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.
Press and hold the AUDIO and MENU buttons for 5 seconds.
Press 917 Enter.
- 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.