This listing is for part number 12704475 ECM that is programmed/flashed for your vehicle with the newest updates from GM using your VIN to match your vehicle. After you purchase the ECM you will need to provide us with your VIN so we can program the ECM before we ship it to you. This computer will fit these part numbers 12704475 12692069 12680656 12686383 12688528
Upon installation if the vehicle does not start a theft relearn will need to be done using the GM programming system Tis2web/Techline Connect.
NOTICE: This is the responsibility of the end user. We sell engine computers programmed to your vehicles vin and the correct calibrations, it is the buyers responsibility to do the vehicle theft deterrent relearn, as well as any other relearns or setup procedures for example injector setup, crankshaft variation relearn etc.
This part will fit these makes and models with these options
CORVETTE 18 Electronic Control Module; (RH cowl under dash)
SILVERADO 1500 PICKUP 18 Electronic Control Module; (LH front engine compartment), ID 12680656
SIERRA 1500 PICKUP 18 Electronic Control Module; (LH front engine compartment), ID 12680656
CORVETTE 19 Electronic Control Module; (RH cowl under dash), VIN 6 ( 8th digit, opt LT4 )
ESCALADE ESV 18 Electronic Control Module; (engine compartment)
EXPRESS 2500 VAN 18 Electronic Control Module; (LH rear engine compartment), 4.3L
SAVANA 3500 VAN 18 Electronic Control Module; (LH rear engine compartment), 4.3L
EXPRESS 3500 VAN 18 Electronic Control Module; (LH rear engine compartment), 4.3L
SUBURBAN 1500 18 Electronic Control Module; (LH front engine compartment)
SAVANA 2500 VAN 18 Electronic Control Module; (LH rear engine compartment), 4.3L
CORVETTE 19 Electronic Control Module; (RH cowl under dash), VIN 7 ( 8th digit, opt LT1 )
ESCALADE 18 Electronic Control Module; (engine compartment)
TAHOE 18 Electronic Control Module; (LH front engine compartment)
SIERRA DENALI 1500 18 Electronic Control Module; (LH front engine compartment), ID 12686383
YUKON XL 1500 18 Electronic Control Module; (LH front engine compartment)
YUKON 18 Electronic Control Module; (LH front engine compartment)
XTS 18 Electronic Control Module; (3.6L), VIN 8 ( 8th digit, opt LF3 )