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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 812 (Entertainment System) >> Diagnostic Information and Procedures >> Speakers Inoperative - One or More >> With RPO UM8

With RPO UM8

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  1. Battery positive voltage circuit to the amplifier open. Test the battery positive voltage circuit to the amplifier for an open.
  2. Ground circuit to the amplifier open. Test the ground circuit to the amplifier for an open.
  3. Speaker output from the radio shorted. Test each speaker output of the radio for a short to ground or short to voltage.
  4. No audio output from the amplifier. Replace the amplifier. Refer to AMPLIFIER REPLACEMENT  .
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