I am about to buy a 2012 ford f150 , I test drove it and 2 codes came up when I scanned it
P187C :00-48 differential lockup control circuit open
U3000: 04-28 control module

I Google but nothing came up . Please help

 

Nothing came up on google? You gotta say believable problems.

You are having a problem with your transfer case for 4x4. The module may be bad, or just the wiring to it. Perhaps the wiring is just unplugged. It is located by the fuse box in the passenger footwell.

 

Circuit fault involving the ELD solenoid, its wiring, or the TCCM. You'd have to follow the diagnostic procedure to pinpoint.

From which module was that DTC read?