Question about Kenwood KDC-MP438U Car CD/ MP3 Player

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"PROTECT" is constantly displayed on the screen of my kdc-mp438u

The "protect" error continues to display even after I have reset the unit.

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  • putey Jan 10, 2009

    MP438U displays "PROTECT" on both 1996 & 1999 bonneville. Best Buy suggested disconnecting orange illumination wire. That did not work. Seeing the last post that its almost always the speaker connection, how come the speakers work just fine with orginal stereos installed.

  • dis0nesl0wbo Jan 27, 2009

    protect

  • ElFredy Feb 05, 2009

    02-05-09 The Stereo Was Playing Good And All Of A Sudden The PROTECT Showed Up. No Other Funccion Was Available Or Sound.

  • kingdarius Feb 06, 2009

    What speaker wires are you talking about

  • Anonymous Mar 09, 2009

    My stereo was working well, but suddenly the "PROTECTED" message is there, bugging me. I can't fix it.

  • Jon Longtin Mar 10, 2009

    what if its not the speakers, because i completely unhooked my speakers and it still wont work

  • Anonymous May 21, 2009

    radio stays in protect mode

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You need to unplug the unit from the back and find the problem. Usually, it is almost always your speaker connections. Once you find the problem within the speakers, plug it back in and it resets it.

Posted on Jan 05, 2009

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2 Answers

COMO QUITAR PROTECT ESTEREO KENWOOD KDC-MP642U


En estos modelos quedan grabados los errores de DC en el eeprom y se tiene que limpiar y estos son los pasos para este modelo:

Mientras que el display muestre PROTECT presiona el y sosten el 3 y 6 y luego presiona el RESET mantelos presionados por unos dos o tres segundos y luego suelta el RESET y despues de uno o dos segundos suelta los otros switches.
El display debe mostrar:
DC ERR

Presiona el 1 y el display mostrara
DC1 ERR

Presiona el 1 y sostenlo por par de segundos y el display mostrara
DC1 OK

Presiona el 2 y el display mostrara
DC2 4

Presiona el 2 y sostenlo por un par de segundos y el display mostrara
DC2 0

A este punto el eeprom ya esta limpio y nada mas presiona el RESET y el disply debe mostrar STANDBY

Espero que esta informacion te sea util y avisa si te funiona

Suerte y saludos

Jan 27, 2013 | Kenwood KDC-MP642U

1 Answer

Kenwood car kdc mp3036 player is displaying protect give me reset code


what did you try manul ,unplug it ,onhook batt. one of them should work

Jun 04, 2012 | Car Audio Receivers

1 Answer

Reset security code


My Kenwood KDC-MP438U Says PROTECT, and I can't figure out how to get it to work

Jan 10, 2010 | Kenwood KDC-MP228 CD Player

2 Answers

On my kenwood kdc mp438u i tried everything it said to do but it keep saying protect


Could be a short circuit on your speaker output, try disconnecting all 4 speaker wires and then power up. Otherwise its the audio amplifier circuit that needs to be replaced ( audio IC )

Sep 27, 2009 | Kenwood KDC-MP438U Car CD/ MP3 Player

1 Answer

" USB ERROR "


Hello kenwood12312,

With the receiver OFF, remove the USB device then turn the power ON. If the same display is repeated, use another USB device. Remove the USB device without entering the remove mode. If this does not work, try resetting the receiver. Press the "reset" button just above the AUX INPUT. This will return the unit to factory default settings. If these steps fail and you still get the USB error, the receiver is faulty and needs service.

Hope this helps.

May 20, 2009 | Kenwood KDC-MP438U Car CD/ MP3 Player

2 Answers

Kenwood KDC-MP438U


Solution is simple and no code is needed. Make sure all wirw are secures and not opening spliced. Ones verifying, make sure radio is turned off and reset the protect button.

The Protect Button is pin hole size and is located right above the headphone jack. Hence all shpuld be good from there on.

Reset

Mar 10, 2009 | Kenwood KDC-MP438U Car CD/ MP3 Player

1 Answer

Kenwood KDC-MP438U "USB ERROR"


IF YOU DID NOT PRESS THE RESET BUTTON NEX TO THE USB PLUG, DO IT. IT WILL REINITIATE THE DEVICE TO THE FACTORY; YOU WILL HAVE TO ADJUST THE CLOCK.
I DID BECAUSE IT WAS WORKING AT FIRST.( PAGE 3 OF THE MANUAL)
CLAUDE

Dec 20, 2008 | Kenwood KDC-MP228 CD Player

1 Answer

Protect mode Kenwood KDC MP438U in dash reciever


Anytime there is a short circuit or your battery down low enough you will recieve this signal. If you press the little "reset button" using a small pin or screwdriver your unit should reboot without the "PROTECT" signal. If seeing this "PROTECT" sign is a result of jumping your car, this will fix it. If the signal persists, then there is still a short circuit and you need to check your connection with the battery. Most likely it is touching the chasis or some othere metal.

Jun 27, 2008 | Car Audio Receivers

6 Answers

Security Code for Protect mode


Turn on the car so the radio is flashing "Protect." Look on the front / removable face of the stereo. On it you will find a small round hole - that's a reset button. Find a small paper clip, unfold the clip and stick it gently into the hole. The "Protect" will stop flashing, and Kenwood will be displayed. Unfortunately all your settings/presets will be gone, but at least the stereo is working again!

Apr 30, 2008 | Kenwood KDC-W3534A CD Player

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