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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B1025-B1135: Audio Output Circuits (UQF) >> 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 but not all. 

      Refer to Circuit/System Testing One Speaker.

    • If audio is Inoperative from all speakers  .

      Refer to Circuit/System Testing All Speakers.

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