Audio System Symptom Diagnosis (If Equipped): Radio
NOTE:
Electronic part/system with undiagnosed problem may cause electromagnetic interference. Electromagnetic interference condition may have poor radio reception. To test for presence of electromagnetic interference in part/system, perform the following procedures.
- Turn ignition switch to OFF.
- Systematically disconnect the electronic part/system connector(s) one at a time.
- Turn ignition switch to ON.
- Check any improvement in radio reception.
AUDIO SYSTEM SYMPTOM TROUBLESHOOTING REFERENCE CHART
| Condition | Possible Cause | Action |
|---|---|---|
| Poor radio reception | Out of service area (Poor location) | - |
| Antenna faulty | Replace antenna . | |
| Electrical part/system faulty | Repair or replace electrical part/system referring to above-mentioned NOTE . | |
| Wiring or grounding faulty | Repair circuit . | |
| Radio assembly faulty | Replace radio assembly . | |
| Radio does not operate and speaker does not sound | Circuit fuse(s) blown | Replace fuse(s) and check for short circuit . |
| Wiring or grounding faulty | Repair circuit . | |
| Radio assembly faulty | Replace radio assembly . | |
| Radio does not operate, but speaker sound | Wiring or grounding faulty | Repair circuit . |
| Radio assembly faulty | Replace radio assembly . | |
| Radio is operative, but all speakers does not sound | Wiring or grounding faulty | Repair circuit . |
| Radio assembly faulty | Replace radio assembly . | |
| Individual speaker is noisy or inoperative | Wiring or grounding faulty | Repair circuit . |
| Speaker faulty | Replace speaker . | |
| Radio assembly faulty | Replace radio assembly . | |
| Sound quality is poor | Out of service area (Poor location) | - |
| Speaker installed incorrectly | Install correctly . | |
| Wiring or grounding faulty | Repair circuit . | |
| Speaker faulty | Replace speaker . | |
| Radio assembly faulty | Replace radio assembly . |