Need help - Ford Mustang Forum
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post #1 of 2 (permalink) Old 3 Weeks Ago Thread Starter
Cowboys's Avatar
Joined: Sep 2019
Posts: 2
Need help

So I went for a drive yesterday and when I got back to my house I turnd the the key back and car stayed on so I disconnected the batte6and waited a little bit hooked battery back up and the car was still in run mood key does nothing had to keep battery unhooked all night please help

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post #2 of 2 (permalink) Old 3 Weeks Ago
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Joined: Sep 2010
Location: Houston
Posts: 6,781
I give up. What model year Mustang are we dealing with?

If this is a 1999-2004 model year, test to see IF there is key off power in fuse F2.34. IF there is, likely your problem is a bad ignition switch.

1999-2004 MY fuse panel schedule:

The ignition switch can be replaced by the DIY'er and does NOT require PATS reprogramming. The ignition switch is not the same as the key cylinder lock.

If asking for an educated guess. Regardless of the model year of your Mustang, a bad ignition switch should be ruled out. They can and do wear out.

2003 GT Convertible (sold & missed)
2000 GT coupe (Craigslist project. Fixed. Now my DD). Windsor to Romeo swap.
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