Help hope this is the right place 01 dodge ram
#1
Help hope this is the right place 01 dodge ram
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.
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.
Last edited by Bob1500; 05-18-2011 at 09:42 AM. Reason: wrote it at 4am and was a bit confuseing
#2
#3
#4
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
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
#5
#7
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
edit info/////rare times abs brake lights on its the brake switch under the dash
Last edited by tweeker909; 05-18-2011 at 06:12 PM.
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#8
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...
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...
#9
#10
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
Thank you everyone for the help this beats banging my own head off the wall solo