ABS not working

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ram.

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5.7 hemi
hey I have an 07 that I just bought this summer and just realized that the ABS doesn't kick in at all. The ABS light does come on when I start the truck. Any Ideas?
 

Rlaf75

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How do you know the ABS isn't working? Does it have any codes?
 
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ram.

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no codes but all 4 tires lock up right away
 

justin13703

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Maybe the abs module itself? All 4 tires locking up right away is a really serious problem though. The backs normally shouldn't see enough pressure to lock up easily.
 
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ram.

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long as there is a little snow on the ground they'll lock up
 

justin13703

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I'm not sure if there is a fuse for the abs on the trucks with the TIPM box. That would be where I'd start though if you haven't checked already.
 
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ram.

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i did look there was a fuse so I switched it with the fuse for the power seat. It didn't help
 
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