4-Way Flat Trailer Connector w/ 60" Harness and Wire Taps

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• Troubleshooting Left Turn/Stop and Running Light Circuit of Trailer Wiring Not Working
  Have you tried cleaning all of the pins of the trailer wiring connectors with sandpaper? In almost every trailer wiring issue like what you described this takes care of the problem. I also attached a help article on trailer wiring troubleshooting for you to check out as well.
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• 2006 Hummer H3 Does Not Require a Converter or Modulite
  Your vehicle does not require a converter or modulite. If your H3 has the tow package, you will use the Replacement Multi-Tow 7-Way and 4-Way Trailer Connectors for Ford, GM Trucks with Factory 7 Way, part # 30955. If you do not have the tow package, you will use the 4-Pole 60 inch Long Vehicle End, part # 18002 to hardwire a 4-pole into your vehicle.
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• Wiring for Trailer Lights on a 2005 Honda Accord 4 door Sedan
  A trailer is commonly wired so that the power to illuminate the turn signals and the brake lights are carried on the same circuit. However, your Accord separates the turn signal and the brake lamp circuits. Tapping directly into the tail light wiring with a 4-pole like the # 18002 would either leave your trailer without turn signals or brake lights. The converter (black box) that is installed inline on the # 118302 harness will combine the turn signal and brake lamp signals onto the same...
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• Adapting 4-Pole Flat Trailer Connector on 2000 Toyota Tundra to 7-Way Connector on Car Trailer
  You will need the 4 to 7-way Adapter, part # 37185. The adapter will plug directly into your existing 4-pole connector, providing lighting functions for the trailer. Of the remaining wires, the white wire grounds to the vehicle, the purple wire taps into the reverse light circuit (if the trailer has reverse lights), the blue wire carries the output from a brake controller, and the black wires carries 12-volts from the battery for any trailer mounted accessories requiring power. This circuit...
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• Troubleshooting Trailer Wiring Harness for Class C Motorhome on 1998 Ford E350 Van Cutaway Chassis
  I would first spend a few minutes trying to trace the wires feeding that 4-pole trailer connector you found. If the white ground wire had come loose from its connection with the RV frame or chassis, it would explain why you're not getting any voltage at the connector. If that fails, you'll need to simply hardwire in a new trailer connector like part # 18002. The green wire would tap into the right turn signal circuit, the yellow wire into the right turn circuit signal and the brown wire...
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• Installing Wiring Harness on 2009 Lexus RX350 with Factory Tow Package
  The RX350 with the tow package is somewhat of a rarity. Since your Lexus has the wiring port in the rear driver's side cargo area, I would recommend using a circuit tester like part # PTW2993 and check to see if that port is active. Activate the left turn signal and probe the wires until you locate the one that makes your tester light. Repeat this procedure to identify the right turn and running light circuit. I would recommend also testing the right and left turn wire on the port to make...
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• No Brake Lights After Wiring A 1989 Toyota Pickup and Trailer
  It sounds as if you may have wired your 1989 Toyota truck with a 2 wire wiring harness like part # 18002. Toyota vehicles have European wiring, which has the turn signal and brake signal circuit separated. For these vehicles a converter is required to combine the stop and turn signals for towing a trailer. For the 1989 Toyota Pickup you will need the T-One Wiring Harness, # 118379. This harness plugs inline with the vehicle tail lights and has a converter to allow the vehicle stop lights...
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• Troubleshooting Trailer Light Flashers with 2012 Hyundai Tucson
  It sounds like you might have a ground issue. A ground issue usually appears when there is a bigger draw is placed on the wiring. This could explain why the flashers work when the vehicle is off, but will not work when the vehicle is on. Check the white ground wire to make sure that the contact is secure and undamaged, free of dirt, and doesn't show signs of corrosion. Even if there aren't these visible signs, your ground may be in a bad location. Try moving the ground to a better location...
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• Trailer Wiring Harness Recommended for 2022 Toyota Tacoma
  For a 4-pole trailer wiring harness, I'd recommend the Curt # C56349 which would plug inline between the vehicle's taillight wiring harnesses and the taillight assemblies. You can also use a mounting bracket which would consist of both part # 18140 and # 18144.
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• Adapter Availability for Going From Euro 7-way to American 4-Way
  Bascially, there is no easy way to convert the European 7-Way to a US 4-Way. We do not carry any kind of adapter that you could use. You are left with 2 options. First, you would install a separate wiring harness which would be the easiest. Or, you could attempt to fabricate an adapter. You would need to use a converter, # RM-732. The red wire on the input side would attach to the brake light wire on the vehicle wiring. The white wire grounds to the frame. The yellow wire will attach...
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• Matching Wishbone 4-Way Wiring to Vehicle that Uses Standard Wiring Configuration
  The configurations you described match two different styles of 4-way wiring. Wishbone 4-way wiring where a running light circuit wire is ran to either side of the trailer (yellow/brown and green/brown on the trailer), and then standard 4-way wiring where there's only one running light circuit wire like what's on your Blazer. The colors should match color for color in the rewiring process. The yellow/brown and green/brown wires need to run to the single brown wire pin of the Blazer wiring....
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• Troubleshooting a Weak Right Turn Signal on a Trailer Towed by a 2010 Toyota Tacoma
  What you described sounds exactly like a ground problem. Pretty much anytime there is bizarre tail light behavior its a ground issue somewhere. I would check the ground of the right light assembly to see if there is any obvious issues that need to be fixed like corrosion, or broken, loose wires. Chances are it is not the vehicle side of the trailer harness, but you could get a circuit tester like our # PTW2993 and test the circuits individually to rule them out. I attached a video on...
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• Troubleshooting No Brake Lights on Trailer when Towing with a Motorhome
  It sounds like you have separate tail lights on your motor home. Meaning that the stop/tail lights are not on the same bulb as the turn signals, and that your current trailer wiring is set up for combined tail light wiring. We have a converter that will need to install onto the wiring of your motorhome so that the signal will be split appropriately. You would want a Vehicle to Vehicle Taillight Converter # 118158. To wire it in you will need to take the right turn/stop circuit and run...
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• Adding 4-Pole Flat Trailer Connector to Motorhome
  We don't offer a plug and play type adapter that would do this, but you could add a 4-pole flat connector using # 18002. You'd simply tap the 18002 into the wiring feeding the existing 4-pole. Instead of the quick-connectors, I'd recommend using butt connectors like # DW05744-10 instead, this would make for a more secure connection. The 18002 would wire to the existing wiring feeding the round 4-pole connector color for color.
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• Trailer Brake Lights Not Working on a 1999 Chevy Silverado 2500
  It could just be a fuse on your 1999 Chevy 2500. Check the owner's manual and fuse panel lids to see if there is a separate fuse for trailer brake lights. It could also be a stop light or CHMSL fuse that is blown. If Your 1999 Chevy is an actual Silverado and not a C/K series with the Silverado trim then it will have separate turn signal circuits from the brake lights (1999 was a slit year so there were both C/K series and Silverados which is the name Chevy started using for their trucks...
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• How to Make an Adapter to Go From European 7-Way to American 4-Way
  Basically there is no easy way to convert the European 7-Way to a US 4-Way. We do not carry any kind of adapter that you could use. You are left with 2 options. First, you would install a separate wiring harness which would be the easiest. Or, you could attempt to fabricate an adapter. You would need to use a converter, # RM-732. The red wire on the input side would attach to the brake light wire on the vehicle wiring. The white wire grounds to the frame. The yellow wire will attach to...
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• Availability of 6-way and 4-Pole Trailer Connector
  We do offer a 6-way/4-pole connector, part # 37175. This is meant to be an adapter that would plug into an existing 4-pole. If your vehicle already has a functional 4-pole, you'd just plug it into the adapter, and you'd have 3 wires remaining. The blue wire would connect to the brake controller output circuit, the red wire would carry the 12-volt accessory feed from the battery (run through a # 9510 circuit breaker) and the white wire would ground to the vehicle frame. If you don't already...
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• Troubleshooting Trailer Wiring that Doesnt Function After Install on 1987 Nissan Truck
  First thing you should do at this point is test the 4-way of the wiring harness with a circuit tester part # PTW2993 for voltage on all of the right pins when the taillight signals are being applied. Just like in the video I attached. If the voltage checks out there but the trailer lights still don't function right then the problem is on the trailer wiring. That would mean that problem is either due to a ground issue or a short issue. Make sure that the trailer side connector is clean...
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• Installing 4-Pole Trailer Connector on 2000 Chevy Slilverado
  Are you speaking of the wiring harness located above the spare tire? The harness is wrapped in wire loom, and should contain a yellow wire (left turn/brake), dark green wire (right turn/brake), brown wire (running lights) and a white ground wire. Peel back a bit more of the loom, and you should find a light blue and a light green wire. The light blue provides a signal for a third brake light if you installed a camper shell and the light green wire is for the reverse lights. A typical 4...
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• Brake Controller Installation 1988 Ford F-350
  Ford didn't start equipping their trucks with the plug-and-play brake controller provision until the 1994 model year, so you'll need to hardwire the controller. This is a pretty simple process. First, you'll need to choose a controller. I prefer a proportional controller like the Tekonsha Primus, part # TK90160. A proportional controller will sense the rate that the tow vehicle is braking, and will send the appropriate amount of voltage to the trailer brakes so the trailer and tow vehicle...
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• Will the Draw-Tite Class III 75140 Trailer Hitch fit a 2001 Dodge 3500 Van
  Yes, the Draw-Tite class III part # 75140 Trailer Hitch will fit your Dodge van. I went out to our warehouse and measured the mounting holes and they are 40 inches apart, measured on center. To complete your towing set-up, you might need the following: 4 pin wiring harness # 18002 Drawbar # C45010 2 inch trailer ball # 63845 1-7/8 inch ball # 19260
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• Installing 4-Pole Trailer Connector on 1986 Chevy C/K Series 1 Ton Pickup
  On the 4-way plug, yellow is left turn/brake, green is right turn/brake, brown is running lights and white is the ground. On your truck's harness, the color code should be pretty much the same, but the light green wire is likely to be the ground. I'd recommend using a circuit tester like part # PTW2993 to confirm. Have a helper activate each turn signal function and the running lights as you check the wires with the tester.
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• Trailer Brake Lights Not Working After Installing New 7-Way on 2003 Dodge Durango
  If the brake lights are not working but the turn signals are then you may have a blown stop light or CHMSL fuse on your 2003 Dodge Durango. Check the owner's manual for the fuse locations and for tow package fuses to check to see if any are blown. The tow package wiring on the Durango is already converter so the tail light wiring won't have anything to do with the trailer connector wiring. But if you really wanted to you could use # 118334 that plugs in line with the tail light wiring...
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• 4-way Wiring Recommendation for a Wishbone Wired Boat Trailer
  What you have is a wishbone 4-way that seems to have a few circuits run to the ground circuit (the jacketed circuit that has the 2 white wires plus the green wire with the white tracer). What you could use would be a 20 ft. Wishbone 4-Way Trailer Wiring Harness # A20WB. This has the wishboned running light circuit. Aside from that you would need to run all the wires to the ground circuit of the # A20WB. Basically you will need to run the wires all together from each circuit of your boat...
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