Hi there I have 1993 Honda accord EX-R Sedan with Original Stock Radio, which got the Anti-theft lock Code on it..I believe the Serial numbers are FAO31116B for the radio ..I don't have the Code for it to unlock please Help .

Hi David.
I'm afraid you're going to have to contact your Honda dealer on this one.

Sorry I couldn't be of more help.
-Steve

If you've ever lost your radio code for your Honda Accord, you know how frustrating it can be.
You may have to go to your local Honda dealership and pay a fee to have them look up the code for you!
Or, you can take a few minutes to find the code yourself.
Here are 5 methods to get your Accord radio code for free.
Once you have the code, you will need to enter it into your radio to unlock it.

no way without the radio number,only ones that have this on record are the dealers.Why dint someone suggest using a boost box on battery cables before it was changed .

No-one is ever particularly happy to here this, but this is the way it is; we do have to keep in mind that the original idea of codes on radios was to prevent people who steal them from being able to use them.

So, if an audio unit with theft protection is disconnected from electrical power, you must enter a unique code number into the unit or it will not work. This code and the audio unit’s serial number are listed on the anti-theft ID card that comes with the vehicle. If this card is lost, you must obtain the audio unit serial number in order to get the radio code (some people say that they have found the code on a sticker inside the glove compartment, but I wouldn’t count on that). Some newer vehicles allow you to retrieve the audio unit serial number electronically from the radio. Refer to your owner’s manual for the specific procedure (the following usually will work: Turn the radio off. Push the preset 1, preset 6, and power buttons at the same time, then quickly release. The serial number will come up in two sets of numbers.)
Some older vehicles (model year 2003 and older) require a visit to the dealer in order to retrieve the audio unit serial number (or you can remove the unit and get the serial number from the back of the radio). Once you have the audio unit serial number, you can call Auto Customer Service at (800) 999-1009 or have the dealer look up the radio code.

Here is the URL for the Honda Owner page. If you register (no charge) you are able to get radio codes using the VIN number of your car, the serial number of your radio, and the Phone Number and Zip Code that you give them when you register.

https://www.ahm-ownerlink.com/login.asp?page=%2Fprod%5Fhome%2Easp

Hope this helps you with the process.

you will need to pull radio out and retrieve s/n off of stereo. with s/n i can get anti theft code for you. if you need help with removing radio let me know.

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FREE and EASY methods to get your Honda radio UNLOCK CODE. (Dealerships usually charge)

Assuming you don't have the Anti-Theft Code and Serial Number that is found on the credit card sized Anti-Theft Radio Identification Card that comes with the vehicle at the time of purchase and is usually found in the glove compartment....

You have FREE options to retrieve that code by phone or on the internet BUT, the RADIO SERIAL NUMBER is REQUIRED (no matter what). (see bottom about removing ERROR E3)

***IF your Honda was made BEFORE 2001 the serial number MAY not be accessible without removing the radio from the vehicle.***

* TO GET THE SERIAL NUMBER (so that you can get the unlock code)

1. Get something to write with and on (you'll need it to write down the serial number)
2. Put the ingnition key in and turn it until your able to turn your radio on (accessories position).
3. Then turn your radio OFF by it's knob/button (but leave the ingition key in place).
4. Hold down the preset buttons 1 and 6 at the same time.
5. Turn the radio on while pressing down both the 1 and 6 buttons.(***IF your Honda doesn't have preset buttons on the radio then hold down the top part of the 'Seek/Skip' button AND the top part of the 'Change Disk' button instead.*** )
6. Write down the 4 numbers you see first and then 4 more that display. These eight numbers are the SERIAL NUMBER. This is NOT your CODE.
7. Make sure your VIN (Vehicle Identification Number) is handy to get the unlock code. (can be found on your insurance card, driver's side door jam, small plate on dashboard by registration and inspection stickers, etc)

* TO GET THE UNLOCK CODE (using the radio Serial Number and VIN)

---Internet option:

1. Go to https://radio-navicode.honda.com/ (YES, it's run BY HONDA and IT'S FREE)
2. Follow on screen instructions (Serial Number and VIN required)
3. Type in the 5 digit code into your radio. This will unlock the radio and return it to a functional state.

-OR-

---Telephone option:

1. Call American Honda Customer Relations (800) 999-1009
2. When the automated message starts 'Press 3' for 'Radio and Navigation Codes'.
3. Tell the Customer Service Agent you need your radio code. (They will ask for your name, your radio's serial number, VIN, etc)
4. When they give you your radio unlock code--WRITE IT DOWN and KEEP IT SAFE!
5. Type in the 5 digit code into your radio. This will unlock the radio and return it to a functional state.

* REMOVING ERROR E3

****If you entered too many wrong codes and got an ERROR E3 message displaying you'll need to do an additional step for even the correct unlock code to work.****

Disconnect your negative battery terminal (or pull the radio fuse out if that's easier for you) for 30 seconds then reconnect it and then the radio will say "CODE" again and you can put in your correct unlock code.

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So what happened to begin with?
See also: http://automobiles.honda.com/information/frequently-asked-questions.aspx?Question=2

If the power from your battery to the Honda radio is interrupted the Anti-Theft feature kicks in, the radio is rendered inoperable and the screen reads 'CODE'. You must enter in the Anti-Theft Radio Unlock Code (usually 5 digits) to make it operational again. You know that much by now.

if you do not have original anti-theft radio code you will need to remove radio and retrieve s/n off of radio. once you have that you can go into nearest honda dealer and with s/n they can give you correct radio code

You must go through your local honda dealer, (usually parts department) give them the numbers off the labels on the radio, along with the VIN number of the car. may have to prove ownership. They can call Honda and get that information for you. Process is alot easier if you someone that works in the parts department, if not the honda parts department, then another parts department at another car dealer.

Just give the dealer a call and give them the VIN and they should be able to help you.

I'm afraid only the dealer can help you