Used,Match Part Number,Expedited Shipping! For Reference Only! MATRIX 03-04 Elec Cont Unit (ECU); (RH dash), 4WD, ID# 89661-0Z100 MATRIX 03-04 Elec Cont Unit (ECU); (RH dash), 4WD, ID# 89661-0Z101 MATRIX 04 Elec Cont Unit (ECU); (RH dash), 4WD, ID# 89661-0Z102 VIBE 04 Elec Cont Unit (ECU); (ctr dash), AT, opt MU5, from VIN 4Z431841 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. 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 other U.S.Territories will be shipped with USPS Priority mail. Powered by SixBit's eCommerce Solution