Antenna, Radio: Testing and Inspection

CENTER ROOF ANTENNA INSPECTION

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

AM/FM type

1. Verify that there is no continuity between the center roof antenna terminals A and C 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.






AM/FM/SIRIUS type

1. Verify that there is no continuity between the center roof antenna terminals A and C 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.