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Interior lighting?

mandrewbot3k
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dgstarr63 Enthusiast

dgstarr63

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I purchased this product from Amazon Prime for $12.99: Auto Car Ceiling Roof Lights Dual-color Fixture with Universal USB.  It is a rechargeable LED round dome lamp. Works great accept that the double stick tape would not stay on my cloth headliner. I then installed a heavy duty 3M tape from Home Depot (with red backing). So far it has not come off. I would recommend these products.

  • 3 weeks later...
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econometrics
econometrics

The interior lights really are terrible in the T1. From the lack of vanity lights to the very limited coverage of the LED overhead lights. GM missed it here. 

Smoothbassman
Smoothbassman

Yes.    I installed the OPT7 floor lighting kit.        The lights turn white when you open the door.   Easy 60 minute install.     

2020 SLT owner
2020 SLT owner

Thanks for the lead on the Oznium 11 mm LED light.  I do not have a skylight, sliding window or Homelink, so there was more places I could put the lights. First thing is you need a long T10 driver t

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mandrewbot3k Enthusiast

mandrewbot3k

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On 2/16/2021 at 3:00 PM, kodiakdenali said:

Not sure if the dome behaves differently on different trims but on mine the BCM output does not turn on if you turn on the map lights individually, but there is also a manual dome light button on the overhead console, that one turns on all of the map lights front and back, it does turn on the BCM output which activates the extra lights. I like it very much this way. if I really want light I can push that button, but if I just need to see but don't want super bright light I can push the individual lights which turn on that one light only. the passenger can still turn on their light to see something without turning all of the interior lights on which would be way too bright at night time with the addons...it actually works great!

 

On 2/16/2021 at 2:52 PM, mandrewbot3k said:

 

 

image.thumb.png.b766ed2f2f2f6b87cce2056b3aa566ef.png

 

 

Just wanted to follow up that the DPDT relay with a 100uF capacitor worked much better. There is less of a delay when switching from door assist mode to regular operation. Works well when applying the dome light manually too. It's a great upgrade.

  • 3 months later...
todd308 Enthusiast

todd308

Posted
Posted (edited)

One interesting issue I had messing around with these mods is that when I did the overhead console mod, I had no problems just tapping the gray interior lamp control wire, running a ground and that was fine. 

 

As a second mod I was going to add footwell lights, but BCM X1 pin 23 didn't seem to have any power when I checked it with a working LED I use for testing, even when the dome lights were on.   Pretty sure I had the right module it was the only one with gray wires in pins 21 and 23, and if unplugged it killed the interior lights.    In the end I just wired them into one of my upfitter switches.   

 

Using a meter it does look like the voltage increases on the 23 pin when the dome lights are on, but it's a tiny amount like 0.1v that seems nowhere near enough to trigger a 12v relay.  Is anyone actually powering lights off this 23 pin wire, like in the overhead console, or only using it to trigger a relay?   

 

 

Edited by todd308
  • 5 months later...
tom orosz New Member

tom orosz

Posted
Posted
On 12/15/2019 at 11:18 PM, mandrewbot3k said:

 

Has anyone added any interior lighting?

 

It’s awfully dark inside the cab when I’m looking for stuff at night. Don’t feel like I should need a flashlight for my truck.

 

I feel like every other tick I’ve had had nice bright lights on the door near the kicker panel and could actually illuminate the cab.

 

Just curious if anyone’s added anything like led lighting below the dash or anything?

 

 

Sent from my iPhone using Tapatalk

 

 

  • 4 months later...
Bikerjon Enthusiast

Bikerjon

Posted
Posted

I have been browsing this forum for about two months. I have finally just joined. So much great information and knowledge. I want to thank kodiakdenali, Arboc, Rook126 and 2020 SLT owner for your knowledge and experience for the interior lighting install. I have just completed the 11mm Oznium LED install in my TB and it has made a huge difference! I will try to start posting more regularly now that I am a member. Again thank you. 

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  • 2 years later...
  • 3 months later...
escinct New Member

escinct

Posted
Posted

I have a 2024 1500 trail boss with base interior. I just tried the mod with the bolt lights, but neither gray wire in the right plug on the ceiling console gives any voltage when I open the doors. I don't understand how this can be possible because unplugging the right plug makes the dome lights go out, so I know it has to come in that right plug

Bikerjon Enthusiast

Bikerjon

Posted
Posted
47 minutes ago, escinct said:

I have a 2024 1500 trail boss with base interior. I just tried the mod with the bolt lights, but neither gray wire in the right plug on the ceiling console gives any voltage when I open the doors. I don't understand how this can be possible because unplugging the right plug makes the dome lights go out, so I know it has to come in that right plug

Welcome to the forum. You are on the right track. It is one of the grey wires in the right plug for the overhead console. You are probably not getting a good connection to the tiny connectors in that plug. Not sure what kind of test light or multi meter probes you are using but try this. Open up a paper clip and back probe the connectors for the grey wires. What I mean is probe the connector from the back side or the side that the wire enters using the paper clip as a probe and connect your test light or multi meter to the paper clip to get a good connection. Remember that the dome light circuit will time out so when you have your paper clip, test light or multi meter  circuit complete open and close the door and you will see the gray wire energize and turn off when the door is closed. 

Let us know if that worked for you.

escinct New Member

escinct

Posted
Posted

Thank you for getting back to me. I took your advice and used a paper clip from the back of the plug. Made sure that I had good ground and, of course, made sure these new lights worked when plugged directly to the battery. I still find that neither gray wire has power when I open the doors. But I did find that the brown wire with the blue tracer did. I tested them all and a couple of the other wires had low voltage coming through when you open the doors. The brown wire was the only one that was exactly what I needed for dome lights. Not sure why this would be different on my truck, but it is.  It was in the third slot from the bottom right in the plug when plugged in.

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20250111_142424.jpg

Bikerjon Enthusiast

Bikerjon

Posted
Posted
2 hours ago, escinct said:

Thank you for getting back to me. I took your advice and used a paper clip from the back of the plug. Made sure that I had good ground and, of course, made sure these new lights worked when plugged directly to the battery. I still find that neither gray wire has power when I open the doors. But I did find that the brown wire with the blue tracer did. I tested them all and a couple of the other wires had low voltage coming through when you open the doors. The brown wire was the only one that was exactly what I needed for dome lights. Not sure why this would be different on my truck, but it is.  It was in the third slot from the bottom right in the plug when plugged in.

20250111_135404.jpg

20250111_142424.jpg

Giad you got it working. I have a 2025 Trail Boss that I am going to do this mod to. I will be checking on that brown w/blue wire that you mention.

escinct New Member

escinct

Posted
Posted

My tips are: Tap the wire with a red t-tap splice, the blue ones are probably too big.

Buy the cool white bolt lights, they match the other lights exactly. 

You don't need to disassemble the black backing off the ceiling console like the OP did. Just remove the part you'll be drilling and make sure you drill directly centered on those tabs sticking out of the back of that piece.

20241223_151437.jpg

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  • 3 weeks later...
bbqjoe Enthusiast

bbqjoe

Posted
Posted

I am getting ready to add RGBW LED modules that I have leftover from another project to our under the dash and rear seats.  I want the white to come on with the doors and the blue with the running lights, but modules and tape light all use a common positive wire and switch the negative to turn on the different colors.  A friend that knows electronics suggested I use a Low-side transistor off of my +12 trigger to control the LED as I want them to dim up/down with the dome light.  I am looking at about 8w at 12V, will that cause issues with the BCM?  Also is the BCM in my 24 Sierra AT4 closer to the gas or the brake peddle? Just not enough space to get my big head under there to look.

WestTXborder New Member

WestTXborder

Posted
Posted
On 1/11/2025 at 12:59 PM, escinct said:

Thank you for getting back to me. I took your advice and used a paper clip from the back of the plug. Made sure that I had good ground and, of course, made sure these new lights worked when plugged directly to the battery. I still find that neither gray wire has power when I open the doors. But I did find that the brown wire with the blue tracer did. I tested them all and a couple of the other wires had low voltage coming through when you open the doors. The brown wire was the only one that was exactly what I needed for dome lights. Not sure why this would be different on my truck, but it is.  It was in the third slot from the bottom right in the plug when plugged in.

20250111_135404.jpg.

 

I found the schematic for the roof connector...

Snap4.jpg

  • 4 weeks later...

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