What Are Common Subaru Electrical Issues?

The Subaru is a very popular vehicle. It has a reputation for being reliable and capable of taking on some tough terrain, but it’s still a car and thus susceptible to the same problems as any other automobile. When it comes to the electrical system, many things can go wrong with your Subaru. If you’re experiencing one of these problems, you’ll want to address them right away, so they don’t end up costing you more down the road.

Electrical System Problem

The electrical system in your Subaru is a complex system that relies on many components working together to keep everything running smoothly. If one of these components fails, it could cause a safety issue for you and other drivers on the road. The best way to prevent this is by investing in routine maintenance at your local Subaru car dealership or with a trusted mechanic who specializes in Subarus.

Starter And Battery

The starter and battery are usually the first things to go on a Subaru. They can be tested with a multimeter, an inexpensive electrical testing tool plugging into the car’s diagnostic port. The battery should have at least 10 volts of juice when you turn on your ignition, while the starter should crank over smoothly when commanded by your ignition switch.

If these tests reveal that either component has failed, you’ll need to replace them before trying to start your car again. It’s important to avoid jumping from another vehicle because this could damage your new components!

Engine Management Relay

The engine management relay is a small electrical component that controls your Subaru’s ignition system, fuel injection, and other functions. It’s located on the firewall of your vehicle, just behind where you would normally place your left foot when driving. The engine management relay looks like a small black box with wires coming out of it.

The engine management relay works by connecting two wires that allow electricity to flow from one to another and complete an electric circuit. The wiring inside the device is designed so that when current flows through it once, it opens up an electrical circuit or completes a loop in this process. This means that you must use both poles or terminals on this device if you want to test them individually or replace one without having issues with starting up your car again later on down the road!

Body Control Module (BCM)

The Body Control Module (BCM) is the main computer in your vehicle. It controls many of the critical functions of your car, including the engine, transmission, climate control, and more. The BCM is located under the dash on most vehicles and can be accessed by removing six to eight screws from an access panel on the driver’s side knee area.

The BCM can also be diagnosed using a scan tool or simply storing various diagnostic codes in its memory. The procedure to replace it will vary depending on what type of Subaru you have.

ABS Light Is On

ABS stands for the anti-lock braking system. This system is designed to help you stop your vehicle safely in an emergency. The ABS light will illuminate when the ABS system is functioning properly, but if you see that the light is on and flashing, it means that there may be a problem with the system.

ABS works by monitoring wheel speeds and applying pressure to each wheel individually. If one or more wheels begin to slip, additional pressure will be applied until they are back under control again. If the brakes are pressed too hard, the ABS pump pumps fluid through valves in order to decrease brake fluid pressure and prevent damage from overheating brakes (which can cause them to seize).


We have covered a lot of information in this article and hopefully, it has been helpful to you. If you are having problems with your Subaru’s electrical system, we recommend that you take it to an expert who can diagnose the issue for you. They will be able to tell whether or not the problem is related to an electrical issue or something else entirely.