lost on dome lights

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=142320
Printed Date: May 12, 2025 at 5:31 AM

Topic: lost on dome lights

Posted By: dports70
Subject: lost on dome lights
Date Posted: December 28, 2016 at 4:35 PM

2008 f150 w/ keyless entry, I'm trying to activate the dome light delay when unlocking truck. I've installed a compustart 800 everything else is working flawless, remote start, door lock, and unlock, just stuck with lights.

my remote start doesn't have a courtesy light wire so I'm trying to trigger it off the door unlock with a relay. i know that black / blue is dome light (+) and ORANGE / lt green is (-) , i have wired it the following way

posted_image

#86 to unlock trigger.
#30 to BLACK/ blue

no luck, ham able to activate the light through the ORANGE / lt green with relay but it only stays on the 1 sec the relay pulses

any help would greatly be appreciated

Replies:

Posted By: chev104275
Date Posted: December 28, 2016 at 5:19 PM

I would think you would be better off using something like a dei 528T to trigger the dome lights off the unlock wire of the remote start

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If i Can't Install it I Don't need it Joe

Posted By: prince504
Date Posted: December 28, 2016 at 5:32 PM

chev104275 wrote:

I would think you would be better off using something like a dei 528T to trigger the dome lights off the unlock wire of the remote start

@chev104275 are you familiar with the DEI 535T window roll up module? Ever installed one?

Posted By: dports70
Date Posted: December 28, 2016 at 6:10 PM

chev104275 wrote:

I would think you would be better off using something like a dei 528T to trigger the dome lights off the unlock wire of the remote start

would you be so kind as to share how this would be wired up?

Posted By: chev104275
Date Posted: December 28, 2016 at 8:01 PM

Yellow = Ground
Brown = To dome light - trigger wire in vehicle
Black w/stripe = To unlock output - from alarm
Black = Ground
Red = +12V Fused supply

I believe your dome light wire is ground triggered

DOOR TRIGGER     BLACK / YELLOW (-)     A DRIVERS SIDE KICK PANEL
DOMELIGHT SUPERVISION     USE DOOR TRIGGER

Test to confirm

I know the older 04 -07 trucks are positive triggered so it could depend on build date   if you find it is positive trigger then you would put the yellow to 12v

DOMELIGHT SUPERVISION     BLACK/ LIGHT BLUE (+)     IN DRIVERS KICK PANEL, GRAY Plug, Pin 6

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If i Can't Install it    I Don't need it   Joe

Posted By: dports70
Date Posted: December 28, 2016 at 8:05 PM

chev104275 wrote:

Yellow = Ground
Brown = To dome light - trigger wire in vehicle
Black w/stripe = To unlock output - from alarm
Black = Ground
Red = +12V Fused supply

I believe your dome light wire is ground triggered

DOOR TRIGGER BLACK / YELLOW (-) A DRIVERS SIDE KICK PANEL
DOMELIGHT SUPERVISION USE DOOR TRIGGER

Test to confirm

yes the ORANGE / lt green is (-) and triggers light on, thank you for the awesome responces

Posted By: chev104275
Date Posted: December 28, 2016 at 8:06 PM

No problem good luck

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If i Can't Install it I Don't need it Joe

Posted By: brownsfan1
Date Posted: December 30, 2016 at 7:16 AM

I'm pretty sure that compustar has a dome supervision output. It will be a negative output and you will need a relay to trigger it.

Posted By: dports70
Date Posted: December 30, 2016 at 7:59 AM

The 800 model does not, unless it's not labeled

Posted By: brownsfan1
Date Posted: December 31, 2016 at 11:13 PM

You are right. I just looked at one I had in stock. I guess it's not a popular option. Because I looked at the Python 4105 I have and they don't have the output either. You have to go to a higher model

Posted By: dports70
Date Posted: January 01, 2017 at 11:20 AM

all good, how we learn new things