CUSTOMER CONCERN Customer states the 12-volt battery goes dead and the charging system is inoperative. DTCs P1A63, P1A6B, P1A8F, P1A94 and P1AB1 are stored. CAUSE Connector-terminal, power-feed and ground testing confirmed an internal failure of the Starter Generator Control Module. CORRECTION Remove and replace Starter Generator Control Module. Program and configure replacement module. Clear hybrid-system DTCs and verify 12-volt charging operation.