Sounds like a blown fuse that supplies power to those circuits. Locate the blown fuse/ replace it/ if it pops again, unplug the o2 sensors/ replace the fuse again, if it doesn't pop, plug in 1 sensor at a time until the fuse pops, I have found the heater in a o2 sensor can short to ground just because. Or you may need to unplug the transmission connector or any item on that fused circuit. Do you have a schematic?