PRODUCTION SERVICE SERVICE PRODUCTION PRODUCTION BROADCAST CONTROLLER CALIBRATOR CALIBRATOR ECM CODE ECM PROM PROM CODE 1988 CONT D 16084731 AKXX 1227165 16083268 3269AKXX 16084741 AKXY 1227165 16083286 3287AKXY 16084751 AKXZ 1227165 16083292 3294AKXZ 16087171 AMAX 1227302 16087043 7044AMAX 16087181 AMAY 1227302 16087047 7048AMAY 16087211 AMBD 1227302 16087052 7053AMBD 16087221 AMBF 1227302 16087038 7039AMBF NOTE when replacing the Produciton ECM Controller with a Remanufactured ECM Control er it is important to transfer the Production Broadcast Code and Production ECM number to the Remanufactured ECM Controller Label Please V do not record on ECM Cover This will enable positive identification of ECM Components throughout the service life of the vehicle 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17F 3 000 GROUP ECM COMPONENTS 6 REV 6 88