All ActivityMost RecentMost LikesSolutionsRe: Trouble with Left blinker light on travel trailer.Hey all, thanks for all the help. I had just gotten this truck and didn't even realize it had so many fuses! That's all it was. Thanks again.Re: Trouble with Left blinker light on travel trailer.I have a 2007 Chevy Diesel LBZ. Thanks for the fuse idea, I'll try that first.Trouble with Left blinker light on travel trailer.So when I hook my truck up to my travel trailer I can't get the left blinker to work on it. We took my buddy's truck who knew he was wired good and the blinker worked. So bulb is good and wiring on trailer seems like it should be good. Tested my truck side 7 pin connector with ohm meter and left blinker was registering and blinker on my truck works fine. Replaced entire 7 pin connector on my truck as well with no success. Still registering power to the connector but as soon as I hook it up to the trailer doesn't work on the trailer. Back my buddy's truck up again. Works just fine. Any ideas?