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Dome Lights and Door Triggers.


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howie ll 
Pot Metal - Posts: 16,466
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Posted: April 20, 2014 at 8:54 AM / IP Logged Link to Post Post Reply Quote howie ll
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.
the12volt 
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Posted: April 20, 2014 at 9:05 AM / IP Logged Link to Post Post Reply Quote the12volt
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.
Dome Lights and Door Triggers. - Last Post -- posted image. the12volt • Support the12volt.com
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: April 20, 2014 at 9:06 AM / IP Logged Link to Post Post Reply Quote howie ll
Thanks.
prince504 
Copper - Posts: 108
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Posted: May 26, 2016 at 11:53 PM / IP Logged Link to Post Post Reply Quote prince504
did you mean, "you can connect directly to the DOOR trigger and you don't need dome supervision because the vehicle already has it?"
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: May 27, 2016 at 4:40 PM / IP Logged Link to Post Post Reply Quote howie ll
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).
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: May 27, 2016 at 4:42 PM / IP Logged Link to Post Post Reply Quote howie ll
And yes, you don't need dome supervision because by my definition above the vehicle already has it.
prince504 
Copper - Posts: 108
Copper spacespace
Joined: December 25, 2015
Location: United States
Posted: May 27, 2016 at 5:00 PM / IP Logged Link to Post Post Reply Quote prince504
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...
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: May 28, 2016 at 4:13 AM / IP Logged Link to Post Post Reply Quote howie ll
That depends on the vehicle and your experience.

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