The modern vehicles do have some complex controls regarding trailer lights! This came about when the turn signal lamps were separated from the brake lights, and further complicated by the mfg deciding everything has to go through as many "modules" as possible! LOL
A couple of easy tests... (I prefer a test light over a VOM because it puts s slight load on the circuit, simulating what the trailer lights will do.) Try connecting test light from the right turn terminal to the ground terminal. If it doesn't work, try testing from the right turn terminal to a known good bare metal frame ground. If it works there, there is a bad ground connection to the back of the plug.
If it does the same going to external ground, pull both plugs out so you can see the back side. Those are notorious for corroding the terminals, both loosing connection and bridging across with conductive corrosion. There are plugs with the lead wires potted in, I prefer those over the screw terminal type.
Some of the newer tow packages use multiple fuses, a fuse for every circuit to the trailer. Be sure they are all good, especially after plugging into a strange trailer.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
... [Read Article]
Latest Ad:
2022 John Deere 5045E, 4wd, front end loader and 3rd function with grapple. 120 hrs, 55k new, must sell
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
