Why is My Car Subwoofer Not Working: [Fixes]

Getting a car subwoofer and fixing it in a car to enjoy the shaking bass response is next-level entertainment. It can save us the boredom of long boring routes and help avoid the annoyingness of traffic and long queues at gas stations.

However, considering a subwoofer is a technology-oriented device that runs with a power supply and comes with a fair share of wirings to make it operate, it is safe to say it can stop while working or generate 146 types of other issues.

Like your home theater system, car sound systems, mainly subwoofers, do not promise stable operations for a long time unless you maintain them and satisfy their time-to-time requirements. In addition, if your best car subwoofer is not working or has stopped working out of the blue, there must be a reason, which can be technical or non-serious. So, if you frequently face the “not working” or “stopped working” issue with your car subwoofer, this article is for you.

First, take a deep breath because there is still hope. We will explore the potential reasons behind the subwoofer not working and their solutions to save you some extra bucks. Let’s get started.

The Car Sub Stopped Working – All of a Sudden

There is no way a subwoofer would stop working without any problem. You must be missing something because every detail matters here.

First, check the connectivity. See if the wirings are causing any trouble. The sub should be connected to the wire, and the wires have a stable connection with an amp or receiver. If you think the wires are connected properly to their respective areas, grab the ohm meter.

You should know how to read on an ohm meter to take help from your skilled friend. Besides, the impedance of the wire should be between 4 to 8 Ohm, but it never has to show zero. However, if the speaker impedance does not show anything close to 4 or 8 Ohms, the coil is blown and needs replacing.

Speakers are Working, But Sub Stopped – What’s the Reason?

You may face another scenario where the speakers are working at their full potential, but the sub stops responding; then, it’s time to wear the investigation hat again and diagnose the problem with us.

  1. Again, get an ohm meter
  2. Measure the wire impedance
  3. Ensure the wire connections are proper and at a place
  4. Also, check the quality of the wires and whether they are tight or loose.
  5. You know the stats, but if it’s near zero, then you should know there is a short happened
  6. You may need professional help in replacing the coils

Why is the Car Subwoofer Not Working?

After highlighting the main issues with the sub that usually happens that manipulate into thinking our sub is broken, let’s find the real culprits and deal with them.

1. Magnet Failure

Subwoofer cones are linked to the permanent magnet. Not an electromagnet, it’s under the cone, and it’s more like the coil of wires in an electromagnet. The electromagnet now drives the cone in conjunction with the permanent driving magnet due to current and voltage entering its circuit via incoming signals. A result of this is a noticeable increase in volume.

If the driving magnet fails, it won’t interact with the electromagnet. It will affect the number of magnetic poles in the circuit, preventing precise or no sound reproduction at all.

2. Short Circuit

The most common and predictable reason the sub suddenly stopped working is the short circuit. Since some wires are involved that require a certain amount of power to operate a subwoofer, a mishap like breaking in can happen.

Short circuits usually happen when the wires don’t deliver adequate signals to the sub, making it crawl while performing and eventually stopping operations. So, don’t forget to notice the signs of a short circuit and ensure that the coil is functioning perfectly.

3. Power Requirements

When we talk about power in a sub, the idea of coil makes a home in our heads.

Get ahold of the subwoofer’s coil to see if it’s getting enough current and passing signals. If not, the permanent driver magnet won’t be able to make the field it needs to work, and the sub won’t work the way it was meant to.

Solutions to Fix the Car Subwoofer

After digging deep into the possible culprits of the subwoofer that might stop working, let’s explore the solutions so you get back to enjoying the precise low-end frequency to boost your music listening experience.

1. Check All Wires

Start with the sub’s speaker, amp, and receiver wiring. They must be connected and sturdy. Wires from the sub’s back run to the amplifier or receiver’s back.

If the sub is linked to speakers, inspect the entire wiring. Before utilizing any device, replace any damaged or worn-out wires. Even after replacing them, run a few safety tests.

2. Inspect Fuse

Good subwoofers have standby LEDs. When powered, this glow. If this LED is off, you must connect the sub to a surge protector, wall socket, or power strip. If the prongs aren’t linked properly and don’t show any signal, you can assume that the device is not getting enough power.

You should also double-check all switches along the way, beginning with the ones in the walls and ending with the ones in the power strips and any additional outlets along the way. There may only be one bad switch to blame, and you may check this by using a different power outlet to run the subwoofer.

3. Double-Check the Settings

After double-checking that the cables and plugs are securely attached, and in good working order, it’s time to look at the configuration. Your amplifier or receiver is needed for this. Verify that they have not been tampered with or reset by accident. Verify the subwoofer’s output levels and the audio sources you’ve selected.

4. Reset the Sub

If you can’t figure out the problem and are certain, it could be related to volume or another configuration setting. Resetting is the safe way to get the device on track. Reset the amp or receiver, connect it again to the sub, and ensure it gets enough power.

Please turn it on and run a few tests. However, if you cannot convince the device to recover, it’s time for a replacement.

Frequently Asked Questions (FAQs)

Why is there no sound coming from my subwoofer?

·         Check the volume
·         See if the wires are connected properly
·         Make sure you don’t smell burnt wires
·         Reset the device
·         Read the amp and check if there’s enough power running
If all the above points meet requirements, get in the article to read potential problems and their solutions.

Ending Thoughts

There could be several reasons behind a subwoofer deciding not to produce enough or no bass. It is important to know about the device beforehand because it could save you from panicking since we cannot blindly trust technology.

This article can help you determine what could happen to your subwoofer and how you can manage to put it to work. However, we suggest you keep a keen eye on the wirings, and if the sub is receiving enough power, it can continue to work seamlessly and not surprise you with short circuits or common issues.

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