because your radios power cell is dependent on your battery you need to reset your radio, or it may just need time to rechage not sure with your model
Flat battery !
on most vehicles you can reset warning lights by simply unconnected a battery cable
Once your battery is fully charged again. Disconnect the battery Neg. cable for 10 seconds. Then reconnect Neg. cable. Push your remote unlock button to reset the alarm off. Now turn your radio on and check the radio it should be working. We call this a "hard reset" of the module. ^ I just tried the above sequence, and it did not work.
I have Ford Ranger 2004 Model my battery was flat now my radio cant play it says it needs a code.
=When You open the back of the watch, there is a sticker covering the battery that reads: AFTER BATTERY INSERTION, SHORT PADS TO RESET. = Right next to the battery hold down screw, there is a round flat pad, short the +side of the battery (the hold down battery screw is +battery power) to the flat pad. The watch can now be programmed for time, date , etc. It worked on mine!
=When You open the back of the watch, there is a sticker covering the battery that reads: AFTER BATTERY INSERTION, SHORT PADS TO RESET. = Right next to the battery hold down screw, there is a round flat pad, short the +side of the battery (the hold down battery screw is +battery power) to the flat pad. The watch can now be programmed for time, date , etc. It worked on mine!
No, it will not damage the car at all, you will need to reprogram your radio when the new battery goes in though.
I've just installed a new car radio, and even though it is switched off (and the face has been removed) with the rest of the car completely off, the battery is flat 2 days later. You have a dead cell in the battery or something else is on draining the battery. A radio that is not on will not drain a battery in 2 days or even 2 weeks.
Using the electronics (lights, radio, cranking engine but not starting, etc) without charging the battery. If you charge your battery, the car starts and runs, but goes flat in a short amount of time, it's possible your alternator is not working properly.
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