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Home >> Buick >> 2017 >> Verano Base, Gas/Ethanol >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B1025, B1035, B1045, or B1055: Audio Output Circuit >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, A11 Radio ON, mute OFF.
  2. Verify clear audio is heard from each speaker, adjusting fade and balance controls to test each speaker individually.
    • If audio is inoperative from one or more speakers, or the audio emitted is not clear. 

      Refer to Circuit/System Testing.

    • If clear audio is heard from all speakers. 
  3. All OK.