This is my first post on this forum so hello everybody! I'm happy to join Subaru Forester community :-)
So I finally decided to do the "map lights mod" to come on together with dome light when door is open.
I did the mod, replaced the map and dome lights with LED panels and everything else went well and worked fine until one point.
I tried to find a better mounting position for the LED panels inside thee map light bulb compartment and accidentally shortened the circuit :-(
(didn't notice that the LED panels have a metal base).
So I burned the 15Amp fuse in the engine room fuse box -fuse labeled "clock-room" (image attached).
I have replaced the fuse, but since then the dome light doesn't come on when door is open.
Dome lights do work when I manually switch the roof switch to "ON" position. They do not work in "DOOR" position.
I have also checked the yellow with red stripe wire that goes to the dome light (image attached).
Before I shortened the circuit the yellow with red stripe wire used to have a ground signal when door is open - now it doesn't.
Does it mean I burned the BIU?
Also if this is any indication, the red control light "door open" on the dash control panel works fine (image attached).
What should I do now to diagnose the problem?
Should I unmount the BIU, open it and see if there is any signs of burned trace?
I'll appreciate any suggestions, thanks.
I have some update to my question. Don't see the edit button so I quote myself.
Just to be more specific about the car, it is a 2006 Forester XT 2.5 turbo
. Didn't mention it earlier because it is in my account details but I thought it is easier for you to read it here.
So I have spent all day looking for potential cause of problem and I think I might have found it.
The plan was to find a BIU box but eventually I didn't find it (I don't know if 2006 Forester even has one), instead I found about 5 other boxes with electronics in different locations under the dash.
Opened each one and checked if there is any sign of burned PCB trace and finally... found one!
I already knew I was close even before I opened it because it smelled like burned electronics :-)
The box I'm talking about is the Keyless Control Unit (see attached photo 1 ) located on the passenger side (need to remove the glove compartment to access it).
I opened the box and easily spotted the burned trace, you can see it on the attached photos 2 & 3.
So I have soldered the burned trace and ran to the car to install the unit and see the result and... the dome light lit :-)
My happiness didn't last long because when I closed the door the light didn't go out.
I guess when I shortened the circuit except of the PCB traced some other element (like transistor or relay) also burned and now is stuck to "always ON".
The only way to turn off the dome lights is to put the switch into OFF position.
Does anyone know what is the black square element on the PCB? (marked on the photo 4)
Can I buy this element in a regular electronics shop?
The burned trace leads to this element so I assume this could be burned too, or maybe that is not all?
Any suggestions welcome :-)
I also noticed one other thing, since I soldered the bad trace and installed the unit back in the car, the green illumination ring around the ignition switch (photo 5) is also "always on"
and there is no way to turn it off, so I guess it will drain the battery in a day or two if the car is not used.
Hopefully I'll be able to fix the problem soon.
Looking forward to your suggestions!