trailer wire question
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New User
Joined: May 2003
Posts: 24
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From: sebring ohio
trailer wire question
i hooked up the excursion to my travel trailer today. i plugged in the 7 pin connector and i have all lights except the lh brake and turn signal on my trailer. i checked the fuse #20 in the battery junction box and it is good. i also changed the bulb with the rh side with no help. also the lh park light works on the trailer!! any help this has me baffeld!!
Senior User
Joined: Feb 2004
Posts: 478
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From: Washington
Try unpluging the trailer and stick a probe tester into the connector on your truck, if it blinks, it's in your trailer wiring. Plug the connector back up and probe the blub socket with the blinker on to see if you have power back there. If not, somewhere in the line there is a bare wire grounding out or a splice that has corroded and is stopping power. A lot of times the socket gets flat on the lead tip at the base of the blub and it doesn't make contact, or there is corrosion in that area stopping power.
Hope this helps.
Hope this helps.
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