Relay or Diode For dome Light

Printed From: the12volt.com
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=42418
Printed Date: May 19, 2025 at 6:32 PM

Topic: Relay or Diode For dome Light

Posted By: flord
Subject: Relay or Diode For dome Light
Date Posted: November 06, 2004 at 11:41 PM

I have a 2001 F-250 Super duty with factory keyless entry. The previous owner had a Ultra Start U-1500 installed, no dome light supervision (older model). I would like to trigger the factory dome light supervision (stays on for about 30 sec) with the ultra start fob. I think I have read that you can run a diode off the negative door trigger back to a module? A pulse relay timer is also another possibility but I wanted to check it out with everyone here.

Jim

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Thanks Jim

Replies:

Posted By: genehewett
Date Posted: November 08, 2004 at 12:58 AM

All my info says to use door trigger. This means if your system dont have a domelight output you will have to use some type of pulse timer and maybe a spdt relay also. Let me know if you got any questions.

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