DTC
Display contents of CONSULT‐III
DTC Detection Condition
Action to take
U1220
XM SERIAL COMM
[U1220]
Internal malfunction of AV control unit (satellite radio tuner communication error) is detected.
An intermittent error caused by strong radio interference may be detected unless any symptoms (satellite radio reception error, etc.) occur. Replace the AV control unit if the malfunction constantly occurs.