i will check the wires later in the day while im at the dealership i plan on having my truck hooked up to there scanner to see if it can point out what the ABS light is lit for


i remember u asking if my truck ran better before it heated up and i hopped in and went straight for a drive and it did seem to actually run better when it was cold, after it had warmed up i notice it was a bit more sluggish on acceleration and shifting was a bit more sluggish.
Im going to disconnect them both and them go for a drive and see how it does

I probably never noticed because ill let my truck set to warm up and im mostly driving highway

 

After coming from the dealership this was all i got


This was the only code that i got when i scanned for abs codes, code 35 for rear sensor open.

 

You already changed the sensor though, right? Gotta be a wiring issue.

 

Yes sir that was the first thing i did was change out that sensor, Ordered one from AutoZone. I still have the box with the old sensor in it.

 

Could it be that my Tone Ring has gone bad? Ive seen online that the tone ring COULD be my issue, i can get it from the dealership relatively cheap for around 30 bucks

 

Yeah, but changing it is a right pain in the keester.... I believe it bolts to the carrier between the flange, and ring gear.... which means, tearing the entire rear end apart. That is a major undertaking. That said, the tone ring is just a toothed wheel. It doesn't physically contact anything, so, there really is no reason for it to 'go bad'. Unless someone had the cover off, and broke it.... You could likely inspect it easy enough thru the sensor hole, with a bright flashlight, and a mirror....

 

I guess ill go under there and start removing old wire loom to see if theres any cut, pinched or touching wires that go to the rear sensor

 

I got rid of all the old wire loom until it goes up into the frame so i could clearly see the wires and i couldnt see anything cut, touching or pinched, no corrosion..

Went ahead and tested rear connector and im getting 4.83v POWER. This is with the ABS module plugged in and key ON


Also did a ground test at the ABS module wires and it read 12.52v to GROUND with module plugged in and key ON

 

Here i am testing the Rear Vss sensor that sits on the rear axle. It is reading 01.9Ohms. I have the multimeter set to 200k… Is this a normal reading??

 

I think there is a spec for that in the service manual... but, not 100% on that.

Do you have a scanner that can read live data??