TESTED 04-05 F-350 E-350 EXCURSION 6.0L ECU ECM ENGINE COMPUTER 4U7A-12A650-ESH GM ABS VIDEO Some of those tests are

Some of those tests are listed below: All stepper motors tested with diagnostic tool capable of moving the needles as if in the vehicle and if necessary replaced with the newer x27 motors

AL3A-12A650-CKA

5U7A-12A650-CLF

7L3A-12A650-FUF

Not all ECMs with the alternator charging system issue can be repaired

TESTED 04-05 F-350 E-350 EXCURSION 6.0L ECU ECM ENGINE COMPUTER 4U7A-12A650-ESH GM ABS VIDEO Some of those tests arePart Number 4U7A 12A650 ESH DPU 252A You must have both sets of numbers on your original ecu. ECU will arrive with updated part number sticker having been programmed with latest Ford Software Updates! (PATS programming will still be required after install) Fitment Interchange This ecu will interchange or replace the following ecu part numbers for 2004 Ford F 250 F 350 F 450 F 550 Super Duty trucks, 2004 E Series models and 2004 and 2005 Excursion 6.