Radio Locked Up, due to wrong code entered.....

https://www.carstereocode.com/unlock.php?mk=16

In the owners maunel you should have a card with the radio code on it.

The radio will only display EEE or OFF when the wrong code has been entered and the radio is locked depending on model - this is due to the battery being disconnected and the incorrect radio code being entered 3 times. You will neet to reset the radio. To do this the radio has to be on for either 2 or 4 hours - see the manual for your model. If you got the code from a card from Volvo, and it didn't work, then the radio has been changed or it has been reset by the dealer and your current code is invalid. You will have to pull the radio and find the serial & model number, and get Volvo to look up the code for that radio or the dealer may be able to lookup the radio code via vin# from Volvo. The dealer can reset the radio and enter a new code. When the radio is "ready" to accept an unlock code the display will say "codE". You will need this code if your battery is ever disconnected.

put a battery charger on the battery,turn key to on postion[engine not running] turn radio to on and let it sit there like that for about 5 hours or untill radio say code then enter right code. if battery goes dead during this you have to dtart over

if u put in the wrong code to many times or entered it wrong and it security locked out[SEC] dealer needs to hook up to vehicle to reset the security lockout before u can reset the radio with the correct code

u got the wrong code, simple as that.
make sure u got the rite ser # on the radio. shouldn't have to enter it 3x. once is enuf. cud b that entering it 3x it thinks it's the wrong code.

I believe you have to call the dealership with the code and they will tell you what to enter

either the radio code is wrong or you have locked the radio down you only have three attempts to enter the correct code if this is the case disconnect thenegative battery cable for 10 minutes then reconnect and try again. If the code is wrong the audio unit will have to be removed so you can get the serial number to give to the honda dealership so they can get the correct code

turn the radio off push preset buttons 1 &6 while holding these buttons turn on the radio the serial# will come up call the dealer with this # they should give you the radio code if you have a problem write back i can get it for you if you have error on the radio then disconnect the battery cable neg for aprx. 30 seconds reconnect the enter the code using your preset buttons

If you don't have the code, you probably will have to pay a dealer to get it for you. My dealer said it was on the back of the radio and he had to remove it to find it. I have no idea if this is true.

As to the other problem of entering the code 3 times, and it now showing "off" instead. Simply put your ignition in the accessory position for approximately one hour. "Code" will magically reappear.

This applies to the 2000 Gallant. My code is 7357 if you wish to try it.

to enter your code when the cd player displays error leave cd player switched on and after 20 mins or so i will display 0000 then you will be able to enter your code this happens when some 1 has entered the wrong code