$16 Under Dash Light Conversion
- Thread starter Carvblaster
- Start date
This is a great thread and almost exactly what I need. All of my exterior lights have been converted to LEDs. Now I need to do the interior lights, but I am having trouble finding quantities and I want to make sure I am purchasing the correct bulb type. As far as I can tell I will need both T5 and T10 connections.
According to the owner's manual here are the OEM bulbs and quantities where they were actually stated.
Automatic Transmission Indicator bulb 658
Under Dash bulb 906 quantity (1)
Heater Control bulb 194 quantity (2)
Instrument Telltale bulb 74
Instrument Illumination bulb 103
Sound bar bulb 912
I think the sound bar bulbs are the equivalent of the dome light and I think that I want to keep that one colored white. All of the others I would like to change to blue LED.
I am pretty sure the Auto/Trans Indicator is the bulb in the cosole for the shifter. Heater Control is behind the heater knobs, I think. I am not sure if the Telltale bulbs can be or should be changed to another color because I think those are the warning lights for low fuel, check engine and...
Any guidance here will be most appreciated. I have looked at Amazon, superbrightleds, lamptech, quadratec, 4wd and a ton of other sites with very few answers.
According to the owner's manual here are the OEM bulbs and quantities where they were actually stated.
Automatic Transmission Indicator bulb 658
Under Dash bulb 906 quantity (1)
Heater Control bulb 194 quantity (2)
Instrument Telltale bulb 74
Instrument Illumination bulb 103
Sound bar bulb 912
I think the sound bar bulbs are the equivalent of the dome light and I think that I want to keep that one colored white. All of the others I would like to change to blue LED.
I am pretty sure the Auto/Trans Indicator is the bulb in the cosole for the shifter. Heater Control is behind the heater knobs, I think. I am not sure if the Telltale bulbs can be or should be changed to another color because I think those are the warning lights for low fuel, check engine and...
Any guidance here will be most appreciated. I have looked at Amazon, superbrightleds, lamptech, quadratec, 4wd and a ton of other sites with very few answers.
MountaineerTom
LJ Enthusiast, Retired USAF Weapons Loader
Supporting Member
Ride of the Month Winner
I replaced all this in mine to cool white bulbs. I don’t have the part numbers off hand but can get them for you tonight or tomorrow when I get home.
You might not want to change the high beam bulb to LED. I tried a few different kinds and even the lleast bright LED I could find was blindingly bright in there. I ended up going back to the original bulb so I could keep my retinas. LOL
For the underhood light, this one has worked well for me in the OEM light housing.
https://www.amazon.com/gp/product/B078HS5H7Q/?tag=wranglerorg-20
The twisted end pieces make the light shine down toward an rhe engine instead of off to the side.
That is a really good point. I guess that I need to find bulbs that aren't as bright and it would be great if they were dimmable like the ones in the instrument cluster. I'd like to keep my retinas too. I knew there was a reason I joined this forum. It's good for my Jeep and my health.
MountaineerTom
LJ Enthusiast, Retired USAF Weapons Loader
Supporting Member
Ride of the Month Winner
Here's what I got from Superbrightleds.com
- Cluster Lights - 74-xHP3 (5 each)
- Climate Controls - NEO4-xHP (3 each)
- O/D Off switch (if you have an automatic) - The same NEO4-xHP as climate controls (1 each)
- The orange indicator light for the O/D Off switch - NEO3-xHP (1 each)
- Auto Trans shifter plate lighting - I don't remember exactly which of these I used, but it was either 194-x4-32 or this one, 194-xHP (1 each)
- Footwell lights - 921-x12 (2 each)
- Sound Pod Dome Lights - 4410-x9 (2 each)
As far as the high beam indicator, I tried 74-xHP and it was very bright, then I tried 74-x and it was still too bright for me, so I put the stock bulb back in.
All the "x"'s in the part numbers will change based on what color you choose when you order.
I ordered 1 or 2 extras of them just in case one didn't work. My cluster, climate controls, transmission shifter and O/D Off switch all dimmed with the control on the turn signal stalk. You may know already, but put them in, test the light. If it doesn't light up, flip it around because the polarity may have been backwards.
It looks like superbrightleds.com has discontinued some of these now though, but they list a suggested replacement on their page.
Thanks a bunch. I will try superbrightleds with the information.ation you gave me.
I think I got everything I need and ordered a couple extras. Thanks again for your help.
Cole
TJ Enthusiast
I just upgraded all my exterior lights to LED's (except the side markers) and everything went smoothly until the driver's side parking light. When I put that LED light in it all went haywire. Of note - I don't have the LED relay but I will be purchasing today, instead I cut the circuit in the existing relay as shown in other posts and Stu's site.
Anyway, after I put the driver's side LED in the blinkers would work, at a normal speed, with my lights off, but the entire dash would turn on and off with the blinkers. When I turned on my lights the blinkers wouldn't work at all and the left blinkers light on the dash would stay light.
Any thoughts? Comments? Suggestions? I guess I didn't try to flip around the LED, is it possible I had it plugged in so the polarities were reversed? Not sure if that matters with LED's..
Anyway, after I put the driver's side LED in the blinkers would work, at a normal speed, with my lights off, but the entire dash would turn on and off with the blinkers. When I turned on my lights the blinkers wouldn't work at all and the left blinkers light on the dash would stay light.
Any thoughts? Comments? Suggestions? I guess I didn't try to flip around the LED, is it possible I had it plugged in so the polarities were reversed? Not sure if that matters with LED's..
What year is your TJ? In my 2001, I replaced my under dash lights and overhead dome light with LED's and they were direct plug ins, no need cut wires or convert anything. The under the dash LED's are large and I cannot replace the globe light covers, which is a bonus IMO. The dome light was perfect, and I was able to still use the clear plastic cover.
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OP
Weird question and sorry if this is a de-rail. Does anyone know how many volts I should be seeing at the plug for the Automatic Transmission Indicator bulb 658? The light is very dim in my 06 TJ and I want to be sure it's a problem with the bulb before I order a LED replacement online. I guess it's another reason to be wary of automatics.
If you are looking to hook up lights in the footwells to come on with the daytime running lights and headlights, where did you guys wire into for this?
This seems like a bad idea as it will reduce the contrast in lighting between inside and out making it hard to safely see objects. It would be akin to driving around with the dome light on.
Red lighting in foot wells would NOT effect contrast. It is used by professional drivers everyday. Not sure how this compares with a dome light? I dont remember asking about that.
Well certianly a red light does change the equation
No you did not ask about a dome light however its called being analogous.
yesk1978
New Member
I changed all of my instrument panel bulbs to blue a few years ago. Unfortunately, my high beam indicator light blended in with the instrument panel, causing me to forget that the high beams were on. I changed that indicator to red a couple of weeks ago in my 2006. Here is the link for that specific blue size for those interested.
High Beam Indicator Bulb
I haven't had a problem with the high beam indicator being too bright when driving.
High Beam Indicator Bulb
I haven't had a problem with the high beam indicator being too bright when driving.
Nic Zuraw
New Member
Just want to say THANK YOU to the OP and others who posted on this topic. Swapped mine out this past weekend and everything went flawlessly. SUPER easy to wire up connections and get a whole new look into my TJ to really make it mine.