ABS And Brake Light On After Lift Install

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grim hurst

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I have replaced abs speed harness twice. The abs and brake light still on. How to fix it?


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drakon543

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find someone with an appropriate scanner to scan for abs codes and it should point you in a better direction. you could have a bad wheel hub, bad speed sensor somewhere or just a bad plug or wire harness somewhere.
 

iamdub

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Does the GMT800 have the harness connector on top of the frame rail, above the shock bolt area like the GMT900? If it does, it may have been knocked loose when backing out that top shock bolt.
 
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grim hurst

grim hurst

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Does the GMT800 have the harness connector on top of the frame rail, above the shock bolt area like the GMT900? If it does, it may have been knocked loose when backing out that top shock bolt.
Thats the first one ive checked ‍♂️
 
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grim hurst

grim hurst

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find someone with an appropriate scanner to scan for abs codes and it should point you in a better direction. you could have a bad wheel hub, bad speed sensor somewhere or just a bad plug or wire harness somewhere.
Cant be the wheel hubs. Those a brand new timken; ive replaced all components during the installation of the lift kit.
 

Fless

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find someone with an appropriate scanner to scan for abs codes and it should point you in a better direction. you could have a bad wheel hub, bad speed sensor somewhere or just a bad plug or wire harness somewhere.


^^^ This. An advanced scanner that can read ABS codes can help us stop chasing our tails. And, there's no guarantee that a NEW part works 100%. NEW = Never Ever Works
 

drakon543

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Cant be the wheel hubs. Those a brand new timken; ive replaced all components during the installation of the lift kit.
did the wheel hubs on my 97 brand new timkens aswell and the passenger side wheel speed sensor got warrantied by timken because it was faulty. advanced scanner pointed me right to it.
 

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