Audio Unit Self-Diagnostic Mode

AUDIO UNIT SELF-DIAGNOSTIC MODE

NOTE: To enter the audio unit self-diagnostic mode, the audio unit must be turned on and in radio tuner mode (AM/FM).

1. To enter the following tests, press the desired preset button while in the speaker walk-around test or while in the audio unit self-diagnostic mode.
2. To exit the audio unit self-diagnostic mode, turn the key to OFF or turn the audio unit off.
3. If the concern remains and the fault is not detected, GO to Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures
4. The self-diagnostic mode has the following functions available:
- Preset button 1 = On-Demand Self-Test. This button runs the on-demand self-test.
- Pressing the MENU DOWN button allows scrolling of any DTCs found during the test while in this menu.

- Preset button 2 = Display Continuous DTCs. This button enables viewing of any continuous DTCs that have been logged.
- Pressing the MENU UP button allows scrolling of any DTCs while in this menu.
- While continuous DTCs are being displayed, pressing the EJECT button will clear all present DTCs. The key must be cycled OFF, then ON, to permanently clear DTCs. For steering wheel control switch DTCs, any steering wheel control switch must be pressed prior to pressing EJECT.

- Preset button 3 = Signal Strength Test. This button displays the signal strength.
- Preset button 4 = Software Version Display. This button displays the audio unit software version.
- Pressing the MENU UP button allows scrolling of all audio subsystem software versions while in this menu.

- Preset button 5 = Display Test. This test illuminates all the display segments for 5 seconds, then either turns all segments off or indicates DISPLAY TEST on the screen.
- Preset button 6 = Configuration Status. This button enables audio unit configuration status.
- Pressing the MENU button displays the ACM part number while in this menu.

5. To exit the self-diagnostic mode, turn the audio unit off or turn the key to OFF.
6. If the concern remains and the fault is not detected, GO to Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures