Is there a software package for Jeeps that does more than read the standard OBDII data -- I'm looking for something like VCDS for Volkswagen/Audi that lets me and actually test components, gives data on any number of things, and allows changing programming (if you know what your doing).

are you looking for the vw software that comes on the 5051/5052 computers the dealers use?

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08 Maroon Liberty
Black headlight housing mod
Rigid Industries D2XL Pods
At The Helm shackles with red D-rings
And Roof Rack with Rough Country 40" light bar in front and 4 Dually pods on the rear
Custom Flip Switches and Custom panel
17 inch Black Rock rims
Rough Country 2.5 in budget lift
Bearcat 980 SSB CB
Kenwood double din cd dvd player