Audio System Symptom Diagnosis
Before performing the following troubleshooting, check if the symptom is not caused by incorrect handling while referring to owner's manual. .
If the cause cannot be identified by the following troubleshooting, replace audio unit with a known-good one. If the symptom is cleared, audio unit is the cause.
AUDIO SYSTEM SYMPTOM CHART
| Condition | Possible Cause | Action |
|---|---|---|
| Audio unit cannot turn ON | Faulty audio connector | Check audio connectors for connection . |
| Faulty audio power supply and ground circuit (including fuse) | Refer to AUDIO SYSTEM CIRCUIT DIAGRAM and AUDIO SYSTEM INSPECTION . | |
| Poor radio reception | Faulty radio antenna connector | Check radio antenna connectors for connection . |
| Faulty radio antenna | Refer to PRINTED RADIO ANTENNA INSPECTION and XM ANTENNA INSPECTION (IF EQUIPPED) . | |
| Faulty radio antenna feeder cable | Refer to RADIO ANTENNA FEEDER CABLE INSPECTION . | |
| Faulty radio antenna power supply circuit | Refer to AUDIO SYSTEM CIRCUIT DIAGRAM and AUDIO SYSTEM INSPECTION . | |
| No sound from speaker | Faulty speaker connector | Check speaker connectors for connection . |
| Faulty speaker circuit | Refer to AUDIO SYSTEM CIRCUIT DIAGRAM and AUDIO SYSTEM INSPECTION . | |
| Faulty audio amplifier connector | Check audio amplifier connectors for connection . | |
| Faulty audio amplifier power supply and ground circuit (including fuse) | Refer to AUDIO SYSTEM CIRCUIT DIAGRAM and AUDIO SYSTEM INSPECTION . | |
| Light mode does not change when lighting switch is turned on | Faulty illumination power supply and ground circuit (including fuse) | Refer to AUDIO SYSTEM CIRCUIT DIAGRAM and AUDIO SYSTEM INSPECTION . |
| Audio system is operative, but audio control switch does not control audio system | Faulty audio control switch connector | Check steering switch connectors for connection . |
| Faulty audio control switch | Refer to STEERING SWITCH (AUDIO CONTROL SWITCH, DISPLAY AND TRIP SWITCH AND HANDS-FREE SWITCH) INSPECTION . | |
| Faulty remote audio control switch circuit | Refer to AUDIO SYSTEM CIRCUIT DIAGRAM . | |
| Impossible to call using hands-free system (if equipped) | Faulty microphone connector | Check microphone connectors for connection . |
| Faulty microphone | Refer to AUDIO SYSTEM INSPECTION . | |
| Faulty microphone circuit | Refer to AUDIO SYSTEM CIRCUIT DIAGRAM . | |
| Faulty hands-free switch connector | Check Steering switch connectors for connection . | |
| Faulty hands-free switch | Refer to STEERING SWITCH (AUDIO CONTROL SWITCH, DISPLAY AND TRIP SWITCH AND HANDS-FREE SWITCH) INSPECTION . | |
| Faulty hands-free switch circuit | Refer to AUDIO SYSTEM CIRCUIT DIAGRAM . | |
| Rearview image dose not come out even when select lever is shifted to "R" range (if equipped) | Rearview image signal from rearview camera inputted incorrectly | Check rearview camera circuit, see AUDIO SYSTEM CIRCUIT DIAGRAM . |
| "R" range signal inputted incorrectly | Check "R" range signal circuit. | |
| Rearview image is unclear (if equipped) | Abnormal operating environments such as temperature, radio waves, etc. | Recheck in different place. |
| Damaged lens | Replace rearview camera, see REARVIEW CAMERA REMOVAL AND INSTALLATION (IF EQUIPPED) . | |
| Faulty audio unit | Replace audio unit, see AUDIO UNIT REMOVAL AND INSTALLATION . | |
| Rearview image vibrates too much, or looks different from usual cases (if equipped) | Rearview camera installed improperly | Check installation status, see REARVIEW CAMERA REMOVAL AND INSTALLATION (IF EQUIPPED) . |
| Faulty audio unit | Replace audio unit, see AUDIO UNIT REMOVAL AND INSTALLATION . |