speedo issues with ABS light 2006 PSD

[jetboy]

Nice weekend for small issues..

27K and no problems then I got the blower stuck on high.. I'll check the control module transister for that.

Second..... cruising along at 70 MPH and the cruise kicks off and the truck acted a little weird.. I thought the engine quit but I saw the speedo at zero then back to 70 then back to 0 and then it came back to 40 then went to 70MPH. The ABS light came on..... Speedo worked good after that. I stopped at the truck stop and I cycled the key 10 or so times and the ABS light went out for a few miles then the same thing happened again. ABS light is on again then the speedo jerked around a split second then back to working fine with a solid ABS. Can't reset the ABS like I did the first time.

Is the sensor in question the one on the back of the differential???

[jetboy]

ohmed out the rear speed sensor at 1.8 ohms, then turned the leads around and got 2.4 ohms. Reinstalled and took the truck out and the abs light went out after a few miles. Ill have to see if it stays out.

[jetboy]

heater now working after changing the control module.

[james michael]

You know my 2003 6.0, MPH Guage, didn't work & ABS light came on then truck stopped dead in her tracks. Come to find out, my alternator decided to **** the bed when I was about 400 miles from home. Nice and you know the price for a new alternator is about $235 bucks,,,, started my trip with a bang.

[pheasanthunter]

I had the same problem replaced the speed sensor never happened again