i just bought a 2004 prius. its 12v batt was dead, so i charged it up, hooked it up, and tried to start. all i got was a clicking sound from the hybrid battery and the ready symbol flashing and engine light. no codes in the ecu! what to do now please help b 4 i spend lots of cash!!! i know the sings of hybrid batt pack being open and yes some 1 has been in it b 4. love these cars but not come up this type of problem.