Wiring Diagram For A 7 Blade Trailer Plug

By | September 8, 2023

Wiring Diagram for a 7 Blade Trailer Plug

A 7 blade trailer plug is a type of electrical connector that is used to connect a trailer to a vehicle. It is also known as a "pin and sleeve" connector, and it is the most common type of trailer plug used in North America. The 7 blade trailer plug has seven terminals, each of which is assigned a specific function. The terminals are numbered from 1 to 7, starting from the top.

Terminal 1

is the ground terminal. It is connected to the vehicle's chassis.

Terminal 2

is the positive battery terminal. It is connected to the vehicle's battery.

Terminal 3

is the running light terminal. It is connected to the vehicle's running lights.

Terminal 4

is the left turn signal terminal. It is connected to the vehicle's left turn signal.

Terminal 5

is the right turn signal terminal. It is connected to the vehicle's right turn signal.

Terminal 6

is the brake light terminal. It is connected to the vehicle's brake lights.

Terminal 7

is the reverse light terminal. It is connected to the vehicle's reverse lights. The following diagram shows the wiring for a 7 blade trailer plug: [Image of a 7 blade trailer plug wiring diagram]

Wiring a 7 Blade Trailer Plug

Wiring a 7 blade trailer plug is a relatively simple task, but it is important to do it correctly to ensure that the trailer is properly connected to the vehicle. To wire a 7 blade trailer plug, you will need the following materials: * A 7 blade trailer plug * A 7 blade trailer harness * A wire crimper * A set of wire strippers * A voltmeter

Step 1: Connect the Ground Wire

The first step is to connect the ground wire. The ground wire is the black wire in the trailer harness. It is connected to the trailer's chassis. To connect the ground wire, you will need to find a suitable grounding point on the trailer. This could be a bolt or a stud that is connected to the trailer's chassis. Once you have found a suitable grounding point, strip about 1 inch of insulation from the end of the ground wire. Then, use the wire crimper to crimp a ring terminal to the end of the wire. Finally, connect the ring terminal to the grounding point on the trailer.

Step 2: Connect the Positive Battery Wire

The next step is to connect the positive battery wire. The positive battery wire is the red wire in the trailer harness. It is connected to the vehicle's battery. To connect the positive battery wire, you will need to find the positive battery terminal on the vehicle. This is usually a bolt or a stud that is located near the top of the battery. Once you have found the positive battery terminal, strip about 1 inch of insulation from the end of the positive battery wire. Then, use the wire crimper to crimp a ring terminal to the end of the wire. Finally, connect the ring terminal to the positive battery terminal on the vehicle.

Step 3: Connect the Running Light Wires

The next step is to connect the running light wires. The running light wires are the yellow wires in the trailer harness. They are connected to the vehicle's running lights. To connect the running light wires, you will need to find the running light terminals on the vehicle. These are usually located on the front of the vehicle, near the headlights. Once you have found the running light terminals, strip about 1 inch of insulation from the end of each running light wire. Then, use the wire crimper to crimp a female spade terminal to the end of each wire. Finally, connect the female spade terminals to the running light terminals on the vehicle.

Step 4: Connect the Turn Signal Wires

The next step is to connect the turn signal wires. The turn signal wires are the green wires in the trailer harness. They are connected to the vehicle's turn signals. To connect the turn signal wires, you will need to find the turn signal terminals on the vehicle. These are usually located on the front of the vehicle, near the headlights. Once you have found the turn signal terminals, strip about 1 inch of insulation from the end of each turn signal wire. Then, use the wire crimper to crimp a female spade terminal to the end of each wire. Finally, connect the female spade terminals to the turn signal terminals on the vehicle.

Step 5: Connect the Brake Light Wire


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