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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> Radio Controls Malfunction (IOB) >> Circuit/System Verification

Circuit/System Verification

  1. Verify DTC B123E is not set.
    • If DTC B123E is not set 
  2. Ignition ON/vehicle in Service Mode, A11 Radio ON.
  3. Verify that all radio controls operate and perform the correct function.
    • If all or some of the radio controls are inoperative 

      Refer to Circuit/System Testing.

    • If all radio controls operate and perform the correct function. 
  4. All OK.
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