Making wire connections Almost every wire for your 7-pin plug must be spliced into the wiring for your truck. Attach the yellow wire to the wire for the left-turn and brake light. The 7 pin flat plug will fit into a 12 pin flat socket and work perfectly. Loosen the negative battery cable with a battery wrench, and then remove the negative battery cable from the negative battery terminal. I had one vehicle with a 12 pin socket and a trailer with a 7 pin connector and they played happily for years. Plus to top it all off, sometimes the small 7 pin round is rotated so that the yellow pin is at the top! Attach the purple wire to the wire that powers the reverse light. Okay, You can use it as your reference material only.
Depending on the model, the location may vary from inside of trunk to under the rear floor panel. Trim and connect a new wire to the existing wire. Guess what, the image of the round plugs has been rotated about 150 degrees: yellow should point up. Why did they do that? So if you have the choice, go flat! Ensure that all of the terminal screws are tight. Remove the soldering iron from the wire joint.
Hold the new wire parallel to the existing wire so that the exposed strands of each wire are next to each other. When I tried to reword the flat connector to the jet ski trailer I can get everything to work but the brake lights. Connect the brown wire to the wire for the running lights and connect the dark green wire to the wire for the right-turn signal. I would like your help in this matter! This drawing from Mark Bruss shows the relationship of the 7-round to 7-flat plugs and how only three wires are common. Hold the plug so that you are looking at it from the rear with the hinge for the front access door on top. Meanwhile, the round style has small round pins that are used to connect the two.
To determine how to wire up trailer lights, you need to know whether your vehicle has a factory-installed trailer package and whether a plug-and-play T-connector is available for it on the market. All lights worked fine, brake, rear lights and indicators and discovered when you unplug the connector from the car with the car locked alarm goes off. Ensure that you cover all bare wiring. Verify the harness color codes at each tail light. Simply sit in front of your beloved laptop or computer which is certainly linked to the Internet, you may get several unique fresh tips and you will use it for your needs. There is a lot wiring that you have to tie into your truck's wiring harness, but it is easier to do than it seems. Allow them to rest on the ground for now.
Disconnect the wiring from the taillight and set the taillight assembly aside. These plugs have 6 round contacts surrounding a center round pin. You can use a circuit tester to verify connections. All diagrams are as viewed from the Cable Side 12 Pin Flat This is an extension of the 7 pin flat. This vehicle-to-trailer wiring harness creates a standard trailer wiring connection by plugging into vehicle harness and tail light assembly, and then routing the 4-way harness to the rear end of a vehicle. Connect to the right-turn signal and the running lights.
Hold a soldering iron against the bottom of the wire joint. Wait for the solder to melt and wick through the wire strands. There is a lot of competition and confusion in the trailer world when it comes to connectors. If not an earth return, tape up well and ignore them. To properly make the connection use the following steps: Trim back the insulation on the existing wire.
Connect to the brake controller and route the black and blue wires. So it makes sense to hard-wire a common connector to a high-use trailer. They developed a universal trailer connector that has been used on their vehicles since the 1990s. This connector is commonly found on most light-duty trailers. Warnings A memory saver maintains a constant power supply to your vehicle's radio and computer systems when the battery is disconnected. Locate this wire where it comes out of the interior fuse box.
The other has round pins. Commercial Truck and TrailerWiring Diagram. The following instructions describe the wiring of a basic, traditional plug that is commonly used on pickup trucks. Not sure which is your case — if the indicators are swapped it sounds like the large plug. The remaining color is the ground wire. Tighten the screw at the left-center terminal.
Also sometimes the small 7 pin round is rotated so that yellow is on top. Refer to the wiring diagram for your truck and determine which wire in the harness for the left taillight assembly controls the left-turn signal and brake. Tighten the bolt to the specifications given in your manual. In this case, you will need a set of wiring taps and a pair of pliers. The below diagrams are for reference.