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Worked on the car unhooked battery and have lost the code

Unhooked battery and lost code

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Hello,good day,hoping code for radio?ask your dealer for radio code,ty

Posted on May 11, 2009


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My car radio and CD is not working at all when i change battery.

some cars have security in the radio and if it was turned on when you unhooked the battery the radio probably lost the code. unfortunately you will probably need to take it to a dealer to get the radio unlocked.

May 19, 2016 | 2014 Ford Taurus

1 Answer

What code is spn 3326 fmi 10? Can I clear this by unhooking battery cables?

The codes are typically stored in the computer which controls the particular circuit it controls and unhooking the battery cable does not reset the codes.

Apr 04, 2015 | Cars & Trucks

2 Answers

I unhooked the battery and upon replacement of the battery the radio is not working

If the stereo has CODE written across the screen you need to enter the security code which is usually on a plastic credit card style card which is found in the owner service and manual pack. Or it may just be written somewhere in the pack.

Jun 02, 2014 | 2004 Honda Accord

1 Answer

Radio stopped working on my 2003 honda odyssey

Most honda's radios had a theft deterent system that requires a 4 digit code to be entered after power to the system is lost. If you do not have a code setup, look in your owners manual, some had a factory set code to unlock and allow you to set your own code. If not, you may need to see a dealer as they would be the only ones I know that would have the capability to unlock it.

Apr 27, 2012 | 2003 Honda Odyssey

2 Answers

Engine light on-replaced sensors still on

When you fix most anything triggered by a "Check Engine " light, you have to clear the computer. There are 2 ways to clear it. One is to unhook the Neg cable from the Battery for 10 minutes, the other is to use a scanner.

Sometimes there is a problem when unhooking the Battery as it affects other things when the power is lost. You can get this service done for free at Autozone or Oreillys and they will rescan your vehicle. There may be different codes showing now that you have changed some parts and it may be the better way to go.

If you used the Battery cable removal technique and the light still was on, you would need to rescan your car anyway. If you have a question about codes you can contact this site.

Jan 14, 2011 | 1998 Ford Explorer

1 Answer

Water pump replaced...stalls when foot is off accerlator

If the engine is stalling with your foot off the pedel then look at the iac motor,make sure it is plugged in,also check for stored trouble code,then erase them,if you had the battery unhooked when doing water pump then this is normal,just keep the rpm up for a few min to let ecm relearn idle speed, when the battery is unhooked all the learned info in ecm is lost, i.e idle,shift points etc...

Sep 28, 2009 | 1997 Jeep Grand Cherokee

1 Answer

Unhooking Battery Cables

unhooking the battery won't clear the code it's still stored in the hard set memory go to shcucks and have them scan the computer ask them to see if the codes are cleared if not you can clear them they can't it is an OBDII car once you have cleared the problem drive it and see if it comes back, be sure to get the codes printed out before clearing the codes the mechanic will need them if it comes back, there are hard codes and soft codes soft codes can be reset by unhooking the battery but not hard codes. Don't bother with unhooking the battery.

May 27, 2009 | 2003 Chevrolet Cavalier

1 Answer


needs reprogramming covered under a tsb at the dealer

Feb 09, 2009 | 2000 Ford Expedition

1 Answer

Bmw radio code for 1993 325 i

unhooking your battery is not good on your computer mostly bmw because of all the components in your system are computer control so unhooking your battery is not a good idea..anyways you might check your owners manual it should have code..

Dec 31, 2008 | 1993 BMW 3 Series

1 Answer

Unhooked battery

Eclipses have a Anti Theft Feature on the Stereo.

Its a simple fix. Contact your local dealership and they can give it to you by looking up your cars VIN number. To enter the code (its 4 digits) you simply use the 1-4 programed station buttons to cycle the numbers. Once the code is displayed, hold the FM button and it should work. I recommend writing the code down somewhere, any time you leave the battery disconnected or get a jumpstart you'll likely have to reenter it.

As for your AC Compressor not working, I recommend checking the fuses.

Aug 09, 2008 | 2001 Mitsubishi Eclipse

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