American Expedition Vehicles JK HEMI Builder Kit - Installation Guide for 12+ JK Wrangler - Manual (Page 36)

34
axle ratio programming
Using the ProCal Module to program axle ratio once your new HEMI engine is installed requires a special
mode. Programming axle ratio is required after completeing your HEMI conversion even if you did not
change your axle gear ratio. There is no performance increase by adjusting this value to anything besides
what the vehicle has physically installed. Failure to program the axle gear ratio or programming the incor-
rect ratio will cause some vehicles to go into “Limp-In” mode.
1. Set the first 3 DIP switches as shown.
2. Set switches 4 and 5 as shown.
5.7 L 6.4 L
3. Set the remaining switches based on the chart. Once all the dip switches are set, please refer to the
User Guide that came with your ProCal Module for the proper programming procedure.
tire size programming
You may now use the ProCal Module to program your tire size. Please use the Quick Reference Guide and
User Guide that came with your ProCal Module for the proper programming procedure.