Dome Lights and Door Triggers.
Printed From: the12volt.com
Forum Name: Car Security and Convenience - Hot Topics
Forum Discription: Stickied topics from our Car Security and Convenience forum. Car Security and Convenience FAQs. Read First!
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=136501
Printed Date: April 25, 2024 at 9:54 AM
Topic: Dome Lights and Door Triggers.
Posted By: howie ll
Subject: Dome Lights and Door Triggers.
Date Posted: April 20, 2014 at 8:54 AM
This subject keeps coming up at least once a month so let us sort it out once and for all.
Certain vehicles such as Hondas, and Toyotas are listed as having up to 5 separate, diode blocked door triggers and dome light supervision.
A simple way around this is as follows.
If your vehicle has a dome light delay after closing the doors, say up to a minute but as soon as the doors are locked it either extinguishes immediately or within 2-4 seconds.
Then you can connect directly to the dome trigger and you don't need dome supervision because the vehicle already has it.
This applies AFIK to all BMW, Honda, Toyota and possibly F series Fords.
A simple test to find out, see above.
Apologies to Mods but I appear unable to post anymore on hot topics.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Replies:
Posted By: the12volt
Date Posted: April 20, 2014 at 9:05 AM
Topic has been moved. No one can create topics in the hot topics forum, but everyone can reply to topics in the hot topics forum if the topic is not closed/locked. -------------  the12volt • Support the12volt.com
Posted By: howie ll
Date Posted: April 20, 2014 at 9:06 AM
Thanks.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: prince504
Date Posted: May 26, 2016 at 11:53 PM
did you mean, "you can connect directly to the DOOR trigger and you don't need dome supervision because the vehicle already has it?"
Posted By: howie ll
Date Posted: May 27, 2016 at 4:40 PM
No go to either the NEG (most vehicles) or POS which toggles on when a door is opened at the DOME LIGHT (or it's feed at the BCM).
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: howie ll
Date Posted: May 27, 2016 at 4:42 PM
And yes, you don't need dome supervision because by my definition above the vehicle already has it.
-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: prince504
Date Posted: May 27, 2016 at 5:00 PM
Thanks for the clarification. So by you explanation in the first post, if the vehicle didn't have fading lights as described, we would NOT directly connect to the dome trigger then?
So for example, on a Chevy or Ford Fusion, what would you normally do?
I personally have never bothered w/ dome supervision...
Posted By: howie ll
Date Posted: May 28, 2016 at 4:13 AM
That depends on the vehicle and your experience.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
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