Hi all,
So my 03 td6 traction control is unusable, it locks a back wheel on and won’t let you go anywhere. In frustration I plugged it into my icarsoft v2.0 and read the live wheel speed data. It seems that only the front left wheel is doing a speed that matches the speodeter and the other 3 are exactly half of that. Is it the case that all 3 are bad and read exactly half or is somthing else occurring, all tyre sizes are exactly the same. There isn’t a light on the dash either
Many thanks

Having 3 speed sensors go faulty together is most unlikely, so I would personally suspect the front left, despite what your icarsoft is telling you.

Had to replace my front left sensor recently as well. If you replace it, be careful what part number you get. The connector colour is significant. https://www.fullfatrr.com/forum/topic70721.html