After 35 yrs of Fords, I just bought a new to me 05 3500 DRW, and l have driven it 600 miles. It sat 2 days in freezing temps, and when I went to start today, batteries dead. I charge the bats, and when started, the MIL light comes on and pops the 2146/49 codes. It idles and revs fine, but I havn't driven it yet. It came with a Juice/Attitude, and searching the forum shows this may be part of the prob. Should I drive it some and see if it clears up, or disconnect the Juice? Did the dead batteries cause something to need re-setting? Any help much appreciated..