For Reference only! AURORA 01-02 Elec Cont Unit (ECU); (LH eng comp), 4.0L AURORA 03 Elec Cont Unit (ECU) DEVILLE 00-03 Elec Cont Unit (ECU); (LH eng comp) ELDORADO 00-02 Elec Cont Unit (ECU); (LH eng comp) SEVILLE 00-03 Elec Cont Unit (ECU); (LH eng comp) SSR 06 Elec Cont Unit (ECU); (next to air box) Please make sure to match the Part Number of the item with the one you have. All Modules have to be reprogrammed/repaired. We do not provide reprogramming/repair service. We are also not responsible for any kind of labor cost or reprogramming cost. In case of a return, Buyer will only be covered for the item price. This ECM is a core, recommended to be repaired/re-manufactured before installation. ECM appears to be in good condition but has not been tested. Please review all photos and the part number as this is the exact unit you will receive. All orders going to Alaska, Guam, Hawaii, Puerto Rico, and other U.S. Territories will be shipped out with USPS Priority Mail. Orders placed within the 48 states will be shipped with UPS Ground. Powered by SixBit's eCommerce Solution