Abs help please!!

MoparMagic'00 · Jun 1, 2014

Hey Guys I have a '00 1500 5.2 auto 4x4 with rwal (rear wheel anti-lock) only and Ive had an ABS+Brake lights on since ive owned it (2 years) ive changed the rear abs sensor on the rear end with no help.. My speedo works fine (maybe a hair off but i am running slightly larger tires) and the cruise works fine.... so im lost.. CODES: codes are the p7202? I believe it says low voltage speed sensor output... and some O2 codes... the only other code i have is a random misfire on #3 that im still trying to figure out

ANY help would be greatly appreciated...

leadrofthepak · Jun 2, 2014

I have the same issue with the ABS and Brake light being on in the dash. They are not on all the time and my speedo has always been accurate. I am starting to think I have a bad ground for that sensor.

Merc225hp · Jun 2, 2014

If its not bad grounds or the rear sensor then that points to the ABS MODULE.

MoparMagic'00 · Jun 4, 2014

Merc225hp said:
If its not bad grounds or the rear sensor then that points to the ABS MODULE.

How would I best tell if the grounds are good? and the sensor is new however I know that is POSSIBLE that its bad from the factory.. and follow up tests would be greatly appreciated.. also if it helps I just passed the 250k mark on all original running gear... minus the transcase...

MoparMagic'00 · Jul 3, 2014

"NEW" symptoms lol I just noticed that my speedo doesn't read until i hit about 6mph also its about 8mph off... but like i said i am running a 285/75/16.. Any ideas on how to diagnose this?

Abs help please!!

MoparMagic'00

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leadrofthepak

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Merc225hp

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MoparMagic'00

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MoparMagic'00

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