Speakers Inoperative - All

SPEAKERS INOPERATIVE - ALL

SCHEMATIC REFERENCE: Radio/Audio System Schematics
CONNECTOR END VIEW REFERENCE: Entertainment Connector End Views

DIAGNOSTIC SYSTEM CHECK - VEHICLE

Always perform the Diagnostic System Check - Vehicle before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Vehicle in Vehicle DTC Information. Diagnostic System Check - Vehicle

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.

With RPO UQ2
1. Speaker output shorted-Test all speaker outputs for a short.
2. Defective radio-Replace radio.

With RPO U85
1. Battery positive voltage circuit to the amplifier open-Test the battery positive voltage circuit to the amplifier for an open.
2. Amplifier control circuit to the amplifier open or shorted to ground-Test amplifier control circuit for an open or short to ground.
3. No low level audio output from the radio-Test for any AC voltage between the left front low level audio signal circuits at the amplifier harness connector, disconnected with the radio volume adjusted to 50 percent. If no AC voltage is present, replace the radio.
4. No audio output from the amplifier-Replace the amplifier.

IMPORTANT: The following procedure assumes all speakers are operative for all modes of operation except digital radio.

With RPO U2K or U2L
1. Remote radio audio signal circuit shorted-Test the remote radio audio signal circuits for a short.
2. No audio output from the digital radio receiver-Replace the digital radio receiver.
3. No digital radio audio output from the radio-Replace the radio.