ok heres my problem
I have a 01 dodge ram 1500 slt 5.2 4x4
ABS lights on speedo doesn't work.
ohm'd out vss to the pcm, the rear axle speed sensor to the ABS module all checks good.
is my pcm bad, this happen about a day after i did the intake plenum gasket
I also replaced both sensors and swapped abs modules
when i do the odomitor diagnostic test I get code 950 and 999
on obdII I got a speed sensor fault cleared it and no code comes back
im completely out of ideas and hoping someone can help me cause im getting really angry over this been working on it 12 hours straight now.

ok now that i have taken a nap and fixed some of this post. It doesn't sound like a man without sleep rambling on as much.
Hope someone can please help me im desperate.

 

go back and check all of your plugs on your motor, if you did the plenum you might have forgotten to plug something back in, or did you replace you speed sensor?

 

Replace the sensor on top of the rear differential.

 

As i said in my post i replaced both and ohm'ed the wireing to the abs mod and the pcm from the vss in the tranny i also got a p0500 code in OBDII log

now i put it all back together and i have the speedo pegged at 120mph so im guessing cluster is working abs light is still on.

does anyone know of a free abs pc program to check the abs module maybe that can pin point me more

i also have a 99 ram 5.9 pcm would it hurt to try that one as a test of the pcm

 

Where did you get your new sensors, and what brand are they?

 

advancedauto they both ohm out to infinate

 

code 950 off the odo could be the ccd for the abs unit. Cab fuse/Disconnect and clean abs connector. At the data link check voltage at pin 3 and 11 what do you get? When you say checked back to the pcm what pins/connector did you pin out? Little more specific would help out. What was the reference/signal voltage at the vss/rwal sensor connector?

edit info/////rare times abs brake lights on its the brake switch under the dash

 

When i ohm'd the vss back to the pcm it was in the center white plug (don't remember the pin numbers) I ohm'd them to ground making sure they weren't grounded before i checked them. (i pulled wire's from the loom so i know i was checking the write one's)

I have not check for output voltage yet i will try to get out today and check.

I'm starting to thing a piece of snap ring from the o/d direct clutch could be blocking the whole on the vss in the tranny but that doesn't explain the abs light so lost...

 

When ohmin out a wire need to disconnect the connector from the pcm inorder to back probe it correctly. Pulling the wire out of the loom wont work and give false reading. Code 950 is a ccd code look in the FSM. X2 pin out the data link. Wealth of info can be had at the data link.

 

yes the connector was unplug i pulled the wire from the loom all the way from the transmission back to the pcm. So i new i had the right wires. im a bit confused by FSM what does this stand for. does anyone know the wire colors that connect the ccd to the abs module or the pcm? Were do those wires come from? I still have to check the read out voltage to the to sensors for Tweeker and the data link voltage data link ohms at 4 ohms if that helps anyone to ground im not sure thats even right.
Thank you everyone for the help this beats banging my own head off the wall solo