Working on it . . . but haven't yet been able to reproduce the weak/fading flashing symptom.Wow! Thanks. Anxiously awaiting your results.
Great. (Thanks @AnnaPeab ) We're all trying to help from a distance, and whatever we info "gets us closer" can only help.She’s making more videos to post. I’ll ask her to read your request.
Am I misunderstanding "markers are illuminated by the headlights"? Sounds as if the headlight bulb has to be on for the amber marker to be lit. If that's what's meant, then not so. The amber marker toward the outside of the headlight assembly has a bulb behind it. That bulb is independent of the headlight.Although, I seems to recall the markers are illuminated by the headlights (amber lens overlay) . .
Sorry for the delay and thanks to everyone for your help!She’s making more videos to post. I’ll ask her to read your request. Although, I seems to recall the markers are illuminated by the headlights (amber lens overlay) and rear markers wrap from the tail lights.
The videos are telling. Will get back to this.I'll be checking the sidelights that my dad has been talking about when it gets dark here within the next few hours.
No problem, and still helpful.Sorry for the delay and thanks to everyone for your help!
Here are two new video links:
1. Car On Hazards/Turn Signals Test
2. Car Off Hazards/Turn Signals Test
In the one with the Hazards from the front view, it looks like there's light on the right side but I think it's just the reflection from the left.
When it's dark, if the rocker switch (Subaru calls it the Parking Lights switch) is turned on, this is what there should be:I'll be checking the sidelights that my dad has been talking about when it gets dark here within the next few hours.
and3.Parking Light Bulb
The parking light bulb is integrated into front turn
signal light bulb as a unit
The bulb shown at https://parts.subaru.com/p/Subaru_2008_Outback-30L-5AT-LLBean/BULB/49295585/84920AG030.html clearly has two filaments.4.Front Side Marker Light Bulb
The front marker light bulb is integrated into front
turn signal light bulb as a unit
It's a 2008, but essentially the same.The 2005 FSM lists the Front Turn Signal . . .
OTOH, the non OEM replacements I can find online quickly are single filament.
Yes, it certainly could be a short in the bulb.Do the clearance light and the turn signal/hazards/remote loch-unlock indicator all use the same bulb? Could it be as simple as a short or burned out second filament in a two filament bulb?
Certainly, it can be replaced to get that out of the way. It's been suspect all along. (It's a bit tough to get to but it sounds as if you've been there before -- via the wheel well. Is this something Anna might be able to do?)I say she replaces the front dual filament amber bulb (the one easy thing I did not do - wasn't in the position to remove the wheel well cover when I was on the trip). If it's not that, then I believe it is the BIU.
This part of it I'm able to address - per this image you provided of the board, the SE336 IC is clearly a high side current sensor and amplifier device, capable of detecting the lighting circuit current loads on each side of the car to some reasonable degree of resolution. You can see both the shunt resistors here (the large cylindrical devices with the color bands), and also the 10k Ohm pickoff resistors to the IC (the SMT parts with the "103" letters on the top). And I'm guessing it's three channel, given the three 10k Ohm resistors.The flasher is obviously able to detect the load and switch to the higher rate when one of the two bulbs is burned out. I have yet to figure out how this works.
When I increased the load to over 8 A (equivalent to doubling the number of bulbs on each side) the switching rate remained at 85 cycles per minute. So the flasher does not limit the current or cause it to "fade out" in the face of an excess load.
At this point the understanding of the system, and the symptoms, are consistent with a short or near short. As the bulbs can be a problem, especially the dual filaments, pulling them is the first thing. @DavidPeab is already on this, but doesn't have access to the car. This will depend on what can be done where the car is now located (Las Vegas).Now how does David use all of this information to debug the root cause of the problem? Not really sure.
The symptom in this case is unusual -- I don't recall ever working on a turn signal problem that involved the flasher turning on and off ("clicking") at the normal rate, while the bulbs barely lit up, if at all.We made it to Las Vegas with the obligatory stops at the Grand Canyon and such. The passenger side amber lights worked throughout the last 4 days of the 9 day trip, so I assumed the problem was solved. Unfortunately, my daughter told me it is creeping back intermittently.