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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 341 (Entertainment System) >> Diagnostic Information and Procedures >> Speakers Inoperative - One or More >> With RPO UQ3

With RPO UQ3

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. 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 in Wiring Systems.
  2. 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. Refer to RADIO REPLACEMENT  .
  3. No audio output from the amplifier - Replace the amplifier. Refer to AMPLIFIER REPLACEMENT  .
    IMPORTANT: The following procedure assumes all speakers are operative for all modes of operation except digital radio.


  1. Speaker output circuit from amplifier open or shorted - Test the appropriate speaker output circuits for an open or short. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
  2. Low level audio circuit open - Test the appropriate low level audio circuit for an open. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
  3. No low level audio output from the radio - Test for any AC voltage between the appropriate 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. Refer to RADIO REPLACEMENT  .
  4. No audio output from the amplifier - 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 amplifier. Refer to AMPLIFIER REPLACEMENT  .


  1. Speaker output circuit high resistance - Test the appropriate speaker output circuits for high resistance. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
  2. Low level audio circuit open - Test the appropriate low level audio circuit for an open. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
  3. Defective speaker - Replace the appropriate speaker. Refer to SPEAKER REPLACEMENT REFERENCE  .
IMPORTANT: The following procedure assumes all speakers are operative for all modes of operation except digital radio.
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