Hi Terry, I had the same on a 318 the other day, I also changed the wear sensor wires, just in case, but to no avail. Tried my ACR4 , no faults listed anywhere, couldn't find any way of resetting it or reprogramming it so told the customer to try it for a few days and he hasn't come back yet. I'll give him a ring tomorrow, can't get hold of him today, and I'll let you know. HTH, Derek