The 06 has an ignition control module mounted on top of the,cvalve cover/ coil pack that can fail wit the realease of a very faint flash of blue light and fairy dust. They can also run for well over 300k miles. Check the fuses on the BCM, inside, pass side console and there is one fuse in the engine compartment fuse block.
Coby7 had a very good color schematic posted here before it was blocked. There is also a reasonable schematic over at Autozone.