Diagnosis And Testing
WARNING: This page is about a different car, the 2007 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
ANTENNA MODULE DIAGNOSIS
| CONDITION | POSSIBLE CAUSES | CORRECTION |
|---|---|---|
| NO AM RECEPTION, WEAK FM RECEPTION | 1. Antenna module to antenna connector open or disconnected. | 1. Repair open, reconnect antenna module connector to glass mounted antenna. |
| 2. Coax open or disconnected. | 2. Repair open, reconnect coax. | |
| 3. No battery power at antenna module. | 3. Check fuse. if okay, repair open in battery voltage circuit. | |
| NO AM OR FM RECEPTION | 1. Coax disconnected at radio. | 1. Reconnect coax. |
| 2. Coax shorted to ground. | 2. Repair or Replace coax | |
| WEAK OR NO AM/FM RECEPTION | 1. Antenna Module inoperative. | 1. Substitute a known good module to see If reception improves. Replace antenna module as necessary. |