battery disconnect for weeks? - Ford Mustang Forum
 
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post #1 of 11 (permalink) Old 12-24-2015 Thread Starter
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battery disconnect for weeks?

I am doing several winter projects on my car. I have disconnected the negative battery lead. Is leaving the battery disconnected for extended length of time lead to any problems? Simple question I know but so much on this car is high tech and I just thought I would ask.


2013 gt premium m6 3.73 with lots of aftermarket bits


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post #2 of 11 (permalink) Old 12-24-2015
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No problems that I`m aware of, other than resetting the radio presets.


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post #3 of 11 (permalink) Old 12-24-2015 Thread Starter
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Quote:
Originally Posted by kenv View Post
No problems that I`m aware of, other than resetting the radio presets.


that is what I thought, better than setting off an air bag - my biggest fear in taking the front bumper off and working under the dash.

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post #4 of 11 (permalink) Old 12-25-2015
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Should really disconnect the positive lead to work on the car. You can create a ground path with a tool but you can't create a power path.

2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto tune, 100 shot on BBR tune, best et: 11.38 at 120.85

2012 GT, Candy Red, Brembo, 3.73, Tech, Comfort, etc. Procal tune, Roush upper, UMI LCAs, Steeda red bracket, GT500s, 28X10X16 Hoosier slicks, best et: 11.91 at 115.23 RIP
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post #5 of 11 (permalink) Old 12-25-2015
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You'll also reset you Adaptive Learning Strategy. Not a big deal but when you dive it again you'll loose some MPG and I think you are suppose to drive around with the A/C on for 15-30 min or something like that...
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post #6 of 11 (permalink) Old 12-25-2015
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You may have to re-enter your radio security code. For most people its still "0000".


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post #7 of 11 (permalink) Old 12-26-2015
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Radio Security Code?


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post #8 of 11 (permalink) Old 12-26-2015 Thread Starter
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Quote:
Originally Posted by Dana W View Post
You may have to re-enter your radio security code. For most people its still "0000".
interesting, I checked the owners manual and I can not find reference to a radio code. How does one determine what the code is set at ? Purchased my car used.

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post #9 of 11 (permalink) Old 12-26-2015
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You may not have a code. Some MFG's don't do them any more. This was a big thing starting in the late '90's. It is probably a moot point these days.

The code is/was an anti theft measure. In our old Suburban, and our two old Volvo's, if the radio received no power for a certain length of time, usually less than 1 hour, one had to enter a 4 digit numerical code. Most people never remembered to change it, so it was almost always still four zeros. If the radio needed a code, it would say Enter Code when powered back up, and refuse to work until you gave it the correct one.

Forget I mentioned it. Now the stereo head is probably matched to your computer, and will only work in your car.

I think a lot of the after market stereo's still use a security code though.


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Aint ever seen that on either of the S197s I have owned and both had premium stereo and tech.

2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto tune, 100 shot on BBR tune, best et: 11.38 at 120.85

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Quote:
Originally Posted by 5LHO View Post
Aint ever seen that on either of the S197s I have owned and both had premium stereo and tech.
Yeah, like I mentioned in my post edit, the codes are probably too old school for the newer cars.


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