2nd accessory relay

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=124475
Printed Date: May 15, 2025 at 8:53 AM

Topic: 2nd accessory relay

Posted By: monty862
Subject: 2nd accessory relay
Date Posted: November 15, 2010 at 10:41 PM

I have to add a relay for a 2nd accessory input on my remote start installation. My question is, should a diode be used across the relay's coil in this application?

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Replies:

Posted By: howie ll
Date Posted: November 16, 2010 at 3:15 AM

Yes definitely, I treat them as a "must do" to protect the circuit that's feeding the coil.

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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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