FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

U121A




U121A AV CONTROL UNIT

DTC Logic








Diagnosis Procedure


1. CHECK MUSIC BOX FUNCTION

Is music box function normal?
YES- Malfunction may be detected transitory.
NO- Replace AV control unit. With Navigation.