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All Speakers Inoperative

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

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 AND POOR CONNECTIONS and CONNECTOR REPAIRS in Wiring Systems.

  1. Speaker output shorted - Test all speaker outputs for a short. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
  2. Defective radio - Replace the radio. Refer to RADIO REPLACEMENT (RPO CODE UM6, UM7)  or RADIO REPLACEMENT (RPO CODE UC6) .

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