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Home >> Cadillac >> 2017 >> ATS Base, 4D Sedan, RWD, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC B125E: Digital Audio Broadcast (DAB) (except IO6 with CW1) >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2016 Cadillac CT6. 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 T23R Radio Antenna Amplifier-Right 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 T23R Radio Antenna Amplifier-Right.
  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 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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