When it comes to the 2018 WRX, one of the most important parts of the car is the tail lights. Not only do they provide necessary lighting for driving at night, but they also give the car a unique look that sets it apart from other vehicles on the road. However, if you’re having issues with your tail lights, it can be difficult to figure out exactly what’s going on. That’s why we’ve put together this guide to the 2018 WRX tail light wiring diagram. Here, we’ll go over everything you need to know about how your tail lights are wired and what you can do to troubleshoot any issues you may be experiencing.
What is a wiring diagram?
Before we dive into the specifics of the 2018 WRX tail light wiring diagram, it’s important to understand what a wiring diagram is and why it’s useful. Essentially, a wiring diagram is a visual representation of how the electrical components of a particular system are connected. In the case of the 2018 WRX tail lights, the wiring diagram shows how the various wires and connectors are connected to each other, and how electricity flows through the system to power the lights.
Having a wiring diagram can be incredibly useful when trying to troubleshoot issues with your tail lights. By understanding how the wires are supposed to be connected and how electricity flows through the system, you can more easily identify where the problem may be and fix it accordingly.
The 2018 WRX tail light wiring diagram
Now that you have a basic understanding of what a wiring diagram is and why it’s useful, let’s dive into the specifics of the 2018 WRX tail light wiring diagram. This diagram shows how the various wires and connectors in the tail light system are connected to each other, as well as how electricity flows through the system to power the lights.
Here is a breakdown of the different components you’ll see on the 2018 WRX tail light wiring diagram:
Tail light assembly
The tail light assembly refers to the physical housing that holds the tail light bulbs. It includes the red plastic cover that sits on the back of the car, as well as the wiring that connects the bulbs to the electrical system of the car.
Turn signal bulbs
The turn signal bulbs are located within the tail light assembly and are responsible for indicating when you are turning or changing lanes. They are typically amber in color and blink rapidly when activated.
Brake light bulbs
The brake light bulbs are also located within the tail light assembly and are activated when you step on the brake pedal. They are typically brighter than the other bulbs and provide additional warning to other drivers that you are slowing down or stopping.
Reverse light bulbs
The reverse light bulbs are also located within the tail light assembly and are activated when you put the car in reverse. These bulbs provide additional lighting to help you see behind the car when backing up.
Ground wire
The ground wire is an important part of any electrical system. It serves as a pathway for electricity to flow back to the battery and complete the circuit. In the 2018 WRX tail light system, the ground wire connects to the metal frame of the car to complete the circuit.
Power source
The power source in the 2018 WRX tail light system is the car’s battery. The battery provides the electrical power necessary to activate the tail light bulbs and make them shine.
Troubleshooting common issues with the 2018 WRX tail light wiring diagram
Now that you have a basic understanding of the 2018 WRX tail light wiring diagram, let’s go over some common issues you may run into with your tail lights and how you can troubleshoot them using the diagram.
Issue: Tail lights won’t turn on
If your tail lights aren’t turning on at all, there may be an issue with the wiring or a blown fuse. To troubleshoot the issue, start by checking the fuse box located in the engine compartment. Look for the fuse labeled “tail lights” and check to see if it’s been blown. If it has, replace it with a new fuse of the same amperage and see if that fixes the issue. If the fuse isn’t the problem, consult the wiring diagram to see if there are any loose or disconnected wires that may be causing the issue.
Issue: Turn signals are blinking rapidly
If your turn signals are blinking rapidly, it’s likely that one of the turn signal bulbs has burned out. To fix the issue, consult the wiring diagram to identify which bulb has burned out and replace it with a new one.
Issue: Brake lights won’t turn off
If your brake lights won’t turn off even when you’re not pressing on the brake pedal, there may be an issue with the brake light switch. Check to see if the switch is stuck in the “on” position, and if it is, replace it with a new one.
Conclusion
Overall, understanding the 2018 WRX tail light wiring diagram is an important part of keeping your car in good working order. By knowing how everything is connected and how electricity flows through the system, you can more easily troubleshoot any issues you may be experiencing and fix them accordingly.
| Term | Definition |
|---|---|
| Wiring diagram | A visual representation of how the electrical components of a particular system are connected |
| Tail light assembly | The physical housing that holds the tail light bulbs and the wiring that connects the bulbs to the electrical system of the car |
| Turn signal bulbs | Bulbs located within the tail light assembly that indicate when you are turning or changing lanes |
| Brake light bulbs | Bulbs located within the tail light assembly that are activated when you step on the brake pedal |
| Reverse light bulbs | Bulbs located within the tail light assembly that are activated when you put the car in reverse |
| Ground wire | A pathway for electricity to flow back to the battery and complete the circuit |
| Power source | The car’s battery, which provides the electrical power necessary to activate the tail light bulbs |
FAQ
Q: How do I identify which bulb has burned out?
A: Consult the wiring diagram to identify which bulb corresponds to the side that’s not working. Typically, if your left turn signal is blinking rapidly, it’s the left turn signal bulb that’s burned out. If your right turn signal is blinking rapidly, it’s the right turn signal bulb that’s burned out.
Q: Can I replace a blown fuse with any amperage?
A: No, it’s important to replace a blown fuse with a new fuse of the same amperage to prevent damage to the electrical system. Consult your owner’s manual to determine the correct amperage for each fuse.
Q: How do I replace a brake light switch?
A: The process for replacing a brake light switch varies depending on the make and model of your car. However, in general, the brake light switch is located near the brake pedal and can be replaced by removing the old switch and installing a new one in its place. Consult your owner’s manual or a mechanic for specific instructions for your car.
