Speakers Inoperative - All

Speakers Inoperative - All

Diagnostic System Check - Vehicle

Always perform the Radio/Audio System Diagnostic System Check before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Vehicle. Initial Inspection and Diagnostic Overview

Important: The following information lists the most probable cause of the concern to the least probable cause, followed by the appropriate test for that condition. If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with the replacement. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Diagnostic Aids. Component Tests and General Diagnostics

Without RPO U2K or U42/U56

No audio output from the radio.

Test for any AC voltage between the left front audio signal circuits at the left front 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 any speaker output circuit from the radio. Refer to Circuit Testing and Wiring Repairs in Diagnostic Aids. If no shorts are located, replace the radio. refer to Programming and Relearning. Component Tests and General Diagnostics

With RPO U2K or U42/U56

No audio output from the DVD player or Digital Radio Receiver (DRR).

Test for any AC voltage between the left or right audio signal circuits and audio common circuit at the radio connector. If no AC voltage is present, check for opens, shorts to battery positive or shorts to ground on left and right output circuit from the affected component. Refer to Circuit Testing and Wiring Repairs in Diagnostic Aids. If no shorts or opens are located, replace the affected component. refer to Programming and Relearning. Component Tests and General Diagnostics