Circuit/System Testing
WARNING: This page is about a different car, the 2012 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle OFF, disconnect the radio antenna coax cable from the A11 radio and from the T4G antenna.
- 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
- If the coax cable does not pass the test
- Connect the antenna coax cable to the A11 radio. Vehicle in Service Mode, A11 radio ON.
- Verify a test lamp illuminates between the antenna coax cable center terminal and ground at the T4G antenna.
- If the test lamp does not illuminate
Replace the A11 radio.
- If the test lamp illuminates
- If the test lamp does not illuminate
- Test or replace the T4G antenna.