Speakers Inoperative - Subwoofer

SPEAKERS INOPERATIVE - SUBWOOFER

DIAGNOSTIC SYSTEM CHECK - VEHICLE
Always perform the Diagnostic System Check - Vehicle before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Vehicle. Initial Inspection and Diagnostic Overview

IMPORTANT: If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with the replacement.

1. Defective subwoofer-Replace the subwoofer.
2. No audio output from amplifier-Test for any AC voltage between the 2 pairs of audio signal circuits at the subwoofer speaker connector with the radio volume adjusted to 50 percent. If no AC voltage is present, check for shorts to battery positive or shorts to ground on the affected speaker output circuits from the amplifier. If no shorts are located, replace the amplifier.