No trailer lights - JeepForum.com
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post #1 of 3 Old 07-06-2019, 12:26 AM Thread Starter
rokrau
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2008 WK 
 
Join Date: Aug 2016
Location: San Jose
Posts: 102
No trailer lights

Got stranded on the highway when all my trailer lights went out. Checked Fuse #6 and exchanged with the one from the rear seat power outlets but no change and the power outlet still works with the suspected bad fuse. I have a 5 pin out and my boat trailer uses a 4 pin connector, my adapter is 1month old and worked flawlessly to this day.
I put in a brand new marker light right before getting on the highway. Not sure if there is a short there but it did work when I started and 10 miles into the trip the lights are completely off.
I am at loss where to check next and any help is greatly appreciated.

Thanks!!!


--Roland, 2008 Grand Cherokee Overland, 3.0 CRD, EHM and TRD
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post #2 of 3 Old 07-06-2019, 08:38 PM
SteveROntario
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Join Date: Sep 2017
Location: Ottawa Valley
Posts: 687
Reach up and dig around until you find the 4-way connector, it will be close to the 7-way. The trailer fuses are separate from the vehicle fuses so that you don't lose lights on the Jeep due to a trailer problem but it seems to me you have a bad ground. If you have a hinged trailer maybe you lost the ground there. I've installed jumpers around the hinge to deal with that.

2013 Civic, 2009 Suzuki DRZ-400SM, 2008.5 Grand Cherokee CRD, 1991 Dodge B250, 1934 Hupmobile 417W
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post #3 of 3 Old 07-07-2019, 12:14 AM Thread Starter
rokrau
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2008 WK 
 
Join Date: Aug 2016
Location: San Jose
Posts: 102
Thanks Steve!
I had a short in one of my marker lights that was intermittent and caused Fuse #19 in the front Fuse box to blow. This is a 10A but last night I was too tired to figure this out. Repaired everything today and hopefully back on the road tomorrow.
Again thanks for your help.
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--Roland, 2008 Grand Cherokee Overland, 3.0 CRD, EHM and TRD
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