Reduced Volume - One or More Speakers

REDUCED VOLUME - ONE OR MORE SPEAKERS

Schematic Reference: Radio/Audio System Schematics

DIAGNOSTIC SYSTEM CHECK - VEHICLE
Always perform the Diagnostic System Check - Vehicle before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Vehicle in Vehicle DTC Information. Diagnostic System Check - Vehicle

SPEAKERS - REDUCED VOLUME

IMPORTANT: The following information lists the most probable cause of the concern to the least probable cause. If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with replacement.

Without RPO UQA
1. Speaker output circuit high resistance-Test the appropriate speaker output circuits for high resistance.
2. Defective speaker-Replace the appropriate speaker.

With RPO UQA (Bose)
1. Speaker output circuit high resistance-Test the appropriate speaker output circuits for high resistance.
2. Front low level audio circuit open-Test the appropriate low level audio circuit for an open.
3. Defective speaker-Replace the appropriate speaker.