Join Date: Jul 2009
Location: Anaheim Hills, CA
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Check for thrown codes and go from there.
Turn the key from off to on (one click before start). Turn the key back one click (accessory) and back to on and back to accessory and back to on. The odometer should go to all dashes if you do this correctly. After that, any trouble codes will be displayed followed by the word "done" when everything has been displayed.
There may or may not be thrown codes, but if there are, it'll give you an idea what might be wrong or where to start.
Best of luck
2007 JKU (ex)Rubicon w/bolt-ons: LS3 / 6L80E • Synergy Long Arm 4.5" Lift • 40"s • Dana 60s • PSC Hydro • etc.