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.
- Ignition OFF, disconnect the FM2 radio antenna coax cable from the A11 Radio and from the T35FB Radio Antenna Amplifier - FM2.
- 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
- If the coax cable does not pass the test
- Connect the radio antenna coax cable to the A11 Radio.
- Connect the appropriate pinout adaptor from EL-52552 COAX FAKRA Cable Adaptor Kit to the coax cable at the T35FB Radio Antenna Amplifier - FM2.
- Ignition ON, A11 Radio ON/vehicle in service mode, A11 Radio on.
- Verify a test lamp illuminates between the terminals at the pinout adaptor.
- Test for 9 V or greater between the terminals at the pinout adaptor.
- If less than 9 V
Replace the A11 Radio.
- Go to next step: If 9 V or greater
- If less than 9 V
- Test or replace the T35FB Radio Antenna Amplifier - FM2.