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Circuit/System Testing

WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the AM/FM antenna coax cable from the A11 Radio and from the T35AF Radio Antenna Amplifier - AM/FM.
  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

    • Go to next step: If the coax cable passes the test 
  3. Connect the radio antenna coax cable to the A11 Radio.
  4. Connect the appropriate pinout adaptor from EL-52552 COAX FAKRA Cable Adaptor Kit to the coax cable at the T35AF Radio Antenna Amplifier - AM/FM.
  5. Ignition ON, A11 Radio ON.
  6. Verify a test lamp illuminates between the terminals at the pinout adaptor.
    • If the test lamp does not illuminate 

      Replace the A11 Radio.

    • Go to next step: If the test lamp illuminates 
  7. Test or replace the T35AF Radio Antenna Amplifier - AM/FM.
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