Starter Kill, Diode or No Diode?

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Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=63634
Printed Date: May 14, 2025 at 1:28 PM

Topic: Starter Kill, Diode or No Diode?

Posted By: just1
Subject: Starter Kill, Diode or No Diode?
Date Posted: October 02, 2005 at 11:10 AM

I'm installing a Phoenix Digital alarm (PD-144) in a 1995 Toyota T100.

There is not a diode already attached to the starter kill relay that came with the alarm.

For this application...Do I need to use a diode? or Can I go without the diode?

Thanks,

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just1

Replies:

Posted By: boulderguy
Date Posted: October 02, 2005 at 11:35 AM

Just a little more information please...

Posted By: just1
Date Posted: October 02, 2005 at 11:44 AM

Thanks for the reply.

Not sure what additional info you are looking for...something specific?

The alarm is real basic. The relay came pre-wired, but no diode.

The only thing on the truck that has power assist is the power steering. Eveything else is manual.

Thanks again,

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just1

Posted By: boulderguy
Date Posted: October 02, 2005 at 11:48 AM

Without knowing the specific setup & wiring of the relay plus how it integrates into the starter there's no way to analyze the rigging & determine if you need a diode. Off the top of my head I'd say if it didn't come with one pre-wired & you're doing a standard setup you're probably fine. There's no real reason why you'd need one.

Posted By: just1
Date Posted: October 02, 2005 at 12:26 PM

Here is the diagram of the relay. Hope this helps.
posted_image

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just1

Posted By: boulderguy
Date Posted: October 02, 2005 at 3:50 PM

No diode necessary.

Posted By: just1
Date Posted: October 02, 2005 at 4:42 PM

Your help is greatly appreciated.

Thank you.

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just1

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