I ran the self test on the radio and recovered a code but it was not in my manual.It is u2008 can someone help?

 

I don't see that code fro your radio, going by the vehicle in your profile. Below are the codes

DTC Description Source Action
B1342 ECU Is Defective ACM CLEAR and DOCUMENT the DTCs. PERFORM the Self-Test. REMOVE the audio unit and SEND it to an authorized Ford audio system repair facility if DTC B1342 is retrieved again. TEST the system for normal operation after the repair.
B2401 Audio Tape Deck Mechanism Fault ACM VERIFY that no cassette is inserted in the ACM. CLEAR and DOCUMENT the DTCs. PERFORM the Self-Test. If DTC B2401 is retrieved again, REMOVE the audio unit and SEND it to an authorized Ford audio system repair facility. TEST the system for normal operation after the repair.
B2402 Audio CD/DJ Thermal Shutdown Fault ACM GO to Pinpoint Test B.
B2403 Audio CD/DJ Internal Fault ACM GO to Pinpoint Test B.
B2404 Audio Steering Wheel Switch Circuit Fault ACM GO to Pinpoint Test M.
B2405 Audio Single-Disc CD Player Thermal Shutdown Fault ACM Not applicable. The vehicle is not equipped with a single-disc CD player. CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test.
B2406 Audio Single-Disc CD Player Internal Fault ACM Not applicable. The vehicle is not equipped with a single-disc CD player. CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test.
U2003 Audio Compact Disc/Disc Jockey Is Not Responding ACM If equipped with CD/DJ, GO to Pinpoint Test B.
U2005 Audio Rear Integrated Control Panel (RICP) Unit Is Not Responding ACM NOTE: U2005 is retrieved if RICP is not present, disconnected or inoperative.

VERIFY if the vehicle is equipped with RICP.
U2014 Audio Subwoofer Unit Is Not Responding ACM GO to Pinpoint Test K.

 

I ran the self test again and iI got the same code U2008 phono or phone I dont remember