Audio Unit Self-Diagnostic Mode - CD6

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

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

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.
To exit the audio unit self-diagnostic mode, turn the ignition switch or the audio unit off.
If the concern remains and the fault is not detected, proceed to the Symptom Chart to continue diagnostics.
The self-diagnostic mode has 6 manual tests available:
- Preset button 1 = ENTER DIAGNOSTICS. This test enters audio self-test from the speaker walk-around test. Press tune > button after the audio self-test to display diagnostic trouble codes.
- Preset button 2 = View continuous DTCs press tune > 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 tune > to scroll through 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 tune > to scroll through configuration list.
To exit the self-diagnostic mode, turn the ignition switch off or the audio unit off.
If the concern remains and the fault is not detected, proceed to the Symptom Chart to continue diagnostics.