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Discussion Starter · #1 · (Edited)
2012 5.7 Tundra Crewmax wont start after new battery install

Hey Guys,

I had purchased a battery and had not had time to put it in last week.
Trying to finish everything at work to go deer hunt the last weekend of the season!

Anyway, truck would not start so i put the battery in quickly.
In my haste, i reversed the polarity and the horn beeped solid.
I turned it around and hooked it back up.
Now the truck turns over but wont crank.

In the manual it says to turn the ignition on, the cycle the sunroof to reset.
But the sunroof does not work!

Any suggestions sincerely appreciated!
 

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Check all of the fuses under the hood first. Replace any that are popped like your ignition fuses. If any are bad and pop when replaced you have some more work to do in tracking down the fault.
Hopefully you haven't damaged anything else like the ECM or any number of other computer/components and it is that simple.
 
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