Self Diagnostics
WARNING: This page is about a different car, the 2004 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Although on the SCP network, the navigation system provides internal 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 switches.
- Microphone Test will check the strength of the voice signal.