| 1 |
Display control unit malfunction is detected. |
Replace display control unit. |
| 2 |
Malfunction is detected on communication signal between display control unit and display. |
- Check communication circuit between display control unit and display.
- Check communication signal between display control unit and display.
- If the results from the above checkup show no malfunction, replace either display control unit or display, and then start self-diagnosis.
- If self-diagnosis results still show any malfunction, replace the other unit.
|
| 3 |
- Audio unit power supply circuit malfunction is detected.
- Malfunction is detected on communication signal between display control unit and audio unit.
|
- Check audio unit power supply circuit.
- Check communication circuit between display control unit and audio unit.
- Check communication signal between display control unit and audio unit.
- If the results from the above checkup show no malfunction, replace either display control unit or audio unit, and then start self-diagnosis.
- If self-diagnosis results still show any malfunction, replace the other unit.
|
| 4 |
- Satellite radio tuner power supply and ground circuit malfunction is detected.
- Malfunction is detected on communication signal between audio unit and satellite radio tuner.
|
- Check satellite radio tuner power supply and ground circuit.
- Check communication circuit between audio unit and satellite radio tuner.
- Check communication signal between audio unit and satellite radio tuner.
- If the results from the above checkup show no malfunction, replace either audio unit or satellite radio tuner, and then start self-diagnosis.
- If self-diagnosis results still show any malfunction, replace the other unit.
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