05 06 07 FORD F-150 F-250 5.4L ECU PCM ENGINE COMPUTER 5C3A-12A650-LSA REBUILT Featured Products 2005 Mercury Grand Marquis with

2005 Mercury Grand Marquis with the same part number

you need to make sure the vehicle's coils have been replaced with Motorcraft DG514 and the spark plugs have been replaced with Motorcraft SP433 before the ECM is installed

5W7Z-13C788-AA - You must match this number exactly

testing the module and the attempted repair which in most cases can take quite a bit of time and effort

LED's tested and are all good

05 06 07 FORD F-150 F-250 5.4L ECU PCM ENGINE COMPUTER 5C3A-12A650-LSA REBUILT Featured Products 2005 Mercury Grand Marquis withPart Number 5C3A 12A650 LSA AND VK2 C3581 YOU MUST HAVE BOTH OF THESE ON YOUR PART # STICKER! ECU will arrive with updated part number sticker having been programmed with latest Ford Software Updates! Fitment Interchange This ecu will interchange or replace the following ecu part numbers on 2005 to 2007 F 150 F 250 F 350 5. 4L Trucks: 5C3A 12A650 LSA 5C3A 12A650 LSB 6C3A 12A650 DXA 6C3A 12A650 DXB 6C3A 12A650 DYA 6C3A 12A650 DYB Tech Notes ECU has