Perform the Diagnostic System Check - Vehicle before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Vehicle .

Schematic Reference: Video System Schematics

Important: The following information lists the most probable cause of the concern to the least probable cause, followed by the appropriate test for the 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 .

1. Headphone audio adjusted all the way down--Adjust the affected headphone audio to an audible level.
2. Headphone battery drained--Install new batteries in the affected wireless headphone.
3. No audio output from the radio--Test for any AC voltage between the left or right audio signal circuits and the audio return signal circuit at the overhead console connector. If no AC voltage is present, check for opens, shorts to battery positive, or shorts to ground on audio output circuits from the radio. Refer to Circuit Testing and Wiring Repairs . If there is no AC voltage, and no opens or shorts are found, replace radio. Refer to Radio Replacement .
4. Overhead console faulty--Replace overhead console. Refer to VES Overhead Console Replacement .