Question about 2004 GMC Sierra Denali
I have a 2003 yukon denali, the trailer wiring exiting the vehicle doesn't work properly the yellow wire for lh signal and lefthand brake only allows the signal power to work the brake power doesn't work. On the rh side the dark green does let both brake and signal power through. the park lites are good lh and rh signal is good and the rh brake is good. I checked the fuses and the rh signal and brake work at the fuse and the lh signal works at the fuse but no lh brake power ant idea? thanks jc
Have a factory installed trailer wiring hook up. Have top right pole live at all time. If I leave a trailer hooked up the running lites stay on even when key is turned off. Which pole should the running lites be hooked to , to have theom on when the headlites are on?
Posted on May 01, 2013
If your signals & brakes are on 2 different circuits, ( for example a red lens for stop & an Amber for turn.) then you'll need to buy a converter that goes between vehicle & trailer. They're not too expensive at any trailer or RV place. I think some of the autoparts stores stock them now too.
Posted on Nov 29, 2008
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Posted on Jan 02, 2017
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