Cadillac Repair: 97 Cadillac gone nuts, charge battery, dash lights

Question
I have this car and it has started just dieing...won't stay running for longer than a minute. Am getting 8 current codes:PCM P0155,IPC U1255, RSS 1738;1785;1783, MSM B0856,B1983, MMM B1983. Am also getting a no charge battery light...when it is running it just slowly and calmly dims all dash lights , jerks a little, then dies.

Answer
The FIRST thing you need to do is put a battery charger to maintain normal battery voltage as the computer goes nuts when the voltage drops below 8 volts.

CLEAR (erase) ALL the codes from the computers and then recheck the computers for any fault codes that return and let me know what returns as HISTORY or CURRENT codes.