Dome light Question

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=42408
Printed Date: July 13, 2025 at 11:08 PM

Topic: Dome light Question

Posted By: flord
Subject: Dome light Question
Date Posted: November 06, 2004 at 10:17 PM

I have a 2001 F-250 Superduty 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 possability but I wanted to check it out with everyone here.

Jim

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Thanks Jim

Replies:

Posted By: daniel2002p
Date Posted: November 07, 2004 at 9:59 AM

Honestly, not sure if that is possible, you would have to get a timed relay for that.

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2005 Toyota Corolla S
1.8L VVT-i I-4
Always double check your wires with a DMM!!!
Do Not Use A Test Light!!!
MECP Certified Installer!
Best Buy 665 - IN IT TO WIN IT! TEAM MOBLE!

Posted By: flord
Date Posted: November 07, 2004 at 11:31 AM

Thanks, daniel2002p.

Anyone sitting back with a sunday coffee and an idea please jump in. It sure is hard typing wiyh a two year old jumping all over you.

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Thanks Jim

Posted By: hagmanti
Date Posted: November 08, 2004 at 1:37 AM

Have you looked at:

https://www.the12volt.com/relays/page4.asp

Look at the diagram for negative door triggers. If your alarm has an output, hook that up where the diagram says negative door trigger. If it doesn't, use the lock wire of your alarm (I think I remember that your car has negative lock wires), appropriate diode-isolated...

Me

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