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I disconnected/ connected the battery and radio does not work

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Why did my radio stopped working?


double check all your connections. you can always bench test the radio with a car battery and any speaker. find your 2 hot wires and 1 ground. (1 hot wire is for memory, but with some radios it will need power also to bench check) make sure all your radio fuses are good, run a set to the speaker, then run the wires to the battery. if the radio powers up, the problem isn't the deck. this has worked for me several times.

you can skip connecting the speaker, but I prefer to make sure everything works before I reinstall.

Jul 05, 2014 | 2002 Ford F150 Regular Cab

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DISCONNECTING YOUR BATTERY without losing the RADIO CODE


I constantly read frequent requests for RADIO CODES referring to the disconnection of battery power ( whether its for changing the battery, etc.) and the radio is now INOP. Here is a simple way to save radio codes, radio stations, clock time and computer settings. Purchase from an auto parts dealer, a 9 volt battery powered lighter socket connector. Plug into lighter, do your battery work, After work is completed, disconnect, and radio will work as before. Unit will cost less than 20.00 and well worth it.

on May 11, 2009 | 1993 Cadillac DeVille

1 Answer

I was having this problem with the Honda radio and I have since replaced it with an after market one. I still have the problem with needing to disconnect the battery for the radio to work for a little...


a new radio?, or used, make and model # , must i guess?
all modes on the radio dead, AM/FM,CD/USB/IPOD jack
ALL, that be the first tests and if all bad that means you lost power.
does the radio scan? show signs its trying? when asked, LCD live? or dead. all i know is the word PROBLEM (vast possible)
did you ask the maker of said radio.
did you follow the new radio's instructions sheet.?

disconnecting the battery, wow !

the radios can have 3 or 4 power pins.
1: Radio power (head end power)
2: dial light (goes to car park dimmer)
3: some have a memory wire, if not connected all programming will be lost. this must go to HOT ALL TIMES line.
4: electric antenna, (it's an output but is power)]

and at least 1 good speaker connected.
and for AM/FM any test antenna or just a wire 12ft long works.
the radio can be bench tests.
1 battery 12v
1 radio
1 speak or 2.
1 antenna. now can test for days like this..... anyone.

Sep 23, 2013 | 2005 Honda CR-V

1 Answer

Hi all....I've got a 2001 Fiat Punto, and after disconnecting the battery the radio is asking me for code. When I turn on the radio, it says


Most car radios need a code when theyve been disconnected , also some car radios are made to turn off after 20 mins use so that it cant be left on accidently , this is a battery saving idea , it can be bypassed though by rewiring a live connection to the radio rather than a connection through the ignition

Sep 23, 2012 | Car Audio & Video

1 Answer

Radio looks like it is working but has no sound, got another radio still has no sound


two things. The speakers can be bad and a power wire for the amp section of the radio can be off. Check all the fuses in the under dash fuse panel as any of them might be the one. the speakers can be tested y connecting a 9 volt batterry to the wires going to the speakerand it should pop as the battery is connected and disconnected. Don't leave it connected too long as it'll blow out the speaker. The chassis ground of the radio might be disconnected as it's a cable that's just connected to the dash frame and the radio.

Feb 04, 2011 | 1999 Chevrolet Lumina

1 Answer

My battery in my 2001 yukon would drain over night, i took it to the dealer and they didnt find anything wrong with it. so i disconnected radio n my battery stoped draining, so my question is, is my radio...


your battery memory is connected directly, keeping your preset channel and the clock working. look for a bad ground to the radio before changing it

Jan 02, 2011 | 2001 GMC Yukon

1 Answer

How to remove the factory installed radio?


Hello,

To remove the radio of your car, follow the process below:
  • Turn the vehicle off and disconnect the negative battery terminal cable from the car battery before working on the radio.
  • Take off the dash trim area around the car radio. You may need to use the flat head screwdriver to carefully pry the paneling and trim off. Some cars use plastic clips or screws to hold the dash trim in place. Locate any clips or screws and remove them.
  • Use the Phillips head screwdriver to unscrew each of the screws holding the car radio in place. Most car radios are held in place by four screws, one on each corner. After removing each screw, carefully slide out the entire car radio.
  • Disconnect the wiring harness, main power supply and ground wire from the back of the radio. You may also need to disconnect any antenna connections or speaker connections.
Take care and good luck

Oct 31, 2010 | 2002 Lincoln LS

2 Answers

S70 instrument cluster not working


Hi,

I had a similar problem. The speedometer didn't work. This is going to sound a little strange, but, at some point the battery died. When the new battery was put in, all of a sudden the speedometer worked again. Can't explain it, but it's true. Maybe just disconnecting and re-connecting the battery would help you, BUT BE CAREFUL about the radio. When the battery is disconnected (or dies) you have to put the radio code in again to use your radio. Make sure you have the 4-digit radio code before you disconnect the battery. If you enter it 3 times and fail, google what to do then.

Dec 04, 2009 | 1998 Volvo S70

1 Answer

Battery died for no reason


About the only thing you can do is disconnect the battery and connect them again after 5 minutes. If that do not work check for blown fuse. Other than that then the XM radio has been damaged by the charger.

Nov 14, 2009 | 2006 Buick Lucerne

1 Answer

El radio code - bATERY DISCONNECTED


Dear Customer,

If your other system worked batter on this new battery,

1.than check your radio [power syupply connection
2.than if still problem you have to do check your radio system with another car system,
3,than you get your problem, solution definetly...

THNX

May 17, 2008 | Ford F Cars & Trucks

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