518

Careful, these are computer controlled, best to see if it faulted through the computer, by seeing if it threw a code, but it most likly is a physical failure.

Not sure if this works on a CPU controlled transmission, but you can tell if you've lost band assist by putting the trans in manual low and drive it, then let off the gas. If it drags down, the band assist is working, if it acts like you stuck it in neutral (engine idles down, vehicle rolls at same rate), there's no band assist, ergo, a servo or band is screwy.

Mark.