I posted this same reply to this same question in another thread (267)
if by the "outputs to the relay ground is missing" you actually mean that the circuit to battery negative is open in the control circuit that pulls in one or the other directional contactors, this is the correct (default) action from the controller because some of the functions have not happened that are required to drive. it is not correct to consider "ground" [as in an automotive chassis negative ground] and I much prefer to use the term negative leg of the circuit.
in an ev 100, code 44 indicates that 1 rec did not properly turn off, so a bad 2 , 5 rec, 22 snubber, or bad 1 rec, or some other input at t2 that is causing a high postive voltage potential at t2 that does not drain when rec5 "looks ahead".
code 71 says incorrect inputs from regen current sensor. check for continuity on the green lead that goes from the current sensor on the regen contactor's heat sink to A plug (outside of the smaller 2 plugs) on the logics card.
my instant WAG would be that you may have reinstalled one or more of the SCRs incorrectly.