops! Yes 2 relays though I did specify a single 451.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
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