DIY MOD: Ambient lighting from map light

Ambient LED from map light

Oh and you guys are waaaaaaaay overthinking the resistor situation. I saw pictures with multiple resistors/ shorted across the LED leads? Yikes. Watch out for excessive current draw and LOTS of heat if you wire them like that....

I used a single 510ohm resistor on the cathode (-) leg of each LED. I wired both LEDs in parallel to the 12-14v illumination circuit. Simple. No mysterious burning smells or fires.

Going to try this mod/patch today with a single red 2v 20mA LED and 580ohm resistor. Works well on my test circuit! Hopefully I can correctly identify the lead + ground wires in the map light assembly ... :shocked:

Any feedback from the tribe on how their mods are holding up at this point?
 
I forgot about this diy.

I drove my truck for the first time in months on a 3000 mile road trip for 19 days. I miss this has guzzling pig.

I got used to the ambient lighting in my Lexus and got into this thing again and realized I love this mod. Originally I felt it was too bright, after driving my Lexus for the last 59500 miles out of 60000 in the last year, only 200 on this truck until this road trip, now it's perfect. Turns out it's about the same brightness as my Lexus and my wife's GTI.

It really helps driving at 3am cruising at 75mph looking for something and everyone is fast asleep.
 
ughhh

Well, I tried getting the map light assembly down and it looks like I broke the plastic tabs securing the face of the assembly to the housing of the sunglasses case/inner lid of the assembly. Not sure there is a good step forward at this point, except ripping the whole face off, which would probably result in a totally broken map light assembly. Now the windshield edge of the thing sags down and looks like shit. Wish that didn't happen.
 
So I went ahead and did this and ran into problems. After testing the map light wires with a voltmeter, I tapped into the 12v and ground wire per the instructions. Using 1/2 watt resistors of 470 and 100 ohms, I connected them as detailed in the drawing to a 2.1v amber led. Yes, I recalculated for the 2.1v in the link the OP sent. Hooked everything up, and nothing happened. I thought maybe the light was too dim but there is literally no light whatsoever. I tried another 12v circuit and still got nothing.

Are 1/2 watt resistors acceptable, or should I use a different wattage like 1/4 or 1 watt? Also, should i use larger/smaller sized resistors? OP said that it needs to be 1/3 of the largest one.

This is a mod that I am really hoping to accomplish, and appreciate people's input. Thanks in advance

My guess is that you have the positive and negative leads reversed. I did this the first time I tested my circuit as I was incorrectly assuming the long lead coming off the LED was negative.

Sorry this is 3 years later..... lol I am doing this mod to my '04 4runner currently (along with changing the entire interior to black)
 
Little late to the party here, but just got a '03 V8 Limited a few weeks ago and I hate how Toyota missed the boat in lighting the front portion of the vehicle at night when you open the doors. I mean, really? At my age, that whole front area of the vehicle at night is like a black hole - I have to pull over just to find something rather than risk having a wreck due to no ambient lighting at all in the driver's area. So glad I've been lurking this forum since I started researching for a vehicle to replace my old '77 Land Cruiser I sold back in November. That was my "work truck" and served it's purpose well since I work construction. Needed something with a really tough driveline, very high offroad capability and at least some comfort at my age and the number of injuries in the past during my career. The old Cruiser served me well and I wanted to restore it, but once that is done there is no point in taking it to work on a daily basis and tearing up such an expensive investment.

So, I did the main portion of the mod as I saw no real need for the addition of the switch for now. My '14 Dodge has a "moonlight" ambient light in the overhead console and I love that - same as folks here with other vehicles. In doing the main door switched mod for the map lights to function with the doors it created an issue when I tapped into the A-pillar wiring. When either map light is switched on at night when driving - it lights up the whole interior now. Not a surprise since grounding at those map lights will function the same as the switch in the main dome/cargo lamps.

So here's the question - if I get a pair of diodes in the 1N4004 type, will those wired into the ground path of the dome light mod prevent reverse flow of the switched ground from those map lights? I want the map lights to function independently with their own switches, but still work to light the interior when any door is opened as the mod is intended to function.

Part II -

For the ambient light mod like the Lexus and others - I found in a search and ordered some housings and 5mm led's in orange/amber color that is pre-wired with the correct resistor for 10-15v DC use here -

5mm 12v Pre-Wired LED Orange Amber Ultra Bright 15,000 mcd

They also carry these bezels -

5mm LED Bezel - Chrome

Not sure if I'll use the bezel on the ambient light mod, but may use some in other locations since I'm old and half blind. I cannot use any sort of blue light due to an eye condition, so I chose to mimic the original orange/amber color that Toyota used. I wasn't too keen on using resistors to get the voltage down correctly since it can create heat - using the pre-wired leds that are designed to work at the 10v-15v range just seemed to make more sense to me.

Anyhow - love the mods on this forum and for the most part I'm really loving this old, half abused T4R, I just wish the previous owner would have followed through on that stupid dash panel recall offer. That, and actually spend what little money it would have cost to have a few repairs done instead of ignoring them - such as a torn CV boot, and, not kidding - one tie rod end that was almost ready to fall apart.

Sarge
 
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Definitely be sure to update us on those two options, I just installed LED's in the interior for the rest of the plug and play stuff and was thinking of doing something like this since the old Accord I had had something similar. That being said I might go shop the Junkyard to find mine to retrofit.

I wonder if those might end up being too bright at 15,000mcd. Funny thing is Steve (the OP) is actually a friend of mine through the Volvo community and I forgot that he owned a 4Runner which I'm now noticing how many mods/threads he started over here as he chronicled the mods on his 4Runner.
[MENTION=299465]Sarge[/MENTION] - Noticed your location is in Ohio/Illinois, what part? I grew up north of Chicago and live in Cincinnati so I've been in both of those two locations for quite some time!
 
I will absolutely follow up once it's done - we're going into another cold period and I have no garage here, plus a rotten time with Raynaud's and fighting to keep my digits. Wish they would find a cure, but that is another subject, lol.

I live in Ohio, Illinois - it is a very small (pop - 450) town south of Dixon and north of Princeton. Basically, halfway between I-80 and I-88 interstates.

This was my baby - 1977 Toyota Land Cruiser, FJ40LVKCJA model short wheelbase. Still had its stock inline six that performed flawlessly and despite being 40+yrs old was the most reliable thing I've ever owned. So far, this T4R has a long way to go before I trust it due to it being far more complicated in the way it is built. She went to a younger owner that loves vintage trucks and has wanted one for years - he promises to restore it fully and even drive it some, hope he follows through.

I was going to post a pic of the old girl, but evidently haven't been here long enough or posted enough yet. Instead, I'll try a hyperlink to pics from the sale ad on IH8MUD -
https://forum.ih8mud.com/attachments/20180617_100437-jpg.1726172/

Sarge
 

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