I got a 07 5.9 automatic was running a driving fine let it set for about month then went out an had nothing by that I mean the only thing I can find out the truck that works is the power seat an break light does nothing when turn the key won’t crank nothing work is put a new ignition switch in still nothing test an has no power at the switch pull grounds off an cleaned them didn’t help put a new tipm box in still nothing can’t hook a scanner up because it don’t have power so I’m lost on what to try also the gauges read like it’s running with the key out even if you take the battery out the gauge still read I’m starting to lean to ecm but trying not to just throw money at parts new to the electric part

The is is how the gauges read with the key out