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Circuit/System Testing

WARNING: This page is about a different car, the 2015 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the digital radio antenna coax cable from the T4G Cellular Phone, Navigation, and Digital Radio Antenna and the A11 Radio.
  2. Verify the digital radio 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. Replace the T4G Cellular Phone, Navigation, and Digital Radio Antenna.
  4. Ignition ON, A11 radio ON, tune to digital band.
  5. Verify DTC B125E is not set as current and digital reception is improved.
    • If DTC B125E is set as current or digital reception is not improved 

      Replace the A11 Radio.

    • If DTC B125E is not set as current and digital reception is improved 
  6. All OK.
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