CODE KNOWN
If you know the Owner"s Code, a four-digit code, the instructions are fairly simple:
It should be on sticker inside glove compartment.
STEP 1: Turn the ignition to ACC
STEP 2: Briefly and simultaneously press both SEARCH and AUTO-M. This action should change the display from a blinking code to a solid.
STEP 3: Using the radio preset buttons 1, 2, 3, and 4, set the Owner"s Code in the display.
The first position can be set using the 1 button, the second using the 2 button, etc.
STEP 4: Press & hold both SEARCH & AUTO-M until you hear a loud beep and the display shows good.
The radio will then turn off, and you are ready to start listening again.
CODE UNKNOWN
If you don"t know the Owner"s Code, the instructions are similar.
The first goal is to get the display to flash "ERR" instead of code. Then you can enter the Dealer Code to reset the radio.
Here are the steps:
STEP 1: Turn the ignition to ACC
STEP 2: Briefly and simultaneously press both SEARCH and AUTO-M. This action should change the display from a blinking code to a solid.
STEP 3: Using the radio preset buttons 1, 2, 3, and 4, set any four-digit code in the display.
The first position can be set using the 1 button, the second using the 2 button, etc.
STEP 4: Press and hold both SEARCH and AUTO-M.
If by some chance you guessed the Owner"s Code, there will be a loud beep and the display will show good before the radio turns off.
If this happens, you are done. More likely, the display will briefly show "ERR" and then change back to the flashing code.
STEP 5: Repeat steps 1-4 until you have a flashing ERR instead of a flashing code.
STEP 6: Press the following buttons in sequence: SEARCH, AM, AUTO-M, FM 1/2. The display should now show.
STEP 7: Set the code to 4989 using the preset buttons, as before.
Press and hold both SEARCH and AUTO-M until you hear a loud beep and the display flashes good.
The radio will then turn off, and you are ready to start listening again.
This will speed you on your way to getting your radio back!
Additional - After 3 failed attempts
I'm going to hopefully help a lot of people out, but at the same time will upset Mazda dealers.
I have the code to unlock Mazda radios with the 'ERR' due to 3 wrong codes.
Do not listen to Mazda book that states 3 wrong codes make CD playing Inop & req replacement...
121 Metro DW10*2 > 203028, MX5 NB30P2, Milennia,323 BJ10*2, 626 GF10S2, Tribute.
Step one:- press one at a time- preset 6, AM, Auto M, Seek ^ (up).
Step Two:-Input this number, 4989.
Step Three:- Press and hold Auto M and Preset 6 together.
Step Four:- The Word 'GOOD' will appear on the screen indicated that the radio will work.
Step Five:- Reprogram new Antitheft code into radio as per instruction manual.
Hope this helps some people out, save you some money also.
====================
In order to reset the radio for a Mazda2 You'll first need to try doing a soft reset.
First give the vehicle power but do not start the engine.
Next go to Your centre console and located the back mute and navigation buttons.
Hold down all three of these button for 10 seconds and your system should reset itself.