crussellp Posted February 17, 2022 Report Share Posted February 17, 2022 2014 Edge SEL Hi-Beams Fuse (F39 15amp) Blows When Trailering I can use my hi beams to my heart's desire as much as I want without fail... but as soon as I plug in any 4 pin trailer harness and try to use my high beams, BAM! If blows the high beams fuse #f39. It makes no sense to me since there's nothing common that they share. I don't have high beam wires in the back or attached in any way to my trailer. The trailer lights work 100%. I'm so confused and have no idea where to start troubleshooting this problem. So far I've gone through 10 fuses!! - I've redone the trailer harness wires twice. - I've replaced the headlight bulbs. I have no idea where to go next. Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted February 22, 2022 Report Share Posted February 22, 2022 Thinking about this, I can only imagine one point where both circuits are in common. In the turn signal switch. It's there where you trigger the brights AND the turn signals (coupled to the tow lights). (Just a thought, could be wrong). Quote Link to comment Share on other sites More sharing options...
crussellp Posted February 22, 2022 Author Report Share Posted February 22, 2022 Anything other than scratching my head raw is better! Thank you for the suggestion! I'm still guessing it must have something to do with the trailer wire harness, just can't quite figure out how or why! I've redone that connection twice. The last time with solder and shrink wraps. My buddy said it's always the ground. No matter the electrical gremlin, it's a grounding issue! lol! What one??! Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted February 22, 2022 Report Share Posted February 22, 2022 OEM headlights, or ☠ aftermarket? Quote Link to comment Share on other sites More sharing options...
crussellp Posted February 22, 2022 Author Report Share Posted February 22, 2022 18 minutes ago, enigma-2 said: OEM headlights, or ☠ aftermarket? Good question. The problem first showed up with OEM... blew a fuse, then shortly after a bulb went south, so I swapped out the pair with OEM replacements. I'm about to put in LEDs, not because of the high beam issue but because I find the OEMs dim after driving my wife's Tourag. Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted February 23, 2022 Report Share Posted February 23, 2022 Was tow harness connected when the OEM headlight fuse blew? (Assume it was for high beams). If yes, I'd then suspect its finding ground through the tow connection wiring. If no, I'd suspect for bad ground wire/connection to headlights. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.