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Kenwood stereo security issue

Hi, I unplugged the battery to change it out, when I put it back the stereo was asking for a code which it has before and i've entered it before so i know it works. But this time when I enter it and hold down the knob the code dissappears and the radio does not come back up =( can you help me with this? Thanks

Mari

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Hi ta2mari

If you have a remote control for the deck then you can reset it following the instructions I have written up for you here. It will allow you to sort out the problem.

I am more than happy to answer any other questions you may have about it, just give me a hoy :) If you are still unsure, or have problems, then before you give a rating for this advice, please get back to me and we can try some more things.
Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards
robotek







Posted on Jun 13, 2008

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Posted on Jan 02, 2017

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1 Answer

What is EC code in kenwood a.c ?


  1. If your car battery died, your Kenwood stereo will ask you for a code. There are various ways to enter the security code; this depends on the model of your Kenwood stereo.
  2. Look in your manual and see what the security code is for your particular Kenwood stereo. There are common security codes on many Kenwood stereos. Kenwood claims security, but its stereos have many of the same security codes. Here are three common security codes: 1-2-3-4 (a code many Kenwood owners use), 3-0-5-1 (a common security code in Kenwood manuals) and KCAR (works on some Kenwood stereo models). You should have a code within the pages of your manual. Luckily, many Kenwood stereos have the same security codes.
  3. Enter the security code into your Kenwood radio. Method #1: During the code request mode, while holding the DISP key depressed, press and hold the "Volume UP" or "DOWN" key for three seconds until the " ... " display disappears. Enter the security code using your Kenwood remote. Method #2: Press the "Auto" and "Track Up" button on the face of radio at the same time until the four dash lines disappear. Enter the security code using your Kenwood remote. Method #3: Press and hold the "One" then the "Six" preset keys until the display shows the letter "C." Enter the security code using your Kenwood remote.
  4. Tips:
  • If you did not have your manual, try the most common codes for Kenwood stereos. If those codes don't work, you can also buy your Kenwood stereo code online. There are places online that will sell you the security code to your Kenwood stereo.
  • Keep your security code and this information in a safe place.

Here is a link to a more detailed site Good Luck

May 18, 2016 | Kenwood Car Audio & Video

1 Answer

I have a radio in a truck i bought and the battery died. the guy gave me a code and i cant get it to take in the radio any help would be appreciated


Kenwood car stereos are protected against theft by four digit security codes. If a thief steals a Kenwood car stereo, they will not be able to use the stereo until they enter the secret for digit security code.
Unfortunately, many legitimate owners are also locked out of their Kenwood car stereos due to these security codes. This typically happens to people who buy used cars from people who forget to share the security code. However, it also happens to people who simply forget their security codes after several years.


  • KCAR - This seems to be a "backdoor" to some Kenwood models.
  • 3051 - This is the security code which is printed in the manual of many Kenwood models.
  • 1234 - This is a security code commonly chosen by Kenwood owners.
  • f the car battery fails or is disconnected, the Kenwood will ask for the security code. The procedure to enter your security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:
    Type 1
  • During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
  • Enter the security code using your Kenwood remote.
Type 2
  • Press the "Auto" button and "Track up" on the face of radio at the same time until the four dash lines disappear.
  • Enter the security code using your Kenwood remote.
Type 3: Model# DPX-4020 and DPX-4030
  • Press and hold the 1 then the 6 preset keys until the display shows the letter 'C'.
  • Enter the security code using your Kenwood remote.

To enter a letter using your Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter -- then press the Track Up or Next Track key to send the letter.
To send the letter 'A', press the 2 key once and then press the Track Up key. To send the letter 'B', press the 2 key twice and then press the Track up key.
Finally, when you are done entering all of the letters, press and hold the Track Up button for 3 seconds.
The key sequence to enter the security code KCAR is:
  • 5
  • 5
  • Track Up
  • 2
  • 2
  • 2
  • Track Up
  • 2
  • Track Up
  • 7
  • 7
  • Track Up
Your Kenwood should then enter tuner mode.
A Security Code Bug in Some Kenwoods There is a reported bug in the security code handling of some Kenwood stereos. In models with thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.
In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.

Dec 02, 2010 | Kenwood KDC-MP332 CD Player

1 Answer

Need code for kdc-mp228 cd player


Common Kenwood Security Codes Many Kenwood radios are configured with the same security codes:
  • KCAR - This seems to be a "backdoor" to some Kenwood models.
  • 3051 - This is the security code which is printed in the manual of many Kenwood models.
  • 1234 - This is a security code commonly chosen by Kenwood owners.
Entering Your Kenwood Security Code If the car battery fails or is disconnected, the Kenwood will ask for the security code.
The procedure to enter your security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:
Type 1
  • During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
  • Enter the security code using your Kenwood remote.
Type 2
  • Press the "Auto" button and "Track up" on the face of radio at the same time until the four dash lines disappear.
  • Enter the security code using your Kenwood remote.
Type 3: Model# DPX-4020 and DPX-4030
  • Press and hold the 1 then the 6 preset keys until the display shows the letter 'C'.
  • Enter the security code using your Kenwood remote.
Entering Letters on your Kenwood Remote To enter a letter using your Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter -- then press the Track Up or Next Track key to send the letter.
To send the letter 'A', press the 2 key once and then press the Track Up key. To send the letter 'B', press the 2 key twice and then press the Track up key.
Finally, when you are done entering all of the letters, press and hold the Track Up button for 3 seconds.
The key sequence to enter the security code KCAR is:
  • 5
  • 5
  • Track Up
  • 2
  • 2
  • 2
  • Track Up
  • 2
  • Track Up
  • 7
  • 7
  • Track Up
Your Kenwood should then enter tuner mode.
A Security Code Bug in some Kenwoods There is a reported bug in the security code handling of some Kenwood stereos. In models with thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.
In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.
Finding the Kenwood Security Code There are backdoor codes for each Kenwood car stereo, based upon the model and the serial numbers.
These backdoor codes are closely held secrets. Outfits like Car Audio Accessories UK will sell you the code for your radio for £20.
Sending Your RadioBack to Kenwood If all else fails, you can send your stereo back to Kenwood to have the security code reset.

Thanks for using FixYa, please accept this answer to remove it from the work queue.

Jul 20, 2009 | Kenwood KDC-MP228 CD Player

1 Answer

Need 4 digit code for kdc-mp228 cd player


Common Kenwood Security Codes Many Kenwood radios are configured with the same security codes:
  • KCAR - This seems to be a "backdoor" to some Kenwood models.
  • 3051 - This is the security code which is printed in the manual of many Kenwood models.
  • 1234 - This is a security code commonly chosen by Kenwood owners.
Entering Your Kenwood Security Code If the car battery fails or is disconnected, the Kenwood will ask for the security code.
The procedure to enter your security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:
Type 1
  • During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
  • Enter the security code using your Kenwood remote.
Type 2
  • Press the "Auto" button and "Track up" on the face of radio at the same time until the four dash lines disappear.
  • Enter the security code using your Kenwood remote.
Type 3: Model# DPX-4020 and DPX-4030
  • Press and hold the 1 then the 6 preset keys until the display shows the letter 'C'.
  • Enter the security code using your Kenwood remote.
Entering Letters on your Kenwood Remote To enter a letter using your Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter -- then press the Track Up or Next Track key to send the letter.
To send the letter 'A', press the 2 key once and then press the Track Up key. To send the letter 'B', press the 2 key twice and then press the Track up key.
Finally, when you are done entering all of the letters, press and hold the Track Up button for 3 seconds.
The key sequence to enter the security code KCAR is:
  • 5
  • 5
  • Track Up
  • 2
  • 2
  • 2
  • Track Up
  • 2
  • Track Up
  • 7
  • 7
  • Track Up
Your Kenwood should then enter tuner mode.
A Security Code Bug in some Kenwoods There is a reported bug in the security code handling of some Kenwood stereos. In models with thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.
In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.

Sending Your Radio Back to Kenwood If all else fails, you can send your stereo back to Kenwood to have the security code reset.

Thanks for using FixYa - please accept this answer to remove it from the work queue.

Jul 20, 2009 | Kenwood KDC-MP228 CD Player

1 Answer

I have a kenwood Model # KDC-MP4028 and I just changed the battery in my car and now its asking 4 a code I have had this radio for years and I dont know the code and need instructions on how to restart the...


Common Kenwood Security Codes
Many Kenwood radios are configured with the same security codes:

KCAR - This seems to be a "backdoor" to some Kenwood models.
3051 - This is the security code which is printed in the manual of many Kenwood models.
1234 - This is a security code commonly chosen by Kenwood owners.
Entering Your Kenwood Security Code
If the car battery fails or is disconnected, the Kenwood will ask for the security code.

The procedure to enter your security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:

Type 1
During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
Enter the security code using your Kenwood remote.
Type 2
Press the "Auto" button and "Track up" on the face of radio at the same time until the four dash lines disappear.
Enter the security code using your Kenwood remote.
Type 3: Model# DPX-4020 and DPX-4030
Press and hold the 1 then the 6 preset keys until the display shows the letter 'C'.
Enter the security code using your Kenwood remote.
Entering Letters on your Kenwood Remote
To enter a letter using your Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter -- then press the Track Up or Next Track key to send the letter.

To send the letter 'A', press the 2 key once and then press the Track Up key. To send the letter 'B', press the 2 key twice and then press the Track up key.

Finally, when you are done entering all of the letters, press and hold the Track Up button for 3 seconds.

The key sequence to enter the security code KCAR is:

5
5
Track Up
2
2
2
Track Up
2
Track Up
7
7
Track Up
Your Kenwood should then enter tuner mode.

A Security Code Bug in some Kenwoods
There is a reported bug in the security code handling of some Kenwood stereos. In models with thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.

In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.

Jun 25, 2009 | Kenwood KDC-MP4028 CD Player

1 Answer

Need code for Kenwood kdc-mpv7019


Common Kenwood Security Codes
Many Kenwood radios are configured with the same security codes:

KCAR - This seems to be a "backdoor" to some Kenwood models.
3051 - This is the security code which is printed in the manual of many Kenwood models.
1234 - This is a security code commonly chosen by Kenwood owners.
Entering Your Kenwood Security Code
If the car battery fails or is disconnected, the Kenwood will ask for the security code.

The procedure to enter your security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:

Type 1
During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
Enter the security code using your Kenwood remote.
Type 2
Press the "Auto" button and "Track up" on the face of radio at the same time until the four dash lines disappear.
Enter the security code using your Kenwood remote.
Type 3: Model# DPX-4020 and DPX-4030
Press and hold the 1 then the 6 preset keys until the display shows the letter 'C'.
Enter the security code using your Kenwood remote.
Entering Letters on your Kenwood Remote
To enter a letter using your Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter -- then press the Track Up or Next Track key to send the letter.

To send the letter 'A', press the 2 key once and then press the Track Up key. To send the letter 'B', press the 2 key twice and then press the Track up key.

Finally, when you are done entering all of the letters, press and hold the Track Up button for 3 seconds.

The key sequence to enter the security code KCAR is:

5
5
Track Up
2
2
2
Track Up
2
Track Up
7
7
Track Up
Your Kenwood should then enter tuner mode.

A Security Code Bug in some Kenwoods
There is a reported bug in the security code handling of some Kenwood stereos. In models with thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.

In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.

Jun 19, 2009 | Kenwood KDC-MPV7019 CD Player

1 Answer

Changed battery now radio says enter code when i turn it on


Common Kenwood Security Codes
Many Kenwood radios are configured with the same security codes:

KCAR - This seems to be a "backdoor" to some Kenwood models.
3051 - This is the security code which is printed in the manual of many Kenwood models.
1234 - This is a security code commonly chosen by Kenwood owners.
Entering Your Kenwood Security Code
If the car battery fails or is disconnected, the Kenwood will ask for the security code.

The procedure to enter your security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:

Type 1
During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
Enter the security code using your Kenwood remote.
Type 2
Press the "Auto" button and "Track up" on the face of radio at the same time until the four dash lines disappear.
Enter the security code using your Kenwood remote.
Type 3: Model# DPX-4020 and DPX-4030
Press and hold the 1 then the 6 preset keys until the display shows the letter 'C'.
Enter the security code using your Kenwood remote.
Entering Letters on your Kenwood Remote
To enter a letter using your Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter -- then press the Track Up or Next Track key to send the letter.

To send the letter 'A', press the 2 key once and then press the Track Up key. To send the letter 'B', press the 2 key twice and then press the Track up key.

Finally, when you are done entering all of the letters, press and hold the Track Up button for 3 seconds.

The key sequence to enter the security code KCAR is:

5
5
Track Up
2
2
2
Track Up
2
Track Up
7
7
Track Up
Your Kenwood should then enter tuner mode.

A Security Code Bug in some Kenwoods
There is a reported bug in the security code handling of some Kenwood stereos. In models with thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.

In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.

Jun 10, 2009 | Kenwood KDC-MP435U CD Player

25 Answers

Forgot my code.


What button should I push if I don't have an "auto" button, both on the remote or the head unit? I have a dNx-5140. All help would be appreciated.

Aug 27, 2007 | Kenwood KDC-MP4028 CD Player

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