Towing light issue
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Hotshot
Joined: Mar 2011
Posts: 11,950
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Towing light issue
The tail lights on my trailer don't work when it's hooked up to the Ex.
All of the other trailer lights work fine, just not the tail lights. I've verified that there's no power on that circuit at the plug.
Anyone seen this before or know where to start looking?
Thanks,
~Bass
All of the other trailer lights work fine, just not the tail lights. I've verified that there's no power on that circuit at the plug.
Anyone seen this before or know where to start looking?
Thanks,
~Bass
Elder User
Joined: Jul 2012
Posts: 575
Likes: 1
From: Eastern KS
The tail lights on my trailer don't work when it's hooked up to the Ex.
All of the other trailer lights work fine, just not the tail lights. I've verified that there's no power on that circuit at the plug.
Anyone seen this before or know where to start looking?
Thanks,
~Bass
All of the other trailer lights work fine, just not the tail lights. I've verified that there's no power on that circuit at the plug.
Anyone seen this before or know where to start looking?
Thanks,
~Bass
Edit: on my 02, it appears fuse 38 is for "trailer tow park lamps and backup lamps"
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
Fuses, then take a little sharp pointed light tester and stick it in the trailer plug to check each circuit one at a time and match them up to the trailer circuits. You will need someone (with some patience) to work the controls up front. I labeled all mine with a marking pen; LB RB ST TA GR etc.
Elder User
Joined: Jul 2012
Posts: 575
Likes: 1
From: Eastern KS
Fuses, then take a little sharp pointed light tester and stick it in the trailer plug to check each circuit one at a time and match them up to the trailer circuits. You will need someone (with some patience) to work the controls up front. I labeled all mine with a marking pen; LB RB ST TA GR etc.
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Hotshot
Joined: Mar 2011
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LB RB ST TA GR - Left Blinker, Right Blinker, Stop, Tail, Ground. 
I know it's in the Ex, and that the fuses are good. Guess I'm going to have to start tracing a wiring harness issue.
~Bass
I know it's in the Ex, and that the fuses are good. Guess I'm going to have to start tracing a wiring harness issue.
~Bass
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
Short for taillight ground left blinker etc
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Elder User
Joined: Jul 2012
Posts: 575
Likes: 1
From: Eastern KS
I follow ya now... I figured out the first 3 but the last 2 threw me off.... They're actually already labeled on the spring loaded cover that protects the 7 pin plug when its not in use... 
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Veteran/Sheepdog
Joined: Feb 2012
Posts: 6,047
Likes: 110
From: Western AR
Bass, I had the same issue when I bought mine. Went to tow a trailer...and no tail lights. I had blinker on one side and one stop lamp. It was three of the fuses under the hood blown. Right next to the brake master cylinder. Not sure if the 00 is set up the same way...
is a BAAAD MAN
Joined: Apr 2005
Posts: 3,738
Likes: 5
From: Winston Salem NC
It wouldn't hurt to add an extra ground from the harness on the Ex to the frame and an extra ground on the trailer side too. Most of the time it seems like a ground issue in these cases.
Another thing to check is the pigtail on the truck, unplug it and look for corrosion on both sides.
Another thing to check is the pigtail on the truck, unplug it and look for corrosion on both sides.
5th Wheeling
Joined: Jun 2013
Posts: 26
Likes: 0
Yep, me too.
Just found same issue on my '05...
Fuse is fine,(fuse 38) but no power at the 7 pin plug.
Probably a broken wire.........
look up Bargman or other company to find a diagram of the 7 pin.
That will help with tracking........
I am doing a little rigging for this weekend's tow. Fix it next week.
Fuse is fine,(fuse 38) but no power at the 7 pin plug.
Probably a broken wire.........
look up Bargman or other company to find a diagram of the 7 pin.
That will help with tracking........
I am doing a little rigging for this weekend's tow. Fix it next week.
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Last night I learned that the Ex was previously tagged in the right rear. There were a couple of indications that something wasn't quite right, but the paint match was excellent so I didn't think about it. Then I saw something in the right rear wheel well and realized that the repair was sub-standard. Now I'm wondering if the trailer light issue and the rear-end vibration are due to getting hit???
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