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Old 06-19-2007, 12:24 PM   #1
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Brake Lights LED Burned Out?

Well we just noticed our new Bambi's right brake lights don't work!

My wife is sure they were fine about a month ago.

I sure doubt that the LED's burned out....

Any ideas on what happened? Were to look for the problem?

Don't feel like sacrificing the whole summer to have our dealer take a look at it (and have it in the lot for weeks on end).

Suggestions?
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Old 06-19-2007, 12:30 PM   #2
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Hi, The first thing I would do is take it apart ( take the light out of the housing ) and with a test light or multi meter, check to see if you have power to the leads that go to the light itself. These things can and do go bad.

Good Luck.
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Old 06-19-2007, 01:14 PM   #3
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Quote:
Originally Posted by campadk
Well we just noticed our new Bambi's right brake lights don't work!

My wife is sure they were fine about a month ago.

I sure doubt that the LED's burned out....

Any ideas on what happened? Were to look for the problem?

Don't feel like sacrificing the whole summer to have our dealer take a look at it (and have it in the lot for weeks on end).

Suggestions?
Definetly make sure it is not a wiring or power supply issue, then...

Since it apears you are under warranty, you can contact any dealer via phone and have them warranty a defective LED lamp assembly if it turns out to be the problem, as opposed to wiring or power supply. They can have the part drop shipped to your house from Jackson Center if they don't have it in stock themselves. I believe there a many forum members who take care of similar situations in this manner.

As a note, most LED lamp assemblies can not be serviced internally, they are replaced as an entire unit.

John
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Old 06-19-2007, 03:39 PM   #4
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If they are made by Maxxima, they should have a very long warranty. We put some 8 inch schoolbus LED's on the GT which were the same diameter as the wedding cakes. For whatever reason, one light assembly had individual LED diodes which shopped working. So, the whole light was replaced under the warranty of the 10years/many thousands of hours.
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Old 06-19-2007, 11:38 PM   #5
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Quote:
Originally Posted by campadk
Well we just noticed our new Bambi's right brake lights don't work!

My wife is sure they were fine about a month ago.

I sure doubt that the LED's burned out....

Any ideas on what happened? Were to look for the problem?

Don't feel like sacrificing the whole summer to have our dealer take a look at it (and have it in the lot for weeks on end).

Suggestions?
Hi, I have one light on my trailer that has been acting up. My right rear, lower brake light quit working. I took it out of the housing and tested the wires to the LED light assembly and all wires were working, but the brake light part was not. The light assembly is a sealed unit. I have ordered new lights, but have not put them in yet. This one light works at times then doesn't work. I would think that there is some kind of circuit board inside of the light assembly [that makes them work like double filliment bulbs] and I don't think they are worth trying to repair. Maybe if enough of these fail Airstream may have a safety recall similar to the one Infiniti has going on now.
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Old 06-20-2007, 06:09 AM   #6
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If all brake lights are not working, then I agree that the LED lights themselves are probably not the issue. Before digging into the lamps themselves, first check to make sure that your tow vehicle is actually providing the proper voltage at the 7-pin trailer connector using a volt meter when you step on the brake pedal. If not, the issue may be in the tow vehicle. Check the fuse in the tow vehicle. If it is OK then the problem is somewhere in the tow vehicle (i.e. an open circuit in the wiring or bad switch or something).

If the fuse is blown, then you probably have a short in either the tow vehicle wiring or trailer wiring that caused the fuse to blow. Check the tow vehicle first. Put in a good fuse and again step on the brakes and check the voltage. If the fuse blows again the short is in the tow vehicle. But if not, it is not gauranteed that the problem is not in the tow vehicle, because the short may only occur under vibration.

But for now let's assume the short is not in the tow vehicle. The remaining choices are a short in the trailer wiring, bad lamps in the trailer, or as in a case I recently had, water got into one lamp and provided the short circuit and blew the fuse. Once I dried out and resealed the lamp everything has been OK.

I gotta go to work, so I can't say more. Good Luck!

BTW, I hated to hear "that they worked a month ago" (unless that was the last time you pulled the trailer). You should always check all trailer lights for proper operation every time you hook up.
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Old 06-20-2007, 07:11 AM   #7
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It is most likely one of two things...bad light assembly or disconnected wire from the assembly. LEDs rarely all go together. One or two here or there, maybe, but the whole thing, it's most likely a total failure of the assembly. Folks here have given you some good ways to approach it.
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Old 06-20-2007, 07:17 AM   #8
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campadk,

You should check the LED with 12VDC before anything else. You can do this from the trailer's 7-way plug. Using a multimeter, verify the 12 VDC slot and the ground slot (or use a test light). There are several threads containing wiring diagrams for the plug.

Next, run a jumper from the 12 VDC + slot into the rear light circuit. Check both sides and see if they light up. If so....you have a wiring issue in the TV and not the trailer.
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Old 06-22-2007, 12:03 AM   #9
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Right break light out too

I would like to hear how this ends. My right break/blinker light does not come on. The lights come on, but the blinker is intermittant. We have checked the 7 way connection, checked the tow vehicle and changed the light bulb. There is no power to the light assemle blinker. We tested the connection under the couch at the front of the trailer and we had power to that. We also found two lights out on either sides of the reverse lights on both sides. Does anyone know of a fuse box to the external harness? It looks like one exists on the schematic, but we could not find it.
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Old 06-22-2007, 06:16 AM   #10
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brad_casie,
I do not believe that there are any fuses in the Stop/Turn/Park/Backup light wiring on an Airstream trailer. These wires rely on the fuses in the tow vehicle for protection. If you have verified that the tow vehicle is working and that you have voltage after the 7-pin plug, but not at the light itself, you are correct to assume that you have an open circuit in the trailer wiring somewhere. The trailer wiring was built up in sections before being installed and the most likely locations for an open circuit (at least where accident damage hasn't completely severed a wire) is where the individual wires "terminate" or connect to something. I would look for any inline connectors to make sure thay are making good connection. The first one would be to make sure that there is good connection where the "umbilacal cord" connects to the main trailer wiring under the couch. The connections here are likely wire nuts or some sort of crimped terminal. If that's not it, and if your trailer is like mine, the rear lighting wire harness is separate from the main wire harness. I found a "pluggable" inline connector to this rear lighting that I could access in the rear storage compartment at the extreme rear streetside (your location may be different based upon your floor plan). You might look for that connector and make sure you are getting voltage at it and across it. If that's not it, look for any other inline connectors. If that isn't it, things will get even tougher because these wires run in the walls and under the floor in places. You may eventually just need to disconnect the existing wire and run a new one (or the proper size, of course).

Good Luck!
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Old 06-29-2007, 09:45 PM   #11
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Found the problem

Well the problem was not the Airstream. The problem was the truck. The truck has a computer problem and has to be updated. The light is not getting enough amps. So were are getting the computer updated on Monday. The truck is a Dodge 2500. A simple way to test for this is to hook the Airstream up to another truck.
Thanks for all the advise,
brad_casie
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