Description

Audio unit internal malfunction

Detection condition

Audio unit internal ECU (Tuner peripheral circuit) is faulted.

Fail-safe function

Not applicable

Possible cause

Audio unit malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

• Clear the DTC from the audio unit memory.

  (See CLEARING DTC [AUDIO].)

• Perform the audio unit DTC inspection.

  (See DTC INSPECTION [AUDIO].)

• Is the same DTC displayed?

Yes

Replace the audio unit, then go to the next step.

(See AUDIO UNIT REMOVAL/INSTALLATION.)

No

Go to the next step.

2

• Are any other DTCs displayed?

Yes

Repair the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [AUDIO].)

No

DTC troubleshooting completed.