dome light output to headlights
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=114596
Printed Date: May 17, 2025 at 12:53 PM
Topic: dome light output to headlights
Posted By: ggg05a
Subject: dome light output to headlights
Date Posted: June 21, 2009 at 10:03 AM
Hey All:
I'm putting in a 5701v in my 08 Fusion sometime next week. With the OEM keyless entry system, when you unlock the car, it throws on the headlights (lowbeams) until you start the car, or re-lock the car.
I want to keep this feature with the 5701v and figured that I could just hookup the Domelight output to the headlight wire. Other than having to disable the fade to nothing feature I think this should work just fine. Opinions? Why wouldn't this work?
Thanks!
--Garrett
Replies:
Posted By: t&t tech
Date Posted: June 21, 2009 at 11:53 AM
it will work, i can't remember if the relays for the domelight supervision are built in on that unit, if they are, off you go, if not, then your application would require a relay.
Posted By: i am an idiot
Date Posted: June 21, 2009 at 12:14 PM
Notice that the polarity of this wire in negative. If you apply positive voltage to the wire, it will take out the switch. The switch can be repaired, it is just a pain to take the switch apart and find the burnt trace. | Headlights-Lo | | BLUE/WHITE | | (-) | | HEADLIGHT SWITCH |
Posted By: JWorm
Date Posted: June 21, 2009 at 12:55 PM
The BLACK/ white domelight output wire on the 5701 provides a (-) output. You can connect it directly to the blue/white headlight wire of the car. If the headlight wire of the car is high current (unlikely) you will need to use a relay to boost the output.
Posted By: ggg05a
Date Posted: June 21, 2009 at 1:50 PM
JWorm] wrote:
The BLACK/ white domelight output wire on the 5701 provides a (-) output. You can connect it directly to the blue/white headlight wire of the car. If the headlight wire of the car is high current (unlikely) you will need to use a relay to boost the output.
Yeah, that sounds like a plan! I don't think it is high current. If I remember correctly I think is 16 AGU.
Thanks for the input!
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