Charged the batteries, and now the only code I get is U1601: ECU application software code 1 missing or corrupted. Still get the same error when I try to go to the ECM section on the tuner. Also I would have to have tunes redone if I update the firmware any further.
Awesome support from MM3.
2017 3500 68AUTO LB. DEMONICO RED
Nitto 295/70/18 DRD pew pew bang! spark plug pack
Southern Oregon ( the Republican part)
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