Principles of Operation: Diagnostics

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

The navigation system provides internal self-diagnostics to assist with diagnosing vehicle concerns.

Fig 1: Identifying Audio/Navigation Panel

Courtesy of FORD MOTOR CO.

Press and hold the AUDIO and MENU buttons for 5 seconds.

Fig 2: Identifying Audio And Navigation Menu Buttons

Courtesy of FORD MOTOR CO.

Press 917 Enter.

Fig 3: Selecting Navigation Diagnostics Info

Courtesy of FORD MOTOR CO.

SELF CHECK provides internal self-test diagnostics. These DTCs are also accessible through the SCP network utilizing a diagnostic tool.
NAVIGATION INFO provides access to speed signal, gyro, reverse input, and GPS information.
SUB-SYSTEM INFO provides the various component configurations.
MANUAL CHECK provides access to several diagnostics input tests:
- Voice Output will verify the audio signals from the navigation system module and audio unit.
- Hard Switch Test will check the various hardkey switches.
- Microphone Test will check the strength of the voice signal.