Speakers Inoperative - One or More

SPEAKERS INOPERATIVE - ONE OR MORE

DIAGNOSTIC SYSTEM CHECK - VEHICLE
Always perform the Radio/Audio System Diagnostic System Check - Vehicle before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Vehicle. Testing and Inspection

Without RPO U56/U42 or U2K
1. No audio output from the radio. Test for any AC voltage between the audio signal circuits at the affected speaker connector with the radio volume adjusted to 50 percent. If no AC voltage is present, check for shorts to battery positive voltage or shorts to ground on all affected speaker output circuits from the radio. If no shorts are located, replace the radio.
2. Speaker output open. Test the appropriate speaker outputs for an open.
3. Defective speaker. Replace the appropriate speaker.

With RPO U56/U42 or U2K
1. Remote Playback Device Audio Circuit open, shorted to ground or shorted to battery positive. Test the appropriate remote playback device audio circuit for an open, short to ground or short to battery positive,
2. Defective speaker. Replace the appropriate speaker.
3. No audio output from the radio. Test for any AC voltage between the audio signal circuits at the affected speaker connector with the radio volume adjusted to 50 percent. If no AC voltage is present, check for shorts to battery positive voltage or shorts to ground on all affected speaker output circuits from the radio. If no shorts are located, replace the radio.