11boostedgt Posted March 31, 2018 Posted March 31, 2018 I have a 2010 legacy gt. And the dome light won’t go off. I had to look intercooler the puddle lights when one side stopped working. I disconnected the battery, checked to see what was wrong (blown inline fuse) left it all disconnected till I get the new fuses and holder in. Reconnected battery after everything was back together. Now my dome light won’t turn off? Not sure what happened! Hope y’all can help me out
NVAKeith Posted March 31, 2018 Posted March 31, 2018 Assuming you have the switch in the middle "door" position... Maybe you bumped one of the door switches and dislodged the rubber cover. Does the instrument cluster indicate a door is open?
11boostedgt Posted March 31, 2018 Author Posted March 31, 2018 Instrument cluster doesn’t show a open door.. also found out that the puddle lights are not turning off on the side that was still working.....
DrD123 Posted March 31, 2018 Posted March 31, 2018 It's a pretty simple circuit - first, make sure the switch is set to door. If it is, and the dome light and puddle light are staying on, try unplugging the puddle lights and see if the light turns off. If it does, and then the dome light works normally, there's a short somewhere in your puddle light harness (short to ground). (based on the wiring diagram, the body integrated unit turns on/off the lights - if they are turning on when you plug in the harness for the puddle lights, then you have a short - if you unplug the puddle light and the dome light still won't turn off in the door position with a door closed, there could be an issue with the BIU or there's a short elsewhere in the circuit
11boostedgt Posted March 31, 2018 Author Posted March 31, 2018 I really don’t want it to be the biu. That can get expensive really quick.
DrD123 Posted April 1, 2018 Posted April 1, 2018 odds are it's the harness - somewhere there is a short to ground (something touching the body or a ground wire when it shouldn't be) - only way for the puddle lights to turn on when the doors are closed, etc. is for the BIU to turn them on (by providing a ground to that part of the circuit) - if they are on, and the biu is not turning them on, is if there is a short. You need to get in there, unplug the harness for the puddle lights (ideally, at connector B36 (I1), but that's hard to get to (it's on the BIU) so at the subharness for each leg of the puddle lights - verify that when you disconnect it, and the lights should be off, that you don't see ground looking towards the BIU, or looking towards the puddle lights. If you see ground on the puddle light side, that leg has a short - if you see it towards the BIU, then there could be a short between the connector and connector B36 (I1) on the BIU - walk the harness back to the BIU and look for damage - then disconnect and see if you see a short to ground on the harness, and then check to make sure the BIU is behaving. Anything that was reworked is suspect, so start there first.
11boostedgt Posted April 1, 2018 Author Posted April 1, 2018 I had to unplug the puddle lights for the night so my battery wouldn’t go dead. I unplugged both sides underneath the wheel well. And that didn’t change anything. Everything was fine until my driver side puddle lights stopped working. Then it has all went to hell and started Messing up
foxrider28 Posted May 30, 2018 Posted May 30, 2018 Any updates on this. Mine decided to do this today. Puddle lights had an issue long ago blew inline fuse and main fuse for the accessory circuit. Fixed main fuse because alarm/keyless went out with it. Got in car to goto work stopped by my parents and nothing abnormal. Went to leave parents and dome light that hadn't worked for oh year plus now was on and instantly scratched my head. Got to work and realized door sills were lit up too also not working for same time frame. I have inline fuses to replace the old one but haven't had a chance to fix it plus I assumed the puddle light would just blow it again as it was the reason it blew in the first place.
foxrider28 Posted May 30, 2018 Posted May 30, 2018 Well, I figured out the issue which is the ground circuit of the puddle light. At lunch went out and found main fuse blown... good for now because battery didn't drain. Bad because no keyless entry, hud, dim dash with headlights, etc. Goto parts store about 3 min away get fuse for main "backup" fuse. Pops as soon as I touch it to the terminals. Fine I got this. Fight fender liners with wheels on enough to follow harness to plugs in engine bay, unplug and fuse goes in fine. Ok it's good right, keyfob, HUD, etc all work... Wrong door sills and dome light stuck on. So the ground coming from the puddle lights has to be the problem and if the circuit isn't completed the BIU goes nuts and powers the circuit anyway.
11boostedgt Posted May 31, 2018 Author Posted May 31, 2018 Honestly I didn’t figure it out. But what you are saying could make sense.. I have to get new inline fuses with the puddle lights and give what I are saying a try. I honestly unplugged mine and just turned the dome light off to get me by till I had time to rip into it again.. but if that worked for you I’m willing to give it a try
foxrider28 Posted May 31, 2018 Posted May 31, 2018 Well i have the lighted door sills and they stay on too so I have to fix it or rig up a ground and I dont like doing work like that. My question is more how does this work if you dont have the puddle lights? That circuit cant just be left open. Are the engine bay harnesses removable or is there just a closed plug end? Found 1 under battry tray and 1 under air filter box bit couldn't trace them anymore after that.
11boostedgt Posted May 31, 2018 Author Posted May 31, 2018 That’s where I have mine unplugged. And my dome light would stay on. I haven’t looked at it any more. But if it is due to a open ground. Then I will fix the online fuses and just hook them back up and see what happens... this all started when I realized that one side of my puddle lights wasn’t working
foxrider28 Posted May 31, 2018 Posted May 31, 2018 Yep the passenger side lights right? It's most likely the one under the front door and the only fix besides replacing the light would be to some how complete that ground curcuit. Needless to say I'm calling the dealer today and will have them fix it since it's under recall and I've still not done the airbag . I know there has to be a way to disable the puddle lights all together and still have the other accessories but I've just not got time to research all this. Others have simply replaced the in-line fuse and the lights to the revised versions and all is good.
foxrider28 Posted May 31, 2018 Posted May 31, 2018 https://r.tapatalk.com/shareLink?url=https%3A%2F%2Flegacygt%2Ecom%2Fforums%2Fshowthread%2Ephp%3Ft%3D262737&share_tid=262737&share_fid=5383&share_type=t See this thread for details on the led housing PN and what others ran into. As well as the recall notice on the lights. $12 ea for the lights and I'm sure the passenger front is all you need to replace but it's worth checking the others for corrosion.
11boostedgt Posted May 31, 2018 Author Posted May 31, 2018 Mine was actually the driver side. The fuse popped . And I by passed the fuse and popped that main fuse. Fixed that and just disconnected them. Please inform me what the dealer does! Was going to take mine in. But scared it’s the biu
foxrider28 Posted May 31, 2018 Posted May 31, 2018 So the dealer I talked to says it is all covered under recall if the fused harness was never added. In your case they may not cover it since the fused harness was there and you removed it. So if you want to fix it yourself just order new lights H471SAJ010 or equivalent and put them in with an in line fuse like this https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 or from the looks of this install video https://www.youtube.com/watch?v=BuldjXWMlsI there used to be a plug on the engine harness that simply jumped the pins to close the circuit. So maybe simply jumping a wire from pin to pin on the engine harness side would "disable" the lights. Here are the Factory "repair' instructions as well: https://static.nhtsa.gov/odi/rcl/2012/RCMN-12V602-0345.pdf Boy I've had one heck of a productive day at work. Productive on researching how to fix my car hahahah.
stewdogg Posted May 31, 2018 Posted May 31, 2018 Thanks for putting all the leg work in foxrider28! The passenger side puddle lights haven't worked since I got the car and I have heard the stories of burnt BCM's, so I planned on dealing with them soon and you made it that much easier for me. So, the inline fuse is the solution to the burnt up BCM's? I guess I'll check and see if I have the inline fuses. If no fuses, I will look into the warranty coverage and if there's a fuse, I will unplug and tape them off. Thanks again!!
foxrider28 Posted June 1, 2018 Posted June 1, 2018 Thanks for putting all the leg work in foxrider28! The passenger side puddle lights haven't worked since I got the car and I have heard the stories of burnt BCM's, so I planned on dealing with them soon and you made it that much easier for me. So, the inline fuse is the solution to the burnt up BCM's? I guess I'll check and see if I have the inline fuses. If no fuses, I will look into the warranty coverage and if there's a fuse, I will unplug and tape them off. Thanks again!!Simply unplugging the lights won't resolve the problem alone. I haven't tested jumping the engine harness connectors to see if the "caps" the video install vehicle had to remove from the engine harness are in fact just jumpers. I'm not so sure I really want to try it myself without some kind of confirmation. But by the looks of the subaru diagrams it should be no different than the connector "caps" if it does just need the circuit closed. Maybe one could get the factory connector "caps" from a junkyard and try, but I'm scheduling work at the dealer in a oupke weeks while I'm out of town to get this and a few other recalls I've not had fixed yet like the air bag and wiper cover. [emoji54]
11boostedgt Posted June 1, 2018 Author Posted June 1, 2018 I wish I would have known this when I posted this thread! I’m going to order new online fuses and repair the harness I have then see what happens. Hopefully it all works out!!
foxrider28 Posted June 1, 2018 Posted June 1, 2018 I wish I would have known this when I posted this thread! I’m going to order new online fuses and repair the harness I have then see what happens. Hopefully it all works out!!You may want to replace the lights that went out too. They are bad otherwise this wouldn't have happened. The fused harness just keeps the BIU from getting damaged. The "pcb" that the leds are attached to is the problem, they are probably corroded inside and opened the circuit. The hanesses are fine with or without the fuse in it since it's just an extra saftey point. The dealer is going to replace my lights and add the fused harness section.... If they can even get the parts seems they're not readily available unless it's the whole kit.
11boostedgt Posted June 2, 2018 Author Posted June 2, 2018 When I bypassed the harness with the fuse in them the first time all my lights worked . Not really sure what caused the issue
foxrider28 Posted June 2, 2018 Posted June 2, 2018 When I bypassed the harness with the fuse in them the first time all my lights worked . Not really sure what caused the issueInitally the fuse in the harness blew on the power side because water got in the lamp. By the time you bypassed the harness fuse tge lamp dried out and was good until the pcb got wet again and blows main 10amp fuse. So your ground side is possibly still intact if your dome light isn't stuck on like ours. Our problen is the lamp pcb has corroded and completely shorted out both power and ground and the BIU says let there be lights if no ground signal is there. If your alarm and HUD work you're good till the ground is broken. In the Tribeca install there's caps and I'd really like to know if it's just a jumper or something else.
11boostedgt Posted June 2, 2018 Author Posted June 2, 2018 I guess I’m either going to order new online fuses. Or make my own and reinstall them and see what happens.
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