Operation CHARM: Car repair manuals for everyone.

Bose W/ Color W/ Navi W/Rear Control


U121A AV CONTROL UNIT





DTC Logic









Diagnosis Procedure
1.CHECK MUSIC BOX FUNCTION
Is music box function normal?
YES - Malfunction may be detected intermittently.
NO - Replace AV control unit. Bose W/ Color W/ Navi W/Rear Control.