U121F

U121F AV CONTROL UNIT





Description
Replace the AV control unit if this DTC is displayed. Refer to Bose Audio With Navigation.









DTC Logic









Diagnosis Procedure
1.CHECK AV CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
Check AV control unit power supply and ground circuit. Refer to Component Tests and General Diagnostics.
Is the inspection result normal?
YES - Replace AV control unit.
NO - Repair or replace malfunctioning parts.