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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1632 (Entertainment System) >> Diagnostic Information and Procedures >> Speakers Inoperative-One or More >> One Speaker Inoperative >> Without RPO UQ7

Without RPO UQ7

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Speaker output open. Test the appropriate speaker output circuits for an open. Refer to CIRCUIT TESTING  and WIRING REPAIRS .
    IMPORTANT: The radio must be programmed after replacement. Refer to SERVICE PROGRAMMING SYSTEM (SPS) .
  2. No audio output from the radio. Test for any AC voltage between the appropriate speaker output circuits at the speaker harness connector, disconnected with the radio volume adjusted to 50 percent. If AC voltage is present, replace the speaker. Refer to Speaker Replacement Reference   .  If no AC voltage is present, replace the radio. Refer to Radio Replacement (Non-Digital Radio)   or Radio Replacement (Digital Radio)   . 
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