Civic 03 a/t system malfunction

i just bought a used civic 2003 hybrid and on my first long trip last week, the engine check sign came on and the "D" started blinking,also the IMA doesnt work as its supposed to (almost doesn't work at all). the diagnoses came out as "70-02 A/T system malfunction". please can tell me what this means,its hard to get anyone who does around here.:disappoin