I've got a bad display on my '07 Mountaineer's radio and found one that's very close except for the last letter in the part number. The original is 7L2T-18C868-AC and the display part came from a 7L2T

Try pressing the phone key on the display. It sounds like you have hit a mute setting for taking or making telephone calls. It is possible that the Sync system is waiting for you to enter a phone number and has killed the radio for the call.

Procedure:

01. Turn the ignition ON (The radio displays LOC)

02. Hold down the Radio Presets 2 and 3 buttons for six seconds

03. The radio display changes from LOC to a three-digit number. Write this number down. Don’t take forever, fifteen seconds max before the next step.

04. Press the AM/FM button

05. The radio display changes to another three-digit number. Write this number to the right of the first one.

06. You now have a six-digit number, the first three digits are from STEP 03 and the last three digits are form STEP 05

07. Call 1 800 537 5140

08. Press 1 then # (pound). You’ll hear “Invalid Code, try again”

09. Press 139010 then # (pound). You will be asked to enter your four or six digit code followed by * (start)

10. Enter the number from STEP 6 then * (star)

11. Listen to the four-digit number and write it down. It will be repeated twice

12. Turn the ignition ON (The radio displays LOC)

13. Use the MN and HR buttons to enter the code from STEP 11

14. Press the AM/FM button. The radio display changes to SEC Your radio is now “un-locked” and usable. The Theft-Deterrent feature is STILL active! If you want to disable it, use the instruction on page 3-27 in your Y2K Owner’s manual. Use the code from STEP 11 instead of your personal code.


This tip originated from LOTZAHP

stereo codes for Honda

Method 1 (all applicable models except '03-07 Accords with the navigation system)
1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and make sure you see stereo COdE in the display. If you don't see this message, pull the backup fuse for 1 minute, and then go back to step 1.
3. Turn off the audio unit.
4. Press and hold the 1 and 6 preset buttons, then turn on the audio unit. The display toggles between two screens. The first screen displays a U and the first four digits of the serial number (for example, U2200). The second screen displays an L and the last four digits of the serial number (for example, L0055). Ignore the U and L, and write down all eight digits.

Method 2 ('03-07 Accords with the navigation system)
1. Turn the ignition switch to ACC (I).
2. Turn on the audio unit, and make sure you see COdE in the upper display. If you don't see this message, pull the backup fuse for 1 minute, and then go back to step 1.
3. Turn off the audio unit.
4. Press and hold the top halves of the SEEK/SKIP and CH/DISC bars, and then press and release the PWR/VOL knob. This display toggles between two screens. The first screen displays a U and the first four digits of the serial number (for example, U2200). The second screen displays an L and the last four digits of the serial number (for example, L0055). Ignore the U and L, and write down all eight digits.
5. Call Honda Dealer for Radio Code.
6. Use the TUNE knob to enter the first four digits of the anti-theft code into the audio unit. (Ignore the last digit; it's not used.) When you turn the TUNE knob, COdE disappears, and a single digit is displayed. Turn the knob left or right to select each of the anti-theft code digits. When you press the TUNE knob, the system beeps and accepts each digit as it spells out CODE on the display.

https://radio-navicode.honda.com

Method 1 (all applicable models except '03-07 Accords with the navigation system)
1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and make sure you see COdE in the display. If you don't see this message, pull the backup fuse for 1 minute, and then go back to step 1.
3. Turn off the audio unit.
4. Press and hold the 1 and 6 preset buttons, then turn on the audio unit. The display toggles between two screens:
- The first screen displays a U and the first four digits of the serial number (for example, U2200).
- The second screen displays an L and the last four digits of the serial number (for example, L0055). Ignore the U and L, and write down all eight digits.

Method 2 ('03-07 Accords with the navigation system)
1. Turn the ignition switch to ACC (I).
2. Turn on the audio unit, and make sure you see COdE in the upper display. If you don't see this message, pull the backup fuse for 1 minute, and then go back to step 1.
3. Turn off the audio unit.
4. Press and hold the top halves of the SEEK/SKIP and CH/DISC bars, and then press and release the PWR/VOL knob. This display toggles between two screens. The first screen displays a U and the first four digits of the serial number (for example, U2200). The second screen displays an L and the last four digits of the serial number (for example, L0055). Ignore the U and L, and write down all eight digits.
5. Call Honda Dealer for Radio Code.
6. Use the TUNE knob to enter the first four digits of the anti-theft code into the audio unit. (Ignore the last digit; it's not used.) When you turn the TUNE knob, COdE disappears, and a single digit is displayed. Turn the knob left or right to select each of the anti-theft code digits. When you press the TUNE knob, the system beeps and accepts each digit as it spells out CODE on the display.

If this don't work, definitly you need to call Honda delaer using your VIN.

Hope this help.

if you dont have the code, the radio has to be removed and a gm dealer can get the code.

I have had the same problem. It is a short within the radio itself. There really is no fixing it except for buying a new one.

when you use the "preset keys" (the keys on the radio with numbers on them) to enter the code, each time you press a code number, a letter appears [c, o, d, e]. once the word is spelled out, from entering the correct 5 digits, the radio is reset, ready to go.

BUT if you miss a number, enter a wrong number, whatever, each number pressed, still makes a letter appear from the word "code". once the word is spelled out, by entering ANY 5 numbers, if ANY of the 5 is wrong, the radio displays a message "Error" and then a number 1 thru 10.

When you see the word "Error..."

the next preset button you push, starts the whole thing over again. The radio says "Enter code". That is when you enter the 1st of the 5 digits, the letter C appears, enter the next digit, the letter O appears, enter the next digit, the letter D appears, enter the last digit, the letter E apperas, the radio is reset, ready to go, if you got the 5 correct numbers entered.

you have 10 chances to enter the right 5 digit code. Each wrong try of 5 digits yeilds a display of "Error 1", "Error 2", "Error 3", etc 'till you get to 10 incorrect tries of 5 digits each.

If you dont get it right in 10 tries, you have to leave the radio "on" for an hour, then it will let you start the 10 tries over again.

Good luck!

OMG - I found that same problem last night. Did you have a problem with you door locks and radio afterwards. Today I found my door locks don't work and my radio won't shut off. I am so confused!! I also had my alternator replaced about 1 month ago and the "miles to E" gives me a message of "computing fuel" for a few minutes rather then "miles to E"

Have you found a solution yet?

First a warning- STAY AWAY from the website service called "radio-codes dot com." They have no security measures in place to know if the unit is stolen or not. So don't pay them and encourage such practices. besides, they're just going to do what you can do yourself for free, and in a more ethical manner for all.
Okay, that said, your code may in fact be found somewhere on the car. It will be five digits: Try for a small sticker in the glovebox or on the outer side of the glovebox. Maybe even try looking for it under the ashtray. Up under the trunk space somewhere. If it can't be found, the 8-digit radio serial number may be, and you will need that to get the code. However, you can get the serial number electronically on almost all models except '03-'07 Accords w/navigation in six, or six and 1/2 steps...
STEP ONE: get a pen and paper handy, or a friend with a photographic memory.
STEP TWO: turn on ignition
STEP THREE: turn on audio unit and check if you see "COdE" in display-- if not, pull the backup fuse or battery cables again for 1 minute or longer and until you do).
STEP FOUR: turn off audio unit.
STEP FIVE: press and hold the preset buttons "1" and "6" simulatneously, then turn on the audio unit. The display will toggle back and forth between two screens-- the first showing the letter U followed by four numbers (WRITE THESE DOWN!) and the second display showing a letter L followed by four numbers (yep, you guessed it WRITE THESE DOWN NEXT!)
Forget about the U and the L. The eight numbers -big or small in size- make up your serial number (NOT YOUR UNLOCK CODE).
STEP SIX: If the car is registered with Honda USA, you can simply go to the website
https://radio-navicode.honda.com/ to get the radio unlock code for free. (they will tell you the info that you will need to prove you're not the theif who simply stole your radio (ie: the serial number you just retrieved, the VIN, and probably your name and the address the car would be registered with them under).
STEP SIX AND A HALF: If you don't have luck there, proof of ownership, the VIN, and the unit's serial number should be all you need to get it from a dealer. They might charge 25 bucks, or they might not if you seem like or act like a regular.
Hope this helps. My first solution. But it worked 100% for myself.

I have a 2005 accord, and this worked for me.

1)Turn on engine w/ radio off. Push and hold down buttons 1, 6, and power.
2)I got the letter "U" followed by 4 numbers and then letter "L" followed by 4 numbers; write down those numbers.
3) Go to Honda.com
4)Click on Owners home link.
5)On that page you should see an option for retrieving radio codes for honda/acura
6)you will need to enter Vin#, home phone number and zip code fo the original owner. This will then give you the radio code..