So you a 3-1 and 3-4 let me look into it.

OK the 31 and the 34 could be from an open or short from the modulator to the tcs/abs control unit,a bad modulator or control unit.
The best thing to do is look over your wiring and then take it into a dealer for diag trying to find and open or short inside a harness is very hard if their is no damage to the out side.