[MBZ] Wife managed to kill the duramax

[Kaleb Striplin via Mercedes]

Since she killed the air suspension on her GL somehow, she had to take 
the truck this weekend to haul the enclosed trailer to her show.  When 
she went to leave, she had somebody hook up the trailer and plugged it 
in.  She says a few minutes later she notices smoke coming from the 
wiring harness at the trailer.  Somebody taped it up with duct tape but 
now she reports right turn signal not working. She gets home and of 
course I have to back in the trailer.  I immediately notice an odd 
scrapping sound coming from the steering wheel that has never been there 
before.  After backing the truck in I unhook the trailer and of course 
the ground wire is now bare all the way to the frame of the trailer. I 
can tell much else with mess of duct tape but it somehow managed to 
short at some point in the harness.  The wiring where it starts going 
into the channels back to the lights look fine so the short must be 
closer to the connector. Regardless I am sure I will have to replace the 
end of the harness. I was finished messing with it for the moment when I 
noticed as I was coming in the house that the brake lights are on even 
with the truck turned off.  WTF?  I pull the fuse and the rears go out, 
but the top mount one by the cab stays on.  I cant find a fuse that will 
shut it off.  I got under the dash and unplugged the brake lite switch 
and they still stay on.  I am not sure if this 2002 is new enough to 
have the lights controlled by a computer, or if this trailer situation 
shorted out something in the truck.  What I find odd is the truck has 
fuses for the trailer lights, why didnt it blow?  I sure hope I do not 
have a major wiring problem now.  It is unbelievable how this stuff 
happens seemingly without fail when she drives a vehicle.  She has 
another show next weekend.  Now that the truck is down, there are no tow 
vehicles left to tow her trailer assuming I have time to fix the wiring 
on it.  I guess if she wants to go to this show bad enough, she can rent 
a vehicle of some sort.

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