I have the same problem as whiteknuckle regarding splicing the wires. There's no provision to install a T-connector for ease. Please provide me a solution, as going to the dealer is my last resort. Thanks.
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Re: wiring trailer lights for 2003 Windstar
To do it correctly and permanantly, cut the wire you want to splice into, then solder the new wire in with the old wires. Make sure to heat shrink. Less permanant, is to find some wire splicers that attach to the existing wire with a little tab.
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Follow the wire back up under the hood to see where it is connected. Sometimes there is an external circuit breaker or the wire may go into the fuse box under the hood It just depends on who installed it.
You can buy replacement taillight bulbs with wiring pigtail wiring hanging out of the side of the bulb. You'd use them to replace your existing taillight bulbs and connect your trailer harness to the pigtail wires. You may need to drill through the taillight housing to get the harness wiring in to the bulbs - if you have to do that, seal it back up around the wiring with RTV silicone.
That's a lot easier than tracking down each wire, probing it to find out what it does, and splicing into it with pinch splices (which aren't very reliable), then periodically replacing the pinch splices that've gone bad and made your trailer lights fail. You can make a pretty good splice to the pigtailed taillight bulbs, and it's really easy to tell what each pigtail does - brake/turn or park light.
check fuses also is it manufacture installed or after market installed. if manufacture installed check connections behind the connector. if after market installed check where they spliced wires into the tail light wires behind bumper and any where else that wires could be connected do you have tail lights and brake lights on the suburban send email to email@example.com
You will need at least a 6way car and trailer connection.Start by clipping the plug ends off of your current system and rewire them to the plug Right turn, left turn, running lights, trailer brakes, ground, and then remove one of your trucks taillight assemblies and splice a wire to the reverse light. Then run it through the bumper to the final remaining wire on your 6way. On the trailer end run continuity test through the plug to ensure that the correct functions are going to the correct locations on the trailer. Install your reverse lights on the trailer and run them to the same pin location you spliced the reverse wire to earlier.
Check this site. Full of info and color codes. http://www.etrailer.com/faq-wiring.aspx
Did you use a direct plug that plugs into the harness or just a 4 way plug spliced in?
On this truck you will have to have a wiring converter... it will use turn signals and brake light (3 wires in) and convert them to a 2 wire which is what is required. Hope this helps, Mike
You didn't say if your trailer wiring was factory or after market installed so... look under the back end and trace the wiring from the tail lights. Look for a splice connection. There may be an inline fuse installed between the tail lights and the fuse block. Also look for a bad wire(s) which may have caused the fault.