Circuit/System Testing
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the radio antenna coax from the A11 radio and from the radio antenna amplifier.
- Test for infinite resistance between the antenna coax center terminal and ground.
- If less than the specified value, replace the antenna coax.
- Test for less than 5 Ω on the antenna coax center circuit from end to end.
- If greater than the specified range, replace the antenna coax.
- Ignition ON, test for less than 1 V between the antenna coax center terminal and ground.
- If greater than the specified range, replace the antenna coax.
- Test for infinite resistance between the coax center terminal and the outer shield.
- If less than the specified value, replace the antenna coax.
- Connect the antenna coax to the A11 radio. Test for 12-15 V between the antenna coax center terminal and ground at the radio antenna amplifier connector.
- If not within the specified range, replace the A11 radio.
- If all circuits test normal, replace the radio antenna amplifier.