W CAR ECM PCM COMPONENT CROSS REFERENCE CHART CON T PRODUCTION PRODUCTION SERVICE REMAN MODULE BROADCAST MODULE SERVICE PRODUCTION ECM PCM CODE ECM PCM EPROM EPROM CODE 1993 16181441 BCFA 16149396 16181397 1705BCFA 16182651 BCKP 16149396 16182728 27308CKP 16182191 BCJS 16149396 16182486 2487BCJS 16184471 BCZC 16172693 16181351 BCDT 16149396 16181583 1585BCDT CONTAINS EPROM WHICH MUST BE PRODRAMMED IN DEALERSHIP NOTE SERVICE MODULE WHICH INCLUDES CONTROLLER AND EEPROM CALIBRATOR WHICH MUST BE PROGRAMMED IN DEALERSHIP NOTE Due to Clean Air Act calibrator is now called an EPROM and Controller I is now called a Module PCM Powertrain Control Module Controls both Engine and Tr ission ECM Engine Control Module Controls only Engine When replacing the Production ECM PCM Module with a Remanufactured ECM PCM Module it is important to transfer the Production Broadcast Code And Production ECM number to the Remanufactured ECM Module Label Please do not record on ECM Cover This will enable positive identification of ECM PCM Components throughout the service life of the vehicle 9 D 1 T 1993 GENERAL MOTORS SERVICE PARTS OPERATlONS BUlCK 45W 2 93 3 39 3 999