Slight frustration continues. Now SES came on this morning, P0638 and P2621

Guess I need a new Throttle Body?!? (P2621 Throttle position , output signal - circuit low - Page 2 - Bimmerfest - BMW Forums)

Vehicle drove great the first week, let it sit for a week while on vacation. Now, no comfort access, bluetooth, radio, PDC and now these two codes popped up...While I haven't had to dump any money into it (yet), still frustrating to see after one week of ownership being bought from the dealership.

__________________
2004 BMW M3 Individual
2009 BMW E70 X5 35d
2011 BMW E70 X5 35d - Totaled
2009 BMW M3 E90 - SOLD
2006 E53 X5 4.8iS - SOLD
2002 E46 M3 Convertible - SOLD
2006 E46 M3 ZCP - SOLD
2011 E70 X5 35d - SOLD
2000 E39 ///M5 - SOLD
2003 E53 X5 4.6iS - SOLD
2006 E83 X3 3.0i MSport - SOLD
2000 E46 323Ci - SOLD