[packman1016]

Happy new year for starters. This is my first forray into the forum so thanks for any help you can provide as I am about to pull my hair out on this one. It may be a tad lengthy, but I wanted to tell the story of what the issue was and is now so it may help you come up with the advise I need.

I have a 2012 Santa Fe and the front map light fixture was where my issue started. I believe from what I read that the diode had gone bad because the map lights would work if the light button was pressed, but not if the door button was pressed. At that point, the only issue I had was the light now working when the door opened. So, I ordered a replacement part and tried to install it today. It was harder to get the old one out than last time, but it came out no worse for wear and I unplugged the old map light fixture. I plugged in the new one and it did not work at all. I checked the wire and it looked fine, the prongs and they were fine and tried it again... nothing. Now, the back seat dome light and trunk dome light don't work either. (with the new map light plugged in or not) Old one back in and still nothing. Checked the manual for the fuse that is supposed to control those lights and it is fine. I got frustrated because it made no sense and gave up for the night. (no light is even plugged in where the map light goes for now) I come in the house and now every hour or two (when I lock the car) the alarm sounds for no reason. The alarm button won't shut it off either, I have to hit unlock and it stops. (3 times in the last 5 hours now) So, I have decided to leave it unlocked for now. So far, so good. BUT, I need to lock my car when I am out without the alarm sounding and I need my dome lights working. HELP...

Everything else with / in the car seems to be normal. Any thoughts would be much appreciated. Thanks!

Chris

 

[jnpulliam856]

I don't have all of the same issues you are having, however I am almost positive the root problem is the exact same.

I have not diagnosed my issue yet but figured I would dive into the forums first to see if there was a common easy fix that at least seemed worth trying...... 🎣

Came back empty handed. . . Now with that said, I will be doing a full wire diagnostic test later on today and I will return with my results.

Now my theory here is that beings that so many people have the occasionally working interior lights, and others are completely failing, I have come to the belief that there has been low quality wiring materials used and\or low quality soldering at the attachment points which leaves us with the same end results. Which also makes for diagnostics more difficult but not impossible.


However if you have had the issue fixed either by yourself and or local mechanic \dealership and have found the issue I would be very much appreciative of you could relay that info before I get down and dirty in about 2 hours from now lol. If not 🤷🏻‍♂️ I will figure this out one way or another. The only other thing jt could be other than wiring(short, deteriorating materials), bad connectors, or fuse\relay is gremlins 🤷🏻‍♂️ so it will only take the amount of time it takes to find the wire path ways and relay locations and then test from both ends to see if there is any voltage drop\spiking\interference of any of the wires. And if they come back clean then it's the relay itself, the bulbs they used, or again . . . Gremlins.