bootloader download request timed out... this kinda sucks...
I keep trying to read entire and keep getting this ...
the truck is a 03 gmc 3500 8.1 and a Allison trans.
I have un hooked the battery and tried again
I have hooked up a battery charger on it with the voltage @14.7
any help is welcome I only have this truck till about 3:30
hpt help.PNG