Well I havent been able to work it cause the weather is frezing here but I did have to pull the abs fuze out because lately with the cold when ever I go to start the truck the abs pump will run for like 2 min then shut off kinda wierd but I didnt want it to burn up the abs so I guess I will try to work it when it warms up or If I can get some shop time at a friends, oh well only real bad thing about it is not having a speedo

 

i pulled a fuse on my by accident (dont remember which one) and it did what yours is doing i would go through your fuses and check them it would be the cheap start. and perhaps a simple fix
good luck keep us posted

 

Mine's doing the same thing...first ABS light then no speedo. havent had time to really dig into it yet.

 

<Bump> for further info and help for me as well. Sorry about the hijack!

I have run my truck for the last two years with the ABS and brake lights on and the ABS fuse pulled. The ABS about caused me to t-bone a minivan full of kids in an intersection during a snowstorm. I got out in the intersection and threw the fuse into the street and never looked back.

The other day I noticed the check engine light came on. Looked over and the speedo wasn't working. Went to O'reilly's to scan it on their junk scanner. It returns a p0500 "vehicle speed sensor". It will not clear.

To the best of my knowledge there are two speed sensors on the truck. One is "vehicle speed" in the tranny, the other is "wheel speed" in the rear differential. I'm not a tech, but I assume that the rear diff is for the ABS only.

Today I replaced the "vehicle speed" in the tranny with a factory mopar part. Still has the p0500 code that will not clear, and speedo is dead.

The question: Is the "wheel speed" in the rear diff only for the ABS system or does it also play a role in the BCM's control of the speedo? The sensor is only $20 or so at the dealer, but I'd like to not just throw parts at it.

 

these are all good things to think of, but not in this situation. my truck did the same exact thing last weekend. driving along just fine, hit the brakes and this one time, truck pulled left and pedal was stiff. lights have come on few times before but never pulled to one side or the other. the above mentioned things would cause the pulling all the time. in another thread, "jumper" told me to check the front hubs and abs sensors for play/damage. gunna try and find time this weekend. hopefully between all of us we can fix this crap!

 

Check the ABS sensor on the top left side of the differential. If wires are chafed or pulled it will throw the ABS light on. I was also told by Dodge that if this sensor goes out you do NOT have ABS breaking. Had a tail pipe beat the sensor wires into a short. Rough Yukon roads and heavy Fiver.

 

Another thread with no solution......