Remove the fuse from its holder. In some cases you may need a small screwdriver to unscrew the fuse holder cap. Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.
Keep your ears (and eyes) open for some of these issues:
Distortion at Medium Volumes. The hissing or fuzzy sound of distortion is a common sign of partially blown speakers.
No Vibration.
Lack of Range.
Rattling and Popping Sounds.
Car Radio Isn’t Working.
Infinite Impedance.
Repairing Minor Damage.
How do you diagnose a car radio problem?
Use a multimeter to test the stereo’s two power wires. This will help you determine if there is broken or faulty wiring. One power wire provides power to the stereo’s memory and is always hot. While the other wire is only hot when you turn on the ignition.
What can cause my radio to stop working? – Related Questions
What causes blown radio fuse?
Overloaded Circuit
The most common cause of a blown fuse is when something draws too much power from the circuit. This is most often caused by either too many lights or from using too many plug-in appliances at once.
What causes a radio to have no sound?
Check each set of wires and speakers to be sure no wire or lead is connected to a chassis ground. The radio will see this as a short and turn off the internal amplifier causing the on but no sound issue. Each speaker connected to the radio needs dedicated positive and negative leads from the radio to each speaker.
How do you fix a car radio that has no sound?
How can you fix a car stereo that has no sound?
Make sure the volume is up on the stereo and any input device you’re using, like your phone.
Check the stereo settings to ensure everything looks correct and no outputs are at zero.
Try a different audio source or auxiliary cable.
How do I reset my radio in my car?
Turn your car on, but do not start the engine. Turn the radio off. Hold the radio power button down for a few minutes until it resets.
Test the sound by unplugging the sound cables or colored RCA wires.
Hissing and crackling are often easy to fix by rearranging the wires or getting complimentary speakers.
If the noise doesn’t stop, then you probably have a faulty amp to replace.
What do you do when your FM radio stops working?
FM radio not working on Android?Try these solutions
Update OS to the latest software version.
Reboot/Restart your phone.
Clear app data and cache of Radio app.
Download a third-party radio.
Try to visit the official service center.
Conclusion.
How do I know if my car radio is getting power?
Why does my radio have power but wont turn on?
The most common reason why a car stereo won t turn on but it has power, is a blown-out fuse. A sudden power surge can damage a fuse. A faulty lighter socket or a battery change might be to blame for this.
Why does my car radio not work after changing battery?
The most common reason for a car radio to stop working after the battery has gone completely dead is that the radio has an anti-theft “feature” that kicks in whenever battery power is removed. When that happens, all you have to do is enter the right car radio code, and you’re back in business.
What does a blown car radio fuse look like?
Is there a fuse that controls the radio?
A car radio will have at least one fuse to protect the unit from things like power surges or other electrical issues. If too much current is sent to the audio system, this fuse will blow out and disconnect the circuit to save the main radio. On newer models, there are a variety of fuses for the entertainment system.
That way, if you’re driving with a failing alternator, you’ll lose power to your radio (or other nonessential accessories) before losing power to your headlights.
Can a weak battery cause radio to not work?
Can a Bad Battery Cause Electrical Problems? Yes, if your battery is underperforming it can cause systems within the vehicle to malfunction. A bad battery can also result in air conditioners, stereos and other applications not receiving enough power to function properly.
How does a car act when the alternator is going out?
The car tends to slowly lose power if the alternator has gone bad while the car is being driven. You’ll notice the headlights start to dim shortly before the car loses power and dies.