How to Open and Fix Your Subaru Power Antenna – A Step-by-Step Guide!

If you own a Subaru car with a power antenna, you might run into issues with it after some time of usage. It is understandable since this component will be exposed to various environmental factors, which can cause it to malfunction. The good news is, there are things you can do to resolve such problems, such as performing maintenance to your power antenna. This article will give you a step-by-step guide on how to open your Subaru power antenna and provide some helpful tips for troubleshooting common issues.

Understanding Your Subaru Power Antenna

Before you start working on your Subaru power antenna, it’s essential to first gain some understanding about this component. A power antenna system consists of several parts, including the antenna mast, antenna motor, and buttons for raising and lowering the antenna. With proper maintenance, this component can last for many years, providing you with clear radio reception for uninterrupted entertainment while driving.

What You’ll Need to Open Your Subaru Power Antenna

To open your Subaru power antenna, you’ll need several tools that are essential for the task. Some of these tools are:

  • Screwdrivers
  • Wrenches
  • A multimeter
  • Electrical tape
  • Soldering Iron
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Step-by-Step Guide to Open Your Subaru Power Antenna

Ready to start working on your power antenna? Follow these simple steps to open it up and check for issues:

  1. Turn off your vehicle’s engine and disconnect the negative terminal of the battery.
  2. Locate the power antenna system and carefully unscrew any nuts and bolts that cover it.
  3. Next, locate the wiring harness that attaches to the power antenna and carefully disconnect it.
  4. Once the wiring harness is disconnected, carefully remove the mounting bolts and remove the power antenna.
  5. After removing the power antenna from your Subaru, remove the cover and gearbox of the antenna motor to inspect it thoroughly.
  6. Check for any signs of wear and tear in the power antenna’s components. You may need to replace any corroded or broken components.
  7. Sometimes, the issues can be caused by a faulty motor. You can use a multimeter to test your motor’s continuity and resistance to check if it’s still working correctly.
  8. If your motor is still working correctly, the issue might just be with the antenna mast. Examine it if it’s damaged or bent. You can opt to replace a broken antenna mast or straighten any bent components if possible.
  9. Once, you’ve determined the root cause of your issue, replace any worn-out or damaged components, and put everything back together. Test your power antenna before replacing any covering or casings.

Troubleshooting Common Power Antenna Problems

If you encounter issues with your Subaru power antenna, there are a few common problems you can troubleshoot yourself before seeking professional help:

  • Stuck Antenna: If your antenna is stuck in a particular position, it might be due to a lack of lubrication or debris that inhibits its movement. Try to clean the antenna mast or apply some lubricant.
  • Antenna Motor Not Working: If you can’t seem to raise or lower your antenna, the issue could be with the motor. Check all the electrical connections starting from the fuse panel to the power antenna system. If all the connections are okay, your motor might be burnt, or the antenna motor relay might have malfunctioned.
  • Weak Signal: Suppose your radio reception is weak, and you have checked all connections and still can’t pinpoint the exact cause of the problem. In that case, it could be due to a broken or shorted antenna mast. You can replace your antenna mast promptly if this is the root cause.
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Frequently Asked Questions (FAQs)

Q: How long can I expect my power antenna to last before experiencing any issues?

A: The lifespan of a power antenna depends on various factors, such as the environment, usage, and maintenance. On average, a power antenna can last for more than five years, given proper maintenance.

Q: Do I need to take my car to a mechanic to fix my power antenna?

A: No, you don’t need to take your car to a mechanic to fix your power antenna if you have the tools and are confident in working on your car. This article provides a step-by-step guide to help you do it yourself.

Q: How can I prevent power antenna issues?

A: You can prevent power antenna issues by taking proper care and maintenance of your power antenna. Ensure that you lubricate any moving parts, tighten all connections, and keep it clean from debris.


Your Subaru power antenna is a crucial component in keeping you entertained while commuting. By following the steps outlined in this guide, you can open it up and troubleshoot issues yourself. Remember, always take the necessary precautions, wear appropriate safety gear, and consult a professional when you’re not sure what you’re doing. With proper care and maintenance, you can expect your power antenna to last a long time, providing you clear radio reception for your listening pleasure.

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Peter Banks

With years of experience as a professional mechanic and Subaru specialist, Peter is one of the most respected members of our team. He's written several articles on Subaru maintenance and repair, and his advice and tips are always practical and helpful. When he's not working on cars, he enjoys cooking and trying out new recipes.

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