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Radio is stuck on flashing protect - Kenwood Car Speakers & Subwoofers

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Sounds like you output IC is fried

Posted on Oct 13, 2008

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Kenwood KDC-MP342U turns on but just keeps saying "reading" when in usb mode. I recently had it go into protect mode and I took the stereo out and checked the wires and re-attached the ones that...

it sounds like the USB connector on the face place of the radio has a cracked solder joint. i suggest taking it to a person that know how to solder small objects. your Kenwood has a one year manufacturer warranty it could be some thing to check in to.

Jun 18, 2011 | Car Speakers & Subwoofers

1 Answer

I hit a bump and now my stereo is flashing protect. I have reset it and unplugged and plugged it. Idk what happened! HELP!

A likely cause would be a loose wire such as the power connectors that belong to the radio. check the full connection that is connected to the vehicle battery.

Jun 04, 2011 | Car Speakers & Subwoofers

1 Answer

My radio won't do anything, and it constantly flashes protect on the screen. What does that mean?

It means you either have a short in your speakers or speaker wires, a bad speaker or the output IC may be bad.

Apr 27, 2011 | Kenwood Car Speakers & Subwoofers

1 Answer

My Blaupunkt Buenos Aires 200 Radio has for the last 4 days been flashing (PROTECT) howw can i listen to FM radio again please?

First observe the radio device for pause buttons also known as protect that may have been accidentally enabled. Simple press button nknobs to unprotect the achieve broadcasts once more. Also, refer to the owners user manuals or guide for features.

Feb 04, 2011 | Blaupunkt Car Speakers & Subwoofers

1 Answer

I turned my car off and when I got back and turned the car back on the speakers made a weard sound for half a second when I put the key in the the radio started flashing protection. I tryed reseting it a...

try checking your speakers and speaker wires for grounds and/or shorts. make sure all your speakers are good.. if that all checks out, you may have a bad output ic inside the deck itself.

Oct 01, 2010 | Car Speakers & Subwoofers

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I turned on my radio and Protect is flashing on the screen. Nothing that I do makes this go away. Please help.

you have a crossed wire problem that will need to be fixed before the protect will drop off and allow you to use the stereo.

Sep 30, 2010 | Car Speakers & Subwoofers

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The kenworth radio has a button flashing saying protected and wont make a sound

Your unit is either locked with a code, or there is a short. If you have removed power before this problem happened then your radio is locked and you will have to call the manufacturer, if not then your speakers are shorted.

Aug 15, 2010 | Car Speakers & Subwoofers

1 Answer


Protect only comes on when an RCA is grounding out, speaker is blown or the speaker wires are shorting out. Check all your wiring on the head unit and see if all are insulated with tape or better and if there's an exposed wire, tape it up. Make sure that all connections are secured. Then double-check your fuses. Check all of your speakers and their wiring because going into protect mode is the units way of saying you have a problem with your speakers or wiring.

If your speakers and wiring all check out, disconnect your radio wiring harness, and then reconnect the harness. This resets your radio, and your radio should be working again.

If you need to enter the security code, try the default unlock code of 5227.

You can also try to reset your code if the default doesn't work. Try 'KCAR' or '3051'.

Jul 12, 2010 | Kenwood Car Speakers & Subwoofers

1 Answer

My car radio keeps flashing protect do i need a code

don't know what kind of radio you have, but usually if a radio is flashing protect it is because you have a short in the wiring, a bad speaker or a bad output ic.

Jun 18, 2010 | Car Speakers & Subwoofers

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