ll II A CAR ECM COMPONENT CROSS REFERENCE CHART CONT D PRODUCTION SERVICE SERVICE PRODUCTION PRODUCTION BROADCAST CONTROLLER CALIBRATOR CALIBRATOR ECM CODE ECM PROM PROM CODE 1990 16086801 ALYJ 1227730 16150270 2599ALYJ 16086811 ALYK 1227730 16150274 2595ALYK 16132401 APUS 1227730 16150336 2354APUS 16138581 ASAH 1227730 16150194 8727ASAH 16138591 ASAJ 1227730 16150198 9731ASAJ 16143611 ATCF 1227730 16143770 3772ATCF 16143621 ATCH 1227730 16143775 3776ATCH 16128984 ANWM 1228706 16133736 3737ANWM 16128994 ANWN 1228706 16133744 3741ANWN 16129004 ANWP 1228706 16133745 3746ANWP 16129014 ANWR 1228706 16133750 375lANWR 16132534 APWT 1228706 16134134 4135APWT 16145991 ATRB 1227748 16146061 6062ATRB 16146001 ATRC 1227748 16146065 6066ATRC 16145991 ATRB 1227748 16146061 6062ATRB 16146001 ATRC 1227748 16146065 6066ATRC 16146541 ATSR 1227730 16150270 6603ATSR 16146551 ATSS 1227730 16150274 6608ATSS 16146561 ATST 1227730 16150194 6615ATST 16146571 ATSU 1227730 16150198 6624ATSU 16143181 ATBF 1227730 16143513 3514ATBF 16150351 AUHT 1227730 16150336 0337AUHT 16148781 AUAP 1227730 16150270 027lAUAP 16148791 AUAR 1227730 16150274 O275AUAR 16148811 AUAT 1227730 16150198 Ol99AUAT 16148801 AUAS 1227730 16150194 0195AUAS 16152521 AUSN 1227730 16152690 2692AUSN 1991 16137161 ARRY 1227730 16145250 5251ARRY 16137171 ARRZ 1227730 16145254 5255ARRZ 16137201 ARSC 1227730 16148592 8593ARSC 16137211 ARSD 1227730 16160259 8598ARSD 15139804 ASJW 1228706 16149667 9668ASJW 16139814 ASJX 1228706 16149671 9672ASJX 16139844 ASKA 1228706 16149683 9684ASKA 16138781 ASAT 1227748 16148882 8883ASAT 16138791 ASAU 1227748 16148886 8887ASAU 16156154 AWMX 1228706 16156174 6175AWMX 16156164 AWMY 1228706 16156178 6180AWMY 16160281 AXFH 1227730 16160259 0260AXFH 1992 16153984 AUVS 1228706 16163534 3535AUYS 16153994 AUYT 1228706 16163538 3539AUYT 16154004 AUYU 1228706 16163542 3543AUYU 16154014 AUYW 1228706 16163530 3531AUYW 16154284 AWBZ 1228706 16163692 3693AWBZ 16138781 ASAT 1227748 16148882 8883ASAT 16138791 ASAU 1227748 16148886 8887ASAU 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 do not record on ECM Cover This will enable positive identification of ECM Components throughout the service life of the vehicle 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17A 3 999 3 96 5 91