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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1367 (Entertainment System) >> Diagnostic Information and Procedures >> Speakers Inoperative-One or More >> All Speakers Inoperative >> With RPO UQ7

With 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. Battery positive voltage circuit to the amplifier open. Test the battery positive voltage circuit to the amplifier for an open. Refer to CIRCUIT TESTING  and WIRING REPAIRS .
  2. Ground circuit to the amplifier open. Test the ground circuit to the amplifier for an open. Refer to CIRCUIT TESTING  and WIRING REPAIRS .
    IMPORTANT: With RPO Y91, Bose amplifier, perform the setup procedure for the amplifier. Refer to Audio Amplifier Setup   . 
  3. No audio output from the amplifier. Replace the amplifier. Refer to Amplifier Replacement   . 
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