Antenna, Radio: Testing and Inspection

Inspection

Glass Antenna Test
1. Wrap aluminum foil (A) around the tip of the tester probe (B) as shown.




2. Touch one tester probe to the glass antenna terminal (A) hear, and move the other tester probe along the antenna wires to check that continuity exists.





Glass Antenna Circuit Inspection
1. Remove the rear pillar trim and package tray.
Then disconnect the antenna feeder cable and connector from the glass antenna amplifier.
2. Turn the radio ON.
3. Measure the voltage between the antenna feeder cable (A) and body ground (B).

OK :approximately 12V (ACC+)





4. Disconnect the connector of radio wiring from the glass antenna amplifier.
5. Check the continuity between terminals of harness side connector (B) and antenna grid AM/FM terminals (A).




6. Check the grid lines that continuity exists.
7. When a poor radio reception is not repairing through the above inspection methods, replace the amplifier.
If the radio reception is still poor, check the radio cable for short and radio head unit for failure.