gearbox electrics problem

hi i have an a4 b5 2.8 avant automatic, it went into gearbox limp mode and when i reversed the car to move it i lost all drive, i found water in the drivers footwell and drained and cleaned water drains in battery tray area and footwell on inspection found the ecu was rotten and terminals corroded, replaced and had ecu recoded by audi and terminals sorted out, the gearbox is still in limp mode with no dash selector lights, any advise will be good as zero pence in my pocket

What are the fault codes??

i have p1625 and p1749 i know what they mean, do you know if the can has a control unit or go through a body control unit as my manual has not turned up yet

Hi The can drive line is connected to the gateway control unit in the dash panel insert.

hello thanks for the info just one last thing am i right in thinking that the control units can not be coded with a faulty data-bus system