[sanders71]

2001 2500HD 8.1L Allison 5 speed transmission. The ABS indicator and brake light came on during a few easy stops where the abs activated even on dry pavement and slow speeds. During the same trip and just a few miles later, the transmission kicks out of gear and the indicator flashes. Putting in neutral and back into drive the truck will move but only for a few feet before it does it again. Does the same in any gear, neutral "resets" it then it kicks out again. Only code I'm getting is a p1781 which I think is a transmission code but not sure. Could these two issues be related as they both occurred at the same time? I'm kind of at a loss right now trying to diagnose. Thanks