Navigation Audio System

Turn the Audio Control Module (ACM) on.
Operate the audio system in radio tuner (AM/FM) mode.
Press and hold preset buttons 3 and 6 for 3 seconds until the speaker walk test begins.
- The display indicates each speaker as it is tested.
Before the speaker walk test is complete, press the "End Test" selection.
NOTE: If the speaker walk test is the only test required, this procedure can be stopped after this step, or by allowing the speaker walk test to complete on its own.

Fig 1: Navigation Audio System Display - Bezel Diagnostics Menu
Courtesy of FORD MOTOR CO.

The following tests are available through the "BEZEL DIAGNOSTICS" menu:

DIAGNOSTIC FUNCTION TABLE

Display Selection	Diagnostic Function Description
On Demand Self Test	The ACM carries out a self-test. At the end of the self-test, the display either indicates "Test Passed" or lists any DTCs present. Note that the self-test may not indicate all DTCs that are present. If DTCs are suspected, retrieve continuous and on-demand DTCs using the scan tool.
View DTCs	The ACM displays any DTCs that are present. If there is more than a full screen of DTCs present, to scroll through the DTCs, press the down arrow on the display. If no DTCs are present, the display reads NO DTCS. Press the "Clear DTCs" selection to clear any DTCs present.
Configuration Status	The display shows the ACM configuration. A "0" indicates the item is configured off, while a "1" indicates the item is configured on. If the ACM appears to be misconfigured, refer to MODULE CONFIGURATION .
System Info	The ACM displays system information for various components of the audio system. The following items are most important for servicing the audio system: Nav Radio Part Number - provides the ACM part number ESN1 - provides the satellite radio Electronic Serial Number (ESN)
GPS Info	The current Global Positioning System (GPS) satellite information is shown, along with the current vehicle position. Pressing the "SV Status" selection provides additional information, if present.
Speaker Walk Test	The ACM carries out the speaker walk test.
DVD Mechanism Test	The ACM tests the internal CD/DVD drive mechanism.
Display Test	This test provides for testing of the touchscreen colors and the touchscreen sectors. Pressing any of the colors on the display causes the whole display to change to that color; pressing the display again returns to the Display Test menu. Pressing the "Touchscreen Activation Test" selection enters the touchscreen sector test. Press any area of the screen to test the touchscreen sector; press the "X" at the RH lower corner of the display to return to the Display Test menu.
Hardkey Test	This test provides for testing of the ACM buttons (not the touchscreen). When each button is pressed, the screen displays the button that is active. This test can also be used to isolate a stuck button.
Radio Signal Strength	The ACM displays the AM/FM antenna signal strength. To run this test, the audio system should be in AM radio tuner mode before entering the ACM self-diagnostic mode.
HDD Test	The ACM tests its internal hard drive.
Sensor I/O Status	The ACM displays inputs it is receiving from external sources. These inputs include: Ignition - indicates ON (ignition in ACC or RUN) or OFF Brake - indicates ON (vehicle in PARK) or OFF (vehicle not in PARK) Illumination - indicates ON or OFF Reverse Gear - indicates ON (vehicle in REVERSE) or OFF (vehicle not in REVERSE)
Microphone Test	The ACM tests the microphone by supplying a test tone and monitoring the input from the microphone. If there is a concern with the microphone input, the ACM sets DTC B1D79:01. For diagnostics, refer to DIAGNOSIS AND TESTING .
SDARS Signal Strength	The ACM displays the satellite radio antenna signal strength.

To exit the self-diagnostic mode, press the "Exit Diagnostics" selection from the "BEZEL DIAGNOSTICS" menu.