For Reference only! CRUZE 11 1.4L SIERRA 2500 PICKUP 11 Elec Cont Unit (ECU); (LH Fr under battery), 6.0L SIERRA 3500 PICKUP 11 Elec Cont Unit (ECU); (LH Fr under battery), 6.0L SIERRA DENALI 2500 11 Elec Cont Unit (ECU); 6.0L SIERRA DENALI 3500 11 Elec Cont Unit (ECU); 6.0L SILVERADO 2500 PICKUP 11 Elec Cont Unit (ECU); (LH Fr under battery), 6.0L SILVERADO 3500 PICKUP 11 Elec Cont Unit (ECU); (LH Fr under battery), 6.0L 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. Powered by SixBit's eCommerce Solution