Reduced Volume - One or More Speakers

REDUCED VOLUME - ONE OR MORE SPEAKERS

DIAGNOSTIC SYSTEM CHECK - RADIO/AUDIO SYSTEM
Always perform the Radio/Audio System Diagnostic System Check before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Radio/Audio System. Diagnostic System Check

SPEAKER(S) - 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 U87
1. Speaker output circuit high resistance. Test the appropriate speaker output circuits for high resistance.
2. Defective speaker - Replace the appropriate speaker.

WITH RPO U87
1. Speaker output circuit high resistance. Test the appropriate speaker output circuits for high resistance.
2. Low level audio circuit open. Test the appropriate low level audio circuit for an open.
3. Defective speaker - Replace the appropriate speaker.