Navigation Audio Control Module (ACM) Self-Diagnostics

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The navigation system provides on-board diagnostics to assist with diagnosing a concern. To carry out self-diagnostics, do the following:

Press and hold preset buttons 3 and 6 simultaneously for 3 seconds.

Press the "End Test" icon on the screen to exit the speaker walk-around test.

Fig 1: Bezel Diagnostics Screen Display - Speaker Walk Test Active

Courtesy of FORD MOTOR CO.

The following options are available using the on-screen buttons:

Fig 2: Bezel Diagnostics Screen Display - On-Screen Buttons

Courtesy of FORD MOTOR CO.

On Demand Self Test: provides internal self-test diagnostics and displays all the DTCs resulting from the self-test.
View DTC's: provides a list of all DTCs currently stored in memory.
Configuration Status: displays the current navigation ACM configuration.
System Info: displays the navigation ACM part number and software information.
GPS Info: provides satellite and current vehicle information.
Speaker Walk Test: performs the speaker walk-around test.
Multi-disc Test: checks the status of the CD player mechanism.
Display Test: allows checking of the screen colors, and allows checking individual sectors of the touch screen.
Hardkey Test: provides the status (active/not active) of the ACM buttons and touch screen.
Radio Signal Strength: tests the antenna signal.
Exit Diagnostics: exits diagnostics and returns to the main navigation screen.

If the concern remains and the fault is not detected, go to Symptom Chart - Navigation to continue diagnostics.