Antenna: Testing and Inspection
1. Check the following electrical connections:- Antenna lead connection at the radio
Windshield Antenna:
- Windshield antenna lead connector in the front dash panel.
Antenna Amplifier Module:
- Three antenna amplifier connectors.
2. Using an Ohmmeter check for continuity at the antenna amplifier:
- Amplifier antenna lead connector to the radio antenna lead connector
- Amplifier white antenna lead connector to the connector in the front dash panel
- Amplifier bracket to a ground on the frame
3. Using an voltmeter, turn ignition switch to ON position, check for battery voltage at the amplifier bullet connector.
4. Move the vehicle outside and at least 10 meters (35 feet) from the nearest building. Turn ignition switch to the accessory position, turn radio ON, with DX function ON and a very weak AM station ON. Very weak is defined as a station the radio will not seek to. You should hear background noise, but still be able to understand the program material.
a. Disconnect antenna lead connector in the front dash panel. There should be a great drop in reception quality If OK tile antenna and amplifier are OK. If not OK, verify by connecting a 1.5 meters (5 ft.) piece of wire to the terminal and holding it vertical. Check for drop in radio reception quality. If OK replace windshield. If not OK, go to Step b.
b. Connect antenna lead connector in the front dash panel. Disconnect bullet connector at amplifier. There should be a great drop in reception quality. If not OK, replace antenna amplifier.