Antenna: Testing and Inspection
CENTER ROOF ANTENNA INSPECTIONMazdaspeed3
NOTE: The center roof antenna has a built-in antenna amplifier.
Antenna Amplifier Inspection
1. Turn the audio unit on and select the radio, then measure the voltage at center roof antenna connector terminal A.
- If the voltage is B+, go to the Feeder Line Inspection.
- If the voltage is not B+, inspect the audio unit or antenna feeder.
Feeder Line Inspection
1. Verify that there is no continuity between the center roof antenna terminals A and E using an ohmmeter.
2. Inspect for continuity between the center roof antenna terminals using an ohmmeter.
- If not as indicated in the table, replace the center roof antenna.