Audio Unit Self-Diagnostic Mode

AUDIO UNIT SELF-DIAGNOSTIC MODE

NOTE: To enter the speaker walk-around test or 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 ignition switch or the audio unit off.
3. If the concern remains and the fault is not detected, GO to Symptom Chart. Symptom Related Diagnostic Procedures
4. The self-diagnostic mode has 6 manual tests available:
- Preset button 1 = ENTER DIAGNOSTICS. This test enters the audio self-test from the speaker walk-around test. Press the tune > button after the audio self-test to display the diagnostic trouble codes.
- Preset button 2 = View continuous DTCs. Press the tune > button to scroll through the DTCs.
- Preset button 3 = SIGNAL STRENGTH.
- Preset button 4 = Software configuration level. This test queries each radio system controller for its software configuration level. Press the tune > button to scroll through the software levels.
- Preset button 5 = DISPLAY TEST. This test lights all the display segments for 5 seconds and then turns all segments off.
- Preset button 6 = MODULE CONFIGURATION. Press the tune > button to scroll through the configuration list.

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