Collection: Electronic Control Module / ECU / ECM Control Units

Used OEM ECUs and ECMs at CarPartSource are genuine OEM, not aftermarket or rebuilt, and are tested before listing and matched to your exact year, make, model, and engine code, since these control units are often paired to a specific vehicle or immobilizer system. Most units need to be programmed by a qualified technician. A unit that has not been programmed correctly will show a VIN mismatch code, which clears once programming is done properly, and programming or installation issues are not covered under warranty.