This Engine Control Module (ECM) is a genuine replacement for all 2012 Cadillac CTS-V models with the 6.2L LSA engine and 6L90E transmission. The GM part number for this ECU is 12635861 and the hardware code is 12633264. Enthusiasts commonly refer to this module as a E67 Engine Control Module (ECM).
Once we receive your order, we will pull a used, but inspected and tested, ECU from our inventory and program it with the latest GM calibration for a 2012 Cadillac CTS-V with the 6.2L LSA engine and 6L90E transmission. IMPORTANT! If this ECU will be installed in a 2012 Cadillac CTS-V, you must provide us with your Vehicle Identification Number (VIN) for compatibility. You may provide a VIN during checkout as a note on the order or by email immediately following your purchase.