LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2017 >> Envision Base >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> Radio Poor Reception >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

  1. Ignition OFF, disconnect the radio antenna coax cable from the A11 Radio and from the K46 Radio Antenna Module.
  2. Verify the antenna coax cable passes the coax cable component test. Refer to Component Testing.
    • If the coax cable does not pass the test 

      Replace the antenna coax cable

    • If the coax cable passes the test 
  3. Connect the antenna coax cable to the A11 Radio. Ignition ON, A11 Radio ON.
  4. Verify a test lamp illuminates between the antenna coax cable center terminal and ground at the K46 Radio Antenna Module connector.
    • If the test lamp does not illuminate 

      Replace the A11 Radio.

    • If the test lamp illuminates 
  5. Test or replace the K46 Radio Antenna Module.