2 Pole Starter Solenoid Wiring Diagram

A starter solenoid is an important electrical component in your car’s starting system. It controls the flow of electrical current from the battery to the starter motor. The wiring diagram of a 2 pole starter solenoid usually consists of two large terminals and two small terminals. The large terminals are for the battery and starter motor cables, while the small terminals are for the control circuit.

How Does a Starter Solenoid Work?

The starter solenoid is an electromagnet that is activated when you turn the ignition key. It pulls a plunger towards the electromagnet, which connects the battery to the starter motor, allowing it to turn the engine. When the key is released, the solenoid disengages the plunger, and the connection to the starter motor is broken.

The solenoid also has a built-in switch that allows electrical current to flow to the ignition system. It is important to note that the solenoid is not directly connected to the starter motor. Instead, it acts as a bridge between the battery and the starter motor.

Wiring Diagram for a 2 Pole Starter Solenoid

A typical 2 pole starter solenoid wiring diagram looks like this:

Terminal Description
Large Terminal 1 Connects to the positive terminal of the battery
Large Terminal 2 Connects to the starter motor
Small Terminal 1 Connects to the ignition switch
Small Terminal 2 Connects to the ground

The wiring diagram shows that the positive terminal of the battery is connected to one of the large terminals of the solenoid. The other large terminal is connected to the starter motor. The small terminals of the solenoid are connected to the ignition switch and ground.

How to Wire a 2 Pole Starter Solenoid?

Wiring a 2 pole starter solenoid is a simple process. Here are the basic steps:

Step 1: Preparation

Ensure all electrical connections are disconnected from the battery before proceeding with the wiring process. This is very important to avoid electrical shocks or damage to the electrical components.

Step 2: Locate the Solenoid

Locate the starter solenoid in your vehicle. It is usually located near the battery or the starter motor.

Step 3: Identify the Terminals

Identify the terminals on the solenoid. The two large terminals are for the battery and the starter motor cables, while the two small terminals are for the control circuit.

Step 4: Connect the Cables to the Solenoid

Connect the battery cable to the large terminal on the solenoid that is not connected to the starter motor. Connect the starter motor cable to the other large terminal on the solenoid.

Step 5: Connect the Control Circuit Wires to the Solenoid

Connect the wire from the ignition switch to one of the small terminals on the solenoid. Connect the ground wire to the other small terminal on the solenoid.

FAQs

What is the function of a starter solenoid?

A starter solenoid controls the flow of electrical current from the battery to the starter motor. It is an electromagnet that is activated when you turn the ignition key.

What are the symptoms of a faulty starter solenoid?

The most common symptoms of a faulty starter solenoid are a clicking noise when you turn the key, difficulty starting the engine, and intermittent starting problems.

How do you test a starter solenoid?

You can test a starter solenoid using a multimeter. Set the multimeter to the ohms setting and connect the positive lead to the battery cable terminal on the solenoid and the negative lead to the starter motor terminal. If the solenoid is working properly, the meter should read zero ohms. If it reads infinity, the solenoid is faulty and needs to be replaced.

Can you bypass a starter solenoid?

Yes, you can bypass a starter solenoid by connecting a jumper wire from the battery positive terminal to the starter motor terminal on the solenoid. However, this is not recommended as it can be dangerous and can cause damage to the electrical components.

How long does a starter solenoid last?

A starter solenoid can last for several years, depending on the quality of the component and the frequency of use. However, it is important to have it checked regularly to ensure it is functioning properly.

In conclusion, a 2 pole starter solenoid wiring diagram is an important component in your car’s starting system. It is important to ensure that it is properly wired to avoid starting problems and damage to the electrical components.