I J 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 16176211 BATX 1227730 16176352 6354BATX 16176221 BATY 1227730 16176357 6358BN 16176231 BATZ 1227730 16176362 6364BATZ 16176241 BAUA 1227730 16176367 6368BAUA 16171031 AZTA 16134847 16179791 BBSY 16159282 16179892 9893BBSY 16179801 BBSZ 16159282 16179806 9897BBSZ 16179811 BBTA 16159282 16179902 9903BBTA 16179821 BBTB 16159282 16179906 9907BBTB 16181451 BCFB 16045150 16181434 15888CFB 16181461 BCFC 16045150 16181435 1592BCFC 16171021 AZSZ 16177071 BAYF 16134847 16177081 BAYH 16134847 16181451 BCFB 16045150 16181434 1588BCFB 16181461 BCFC 16045150 16181435 l592BCFC 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 is now called a Module PCM Powertrain Control Module Controls both Engine and Tranmission 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 ositive identification of ECM PCM Components throughout the service life of the vehicle I 1993 GENERALMOTORSSERVWEPARTSOPERAUONS HEVROLET 18J 3 999 3 14 2 93