With Mobile Entertainment System

U121F AV CONTROL UNIT





Description
Replace the AV control unit if this DTC is displayed. With Mobile Entertainment System.









DTC Logic









Diagnosis Procedure
1.CHECK AV CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
Check AV control unit power supply and ground circuit. With Mobile Entertainment System.
Is the inspection result normal?
YES - INSPECTION END
NO - Repair or replace malfunctioning parts.