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Old 05-15-2014, 03:53 PM
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Keep Blowing #3 fuse

Driving the other day I noticed that my scan gauge was working. Thought maybe the scan gauge died so I tried it on another vehicle and it worked. So I figured my OBD 2 port was not working. I looked up why it wouldn't work, everybody said to check the #3 fuse. I did and it was blown, I replaced it, connected the batteries and it blew again. I'm not sure what the problem is. Any help would be greatly appreciated.
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Old 05-16-2014, 12:29 PM
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In your owners manual, what does it say the fuse that's blowing is protecting?

#3 doesn't make sense to me, be sure you're looking at the right number....
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Old 05-16-2014, 12:40 PM
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Quote:
Originally Posted by NoRalPh View Post
In your owners manual, what does it say the fuse that's blowing is protecting?

#3 doesn't make sense to me, be sure you're looking at the right number....
It says it's the obd2 and cigarette lighter. I don't know if this helps but the problem started after I had to change the shifter bar that runs along the steering column. I had to take out the key tumbler and the shroud over the steering column. But yes it's the #3 fuse. Thanks for your reply.
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Old 05-16-2014, 04:24 PM
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See, on a '01 it's hard to know which fuse panel you have. My '02 says "Empty" for #3. There was a major electrical change during the '01 run...

One of the power supplys to the PCM is shared with the OBD port so if it's blown you don't have a running PCM and it's Never gonna start (you don't have a WTS light I assume?)

Could the outlet be shorted (you know, one of the kids put a dime in it )

I don't know if it could be related to the key tumbler, did it go back easily? Maybe take the column covers off again and look around for a wire problem, take the ign cyl out and look at that too.
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Old 05-16-2014, 04:42 PM
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I guess I have the fuse panel you dont have. But I do have a WTS light and the truck runs and drives perfect. Both cigarette lighters are clear. Everything went back together fine except for the connector that sits in where the tumbler goes. From everything I've read this has me stumped.
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Old 05-16-2014, 04:51 PM
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I vaguely remember hearing something about a short in the column
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