Antenna: 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 (B) after removing the bolt in the cap (A).




2. Disconnect the antenna feeder cable (B) from the glass antenna amp (A).








3. Turn the radio ON. Measure the voltage between terminal of the antenna feeder cable (B) and body ground (A).




4. Check for continuity between terminals of harness side connector and antenna grid terminals (AM, FM).
5. Check the grid lines that continuity exists.
6. When a poor radio reception is not repaired through the above inspection methods, replace the amp.
If the radio reception is still poor, check the radio cable for short and radio head unit for failure.