Radio temporarily disconnected from car battery needs unlock code which I have. Display shows - - - - I have tried holding down 'band select' for 3 secs as in handbook but to no avail. Need display to 'enter unlock code' or something similar (cannot remember exact wording). Clarion PN-9728F CL0243S0006551 in Nissan Primera. Can you advise?

CODE 1793
Code Entry as Follows:

Switch Radio On - Display Shows
" CODE "
Press and Hold "BAND"
The display will now show " 10 - - - - "
Press preset " 1 " repeatedly for 1st Digit
Press preset " 2 " repeatedly for 2nd Digit
Press preset " 3 " repeatedly for 3rd Digit
Press preset " 4 " repeatedly for 4th Digit
If the correct code number is now shown
Press and Hold "BAND" to Enter

Nikolay Spasov code 3096
Code Entry as Follows:

Switch Radio On - Display Shows
" CODE "
Press and Hold "BAND"
The display will now show " 10 - - - - "
Press preset " 1 " repeatedly for 1st Digit
Press preset " 2 " repeatedly for 2nd Digit
Press preset " 3 " repeatedly for 3rd Digit
Press preset " 4 " repeatedly for 4th Digit
If the correct code number is now shown
Press and Hold "BAND" to Enter

Hi,
According to your requirement you have to purchase radio code or you can use car radio decoder software to decode your car radio. If you have experienced a dead battery, disconnected the factory radio harness or disconnected the battery to the vehicle then you must need radio code. Better to purchase a radio code. Before purchase determine of your radio type and do the following steps. The radio must be in LOC mode NOT in INOP mode. Turn the ignition ON. Press and hold presets buttons 2 & 3 or 1 & 4 for approximately 10 seconds. The radio display changes from LOC to a three-digit number. Write this number down. You will then have fifteen seconds max before the next step must be performed. Press the AM/FM button. The radio display changes to another three-digit number. Write this number to the right of the first one. You now have a six or four-digit number, the first three digits are from STEP 3 and the last three digits are from STEP 5. If you have a four digit number, it will show all four digits at the same time. Then purchase the code mentioning your car model and unlock the radio. You can purchase your code from radio-code.com by credit or debit card.

If You know the code:
1. Turn radio On
2. Display say "Code in"
3. Enter the Code by memory station buttons (4 digits)

If You enter wrong code for the first time:
1. Turn radio off.
2. Turn radio on
3. Press and hold the band "~" button
4. Display shows ====
5. Wait till display say "code in"
6. Enter the code by mem. station buttons.(4 digits)

Important:
You mast wait by Radio ON in = = = = condition,
and not in - - - -!
The max. waiting time is 90 min.

TIP:
Tested by PU-1570A Eeprom 93C46
1. Radio Off
2. Press and hold the Band "~" Button.
3. Turn the radio ON
4. Enjoy!

Does your GM car or truck Radio display LOC and does not turn on? Chevrolet, Buick, Pontiac, GMC, Cadillac, Oldsmobile vehicles used a theft system to lock the radio when power is lost. This system was used from the ealy 1990's to the early 2000's.

Instructions:

1. If your radio displays the word LOC, you can retrieve a set of factory numbers in the radio that enable you to get a backup unlock code. If the radio says INOP, you will have to leave the key in the "ON" position, or let the car run for at least 1 hour before you attempt any unlock procedure. INOP means a secondary theft lock due to too many false attempts to unlock the radio.
2. Looking at the face of your GM Delco radio, hold down the preset buttons 1 & 4 OR 2 & 3 (Depending on year and model) for approximately 10 seconds or until a set of 2 or 3 numbers comes up on the display. Write the numbers down.
3. Next press the AM / FM button. A new set of 3 numbers will now show. Write these numbers down. You will then need to call a 1-800 phone number with these numbers to get the unlock code. There are many sites on the internet that can get it for you- for a small fee. Or, try calling your local GM Dealer and ask for them to do it. Many times they will do it for free. It only takes a minute.
4. Once you have the unlock code, enter it by pressing the MIN button until the display shows the last 2 digits of the unlock code, then press the HR button until the first 2 numbers or shown. Then press the AM / FM button to enter the code. The radio will now display SEC, and normal function is restored.

Also, its possible that you need RESET your GM Radio; this is the procedure: While performing maintenance on your car, you may disconnect the radio from the battery in your GM vehicle. GM cars contain Delco radios that are protected by Theftlock, which locks the radio after it has been disconnected from a power source. Iit can only be reset and unlocked with a car-specific security code. Identifying the security code for your GM vehicle is the only way to reset the car radio and disable the Theftlock protection device.

Instructions:

1. Turn on your car. Your Delco radio will show "LOC" in the LED display.
2. Press and hold down both the second and third preset buttons. Hold these buttons down for at least six seconds.
3. Write down the two- or three-digit code that appears in the LED display.
4. Press the AM/FM button on the radio.
5. Write down the next two- or three-digit code that appears in the LED display. You should be left with either a four- or six-digit number. Turn off your car.
6. Call the Delco radio automated customer support line at 1-800-537-5140.
7. Press "1" and then press the pound sign. The automated voice should respond "Invalid code, try again."
8. Enter the number 139010 into your phone and then press the "*" sign.
9. Enter the four- or six-digit number you wrote down from Steps 3 and 5, and then press the "*" button.
10. Write down the four-digit code given by the automated voice.
11. Turn on your car. Enter the Delco unlock code using the procedure outlined by your GM owner's manual. Normally, the unlock code is entered with the "HR" and "MN" buttons on your radio.
12. Press the AM/FM button. If you have entered the code correctly, your LED display will read "SEC" and the radio will be unlocked.
    

Also can check your Does your GM car or truck Radio display LOC and does not turn on? Chevrolet, Buick, Pontiac, GMC, Cadillac, Oldsmobile vehicles used a theft system to lock the radio when power is lost. This system was used from the ealy 1990's to the early 2000's.
jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); });
Instructions:

1. If your radio displays the word LOC, you can retrieve a set of factory numbers in the radio that enable you to get a backup unlock code. If the radio says INOP, you will have to leave the key in the "ON" position, or let the car run for at least 1 hour before you attempt any unlock procedure. INOP means a secondary theft lock due to too many false attempts to unlock the radio.
2. Looking at the face of your GM Delco radio, hold down the preset buttons 1 & 4 OR 2 & 3 (Depending on year and model) for approximately 10 seconds or until a set of 2 or 3 numbers comes up on the display. Write the numbers down.
3. Next press the AM / FM button. A new set of 3 numbers will now show. Write these numbers down. You will then need to call a 1-800 phone number with these numbers to get the unlock code. There are many sites on the internet that can get it for you- for a small fee. Or, try calling your local GM Dealer and ask for them to do it. Many times they will do it for free. It only takes a minute.
4. Once you have the unlock code, enter it by pressing the MIN button until the display shows the last 2 digits of the unlock code, then press the HR button until the first 2 numbers or shown. Then press the AM / FM button to enter the code. The radio will now display SEC, and normal function is restored.

Also, its possible that you need RESET your GM Radio; this is the procedure: While performing maintenance on your car, you may disconnect the radio from the battery in your GM vehicle. GM cars contain Delco radios that are protected by Theftlock, which locks the radio after it has been disconnected from a power source. Iit can only be reset and unlocked with a car-specific security code. Identifying the security code for your GM vehicle is the only way to reset the car radio and disable the Theftlock protection device. jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); });
Instructions:

1. Turn on your car. Your Delco radio will show "LOC" in the LED display.
2. Press and hold down both the second and third preset buttons. Hold these buttons down for at least six seconds.
3. Write down the two- or three-digit code that appears in the LED display.
4. Press the AM/FM button on the radio.
5. Write down the next two- or three-digit code that appears in the LED display. You should be left with either a four- or six-digit number. Turn off your car.
6. Call the Delco radio automated customer support line at 1-800-537-5140.
7. Press "1" and then press the pound sign. The automated voice should respond "Invalid code, try again."
8. Enter the number 139010 into your phone and then press the "*" sign.
9. Enter the four- or six-digit number you wrote down from Steps 3 and 5, and then press the "*" button.
10. Write down the four-digit code given by the automated voice.
11. Turn on your car. Enter the Delco unlock code using the procedure outlined by your GM owner's manual. Normally, the unlock code is entered with the "HR" and "MN" buttons on your radio.
12. Press the AM/FM button. If you have entered the code correctly, your LED display will read "SEC" and the radio will be unlocked.
    

Also can check 1999-Pontiac-Firebird-Owners-Manual (page 163), there are several information about to lock and unlock.


Hope this help (remember comment and rated this).

Does your GM car or truck Radio display LOC and does not turn on? Chevrolet, Buick, Pontiac, GMC, Cadillac, Oldsmobile vehicles used a theft system to lock the radio when power is lost. This system was used from the ealy 1990's to the early 2000's.
jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); });
Instructions:

1. If your radio displays the word LOC, you can retrieve a set of factory numbers in the radio that enable you to get a backup unlock code. If the radio says INOP, you will have to leave the key in the "ON" position, or let the car run for at least 1 hour before you attempt any unlock procedure. INOP means a secondary theft lock due to too many false attempts to unlock the radio.
2. Looking at the face of your GM Delco radio, hold down the preset buttons 1 & 4 OR 2 & 3 (Depending on year and model) for approximately 10 seconds or until a set of 2 or 3 numbers comes up on the display. Write the numbers down.
3. Next press the AM / FM button. A new set of 3 numbers will now show. Write these numbers down. You will then need to call a 1-800 phone number with these numbers to get the unlock code. There are many sites on the internet that can get it for you- for a small fee. Or, try calling your local GM Dealer and ask for them to do it. Many times they will do it for free. It only takes a minute.
4. Once you have the unlock code, enter it by pressing the MIN button until the display shows the last 2 digits of the unlock code, then press the HR button until the first 2 numbers or shown. Then press the AM / FM button to enter the code. The radio will now display SEC, and normal function is restored.

Also, its possible that you need RESET your GM Radio; this is the procedure: While performing maintenance on your car, you may disconnect the radio from the battery in your GM vehicle. GM cars contain Delco radios that are protected by Theftlock, which locks the radio after it has been disconnected from a power source. Iit can only be reset and unlocked with a car-specific security code. Identifying the security code for your GM vehicle is the only way to reset the car radio and disable the Theftlock protection device. jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); });
Instructions:

1. Turn on your car. Your Delco radio will show "LOC" in the LED display.
2. Press and hold down both the second and third preset buttons. Hold these buttons down for at least six seconds.
3. Write down the two- or three-digit code that appears in the LED display.
4. Press the AM/FM button on the radio.
5. Write down the next two- or three-digit code that appears in the LED display. You should be left with either a four- or six-digit number. Turn off your car.
6. Call the Delco radio automated customer support line at 1-800-537-5140.
7. Press "1" and then press the pound sign. The automated voice should respond "Invalid code, try again."
8. Enter the number 139010 into your phone and then press the "*" sign.
9. Enter the four- or six-digit number you wrote down from Steps 3 and 5, and then press the "*" button.
10. Write down the four-digit code given by the automated voice.
11. Turn on your car. Enter the Delco unlock code using the procedure outlined by your GM owner's manual. Normally, the unlock code is entered with the "HR" and "MN" buttons on your radio.
12. Press the AM/FM button. If you have entered the code correctly, your LED display will read "SEC" and the radio will be unlocked.
    

Hope this help.

For our Toyota Prado 2001 01, after the battery had been removed SEC was showing on the cd / tape / radio display. To remove the security SEC warning, find the last 3 digits of your VIN number (under the hood) hold down the "TUNE" button and then press "1"

Then use the numbers 1 2 and 3 to type in the last 3 digits of your VIN number.

Quickly hold down "SCAN" button, the radio will power off, then press the volume button to turn it back on.

-I accidentally held down "auto" before holding down scan, I don't think auto has any part of fixing this (just an error on my part) but if the above doesn't work, you could try hold AUTO down after entering the digits then hold scan - just as I did.

Hopefully SEC has now been removed, enjoy your radio!

how do i bypass the theftlock on my radio in my 2002 grand am

PRESET RADIO STATIONS
1 press RADIO BAND. AUTO PRESET to select the band.
2 Hold down RADIO BAND > AUTO PRESET for 2 seconds until "AUTO"flashes in the display
3 Press DSPL/ENT/MEM. The stations are stored in the memory from the lower frequencies to the higher ones.

if a station can not be preset automatically.
you need to preset a station manually.
1 press RADIO BAND. AUTO PRESET to select the band.
2 tune int he station you want.
3 hold down DSPL/ENT/MEM. for 2 seconds until the preset number flashes in the display.
4 press PRESET + or - until the preset number you watn for the station flashes in the display.
5 press DSPL/ENT/MEM. The new station replaces any old one.

TIP the preset radio stations remain in memory even when all power is disconnected.

manual available at sony
http://www.docs.sony.com/release/CFDF10.pdf

1237 is you unlock code just use hr to set the 12 and min to enter 37 and then am/fm to select. Display should show SEC. Press power and radio should be unlocked.

to disable code turn radio off and then press and hold buttons 1 & 4 till the SEC displays. then enter code again and press am/fm to select. ---- should now display. this means the radio is fully disarmed and will not lockup again.

good luck