I have a 98 single cab with the 2.5l 4r44e trans (just a little guy)
So every time I start my truck, it starts out with the ABS light and the BRAKE light on. (the speedometer does not work btw) Once I start driving, it won't shift out of first until I put it in 2nd manually then to get out of 2nd I need to put it back in drive then from there on out it up and downshifts through all the gears (even O/D). But once it gets into 3rd gear and O/D the 'O/D off' lamp starts flashing.
I replaced my ABS Wheel Speed Sensor on the rear diff twice (plus the pigtail). I also replaced the speedometer just to make sure it was not the instrument cluster AND I found another RABS module to make sure it wasn't the computer.
I have seen schematics of the wiring on this truck and I traced 99% of the wires and haven't found any breaks.
I'm running out of options here..