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Home >> Buick >> 2013 >> Verano Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 194 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Radio Controls Malfunction (with Monochrome Display) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2012 Buick Verano. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify no DTCs are present.
    • If no DTCs are present. 
  2. Ignition ON, A11 radio ON.
  3. Verify that all radio controls operate and perform the correct function.
    • If some, but not all, controls operate normally. 

      Replace the A22 radio controls.

    • If all controls are inoperative. 

      Refer to Circuit/System Testing below

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