Passenger side turn signals in Vue

My friend has a 2006 Saturn Vue V6 Automatic 4WD. He's towed boats and trailers before, but this weekend hauling a u-haul trailer everything
worked fine till when stopped to unload he turned on the emergency flashers. (It was a U-Haul installed hitch he'd had for years) Didn't think anything of it but later he noticed that the turn signals didn't work, nor did the flashers. Replaced both fuses and the driver's turn signal worked great... nice and bright. The passenger side was really dim but was working. He then tried the hazard lights and it blew out both fuses again.
Anybody run across this sort of thing before? Thanks!
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Did the fuses still blow with the U-Haul disconnected? Sounds like there was a short on the passenger side that caused a voltage drop enough to dim the lamp but not enough to trip the fuse. With the 4-way flasher on, higher load might cause the fuses to blow. Which fuses blew and what current rating were they?
Did you get a check engine light? All dashboard indicators still working? Reason I asked is when I got my '01 lw300 (used), there was a problem with the rear turn signal. I might have caused a short circuit while trying to fix it. Can't be sure if it was related but realized shortly afterwards that the TRAC lamp did not come on at key-on. It was still under dealer warranty (with about 5 days to go) and got them to change the BCM (body controller module) which fixed the problem.
www.Aircooled.net - So you're a old school VW head also. My '69 beetle went to a recycler about 20 years ago. I had the Henry Elfrink manual that I gave to a friend's son when he got a classic dune buggy.
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The fuses blew even after U-Haul disconnected.
Both the flasher and the run signal fuses blew and both were 15 Amp.
The fuses are OK if the turn signals are operated for either side separately, though as noted the passenger side is very dim.
The Check engine light is not ON.
I am having him compare it with a relative's Vue to see what lights are missing (probably hard to tell if one isn't there otherwise). A picture he sent seemed to have a lot of them. Three horizontally on lower left, 3 diagonally on upper left, one in the speedometer, 6 in parallel vertically in the tach (3 on each side), and the check engine on the upper right. Could possibly be part of another one on the lower right but it is cut off so hard to tell. He told me he thought that they all appeared to be operational. When he gets the comparison I will post any discrepancies.
Thanks for your help!
I no longer drive my '65 Beetle on a daily basis and have a '64 waiting to be restored... 97k original miles on it. Slowly but surely it is getting there. KWW
On 6/18/2012 9:54 AM, Oppie wrote:

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When was the trailer light harness installed?
Possible short from yanking on the harness.
Neighbor up the street is nearing the end of restoring and old bug. Not sure what year but sent the body out for work while he finished putting a Subaru 4-banger into the chassis. He's also got a 65 VW bus that's next to restore.
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Good call on the harness. I was finally able to get over to his house to check it out myself while we were looking at the dash lights and saw that the harness wire was resting on the muffler. Yep. One wire had melted. We pulled it taut, cleaned it, put liquid electrical tape on it, zip tied it up better, replaced the fuses yet again, and thankfully it worked! Thanks again.
My daily driver is now more like a weekend driver (given the summer heat) and I am still in process of restoring a very nice '64. Taking my time to get it right. KWW
On 6/18/2012 10:10 PM, Oppie wrote:

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You are welcome. In my job as electrical engineer, troubleshooting and failure analysis is a big part of my work...
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