4 Pole Starter Relay Wiring Diagram: Everything You Need to Know

When it comes to wiring a starter relay, things can get a bit confusing. With so many different types of starter relays available, it’s easy to get lost in the jargon and technical details. However, if you’re looking to wire a 4 pole starter relay, you’re in the right place.

What is a Starter Relay?

Before we dive into the specifics of a 4 pole starter relay, it’s important to understand what a starter relay is and why it’s important. A starter relay is a device that allows a small current to control a larger current. Essentially, it acts as a switch that allows power to flow from the battery to the starter motor.

Without a starter relay, you would need a much larger switch to handle the current required to start your engine. This would make your wiring much more complicated and difficult to manage. Additionally, a starter relay helps to protect your wiring by preventing damage from overheating or overloading.

What is a 4 Pole Starter Relay?

As the name suggests, a 4 pole starter relay has four connections that are used to control the flow of current from the battery to the starter motor. The four poles are typically labeled 30, 85, 86, and 87.

Pole 30 is the connection to the battery. Pole 85 is the connection to ground. Pole 86 is the connection to the small control circuit, such as the ignition switch. Finally, pole 87 is the connection to the starter motor.

Wiring a 4 Pole Starter Relay: Step-by-Step Guide

Now that you understand the basics of a 4 pole starter relay, let’s take a look at how you can wire one in your own vehicle. Follow these steps to get started:

Step 1: Gather Your Materials

The first step to wiring a 4 pole starter relay is to gather all the necessary materials. Here’s what you’ll need:

  • 4 pole starter relay
  • Wire cutters and strippers
  • Electrical tape
  • Ring terminals
  • Wire connectors
  • Wires in appropriate gauges

Step 2: Disconnect the Battery

Before you start any electrical work, it’s important to disconnect the battery. This will prevent any accidental shocks or shorts.

Step 3: Connect Pole 30 to the Battery

Connect one end of the wire to the positive terminal of the battery and the other end to pole 30 of the starter relay. Use a ring terminal on the battery end and a wire connector on the starter relay end.

Step 4: Connect Pole 85 to Ground

Connect a wire from pole 85 of the starter relay to a good ground. This could be the engine block or another metal component in your vehicle. Use a ring terminal on the ground end and a wire connector on the starter relay end.

Step 5: Connect Pole 86 to the Control Circuit

Connect a wire from pole 86 of the starter relay to the control circuit, such as the ignition switch. Use a ring terminal on the control circuit end and a wire connector on the starter relay end.

Step 6: Connect Pole 87 to the Starter Motor

Connect a wire from pole 87 of the starter relay to the starter motor. Use a ring terminal on the starter motor end and a wire connector on the starter relay end.

Step 7: Test the Circuit

Once all the connections are made, it’s important to test the circuit. Reconnect the battery and turn the ignition switch to the “on” position. You should hear the starter motor engage and the engine should start.

FAQ

What is the purpose of a starter relay?

A starter relay acts as a switch that allows power to flow from the battery to the starter motor. It allows a small current to control a larger current and protects your wiring from damage.

What are the four poles on a 4 pole starter relay?

The four poles on a 4 pole starter relay are typically labeled 30, 85, 86, and 87. Pole 30 is the connection to the battery, pole 85 is the connection to ground, pole 86 is the connection to the small control circuit, and pole 87 is the connection to the starter motor.

What materials do I need to wire a 4 pole starter relay?

To wire a 4 pole starter relay, you’ll need a 4 pole starter relay, wire cutters and strippers, electrical tape, ring terminals, wire connectors, and wires in appropriate gauges.

What is the step-by-step process for wiring a 4 pole starter relay?

The step-by-step process for wiring a 4 pole starter relay includes: gathering your materials, disconnecting the battery, connecting pole 30 to the battery, connecting pole 85 to ground, connecting pole 86 to the control circuit, connecting pole 87 to the starter motor, and testing the circuit.

What should I do if my 4 pole starter relay isn’t working?

If your 4 pole starter relay isn’t working, there are a few things you can check. Make sure all the connections are secure and free of corrosion. Check the wiring for any damage or breaks. Finally, test the voltage at each connection to ensure that power is flowing correctly.

Connection Wire Color Wire Gauge
Pole 30 Red 10
Pole 85 Black 10
Pole 86 Yellow 18
Pole 87 Blue 10

Now that you know everything you need to wire a 4 pole starter relay, you can confidently tackle this project on your own. Just remember to follow the steps carefully, use the right materials and tools, and test your circuit thoroughly before starting your engine. With a little patience and know-how, you’ll be up and running in no time!