Howdy Tim and welcome to the forum,
What year is your salvage car and where are you located? Are you going to try to fix it to drive or part it out?
The "U" codes usually result from some sort of CAN buss communications errors--some box or sensor is not responding properly.
These are CAN buss time-out errors (no response during an expected time or message), i can't determine the specific box to which they refer.
The P codes are more system specific. For the gear shift there are 2 shift position sensors aka switches,
If all the shift position switch (shift position) and shift position switch (inhibitor) for the P-position to B-position [P,R,N,D,E,B us or P,R,N,D,B,C euro] are kept to OFF for 3 seconds or longer, the diagnosis code No. P0705 will be set.
Damaged wiring harness or connector(s)
Improper installation of the shift control cable
Improper installation adjustment of the shift position switch
Malfunction of the shift position switch
Malfunction of the EV-ECU
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