What happens if you leave the radio on for an hour?
If you leave the radio on for an hour it will reset itself to “code” or “enter code.” You can then enter the radio code. No need to disconnect the battery. I did this on my lunch hour. Also, if you pressed any keys before entering the radio code then they stayed in the radio’s memory.
Why is my radio stuck on ” wait ” after battery replacement?
Your radio and a few dashboard lights won’t drain your battery that quickly. It’s not as if your subwoofer’s pumping out at 11. Note that some radios get switched off automatically after 20 min. To avoid battery discharge when the ignition’s not on. When that happens, you’re back at square one.
How to avoid reset code after battery replacement?
One way to avoid having to reset code is to plug a battery charger in the 12V outlet before changing battery and leave it in there until you finish. That way power supply is not interrupted and you just connect the new car battery and unplug the charger when you finish. I did this with my ML320 and nothing had to be reset.
Why does my car say wait 30 mins?
The message wait 30 mins. means that the wrong code has been inputted too many times, you need to leave the ignition at acc. with the radio on to let the unit count down, after 30 minutes the unit will ask for the code.
Your radio and a few dashboard lights won’t drain your battery that quickly. It’s not as if your subwoofer’s pumping out at 11. Note that some radios get switched off automatically after 20 min. To avoid battery discharge when the ignition’s not on. When that happens, you’re back at square one.
When do you know if your car battery is dead?
After that half-hour, when you are stopped at home or in a safe place, do a little test. After you turn the engine off, wait at least a minute, then start it again. Wait another minute and start it another time or two to make sure that you won’t be stranded at the gas station or wherever you go next.
The message wait 30 mins. means that the wrong code has been inputted too many times, you need to leave the ignition at acc. with the radio on to let the unit count down, after 30 minutes the unit will ask for the code.
One way to avoid having to reset code is to plug a battery charger in the 12V outlet before changing battery and leave it in there until you finish. That way power supply is not interrupted and you just connect the new car battery and unplug the charger when you finish. I did this with my ML320 and nothing had to be reset.