Archived ABS Light on and Speedometer not working

[RI RAm]

After searching the forums I have noticed that a cause for the ABS light and red brake light being on, can be caused by a sensor on the rear differential. Would this cause my speedometer to stop working also? Both things seem to have happened at the same time... Speedometer and odometer stopped and both brake lights are on all the time. Tach still works though.



Thanks for your help



Oh yeah, I have a 99 2500 4X4 with a automatic transmission if that matters.

 

[Matt400]

Would this cause my speedometer to stop working also?

Yes, the speedo gets its signal from there also.

 

[BadDNA]

That'll do it. I had the same thing happen on my truck a few months ago. Got the new part on my lunch break and changed it after work in the parking lot. It took all of 20-30 minutes.