Hidden diagnostic trouble code display in crown Victoria

This video will show you how to access the IC (instrument cluster) SELF TEST-MODE which will provide you with valuable list information about your car. Such as bat volt, tach, dtc info, etc

HOW TO:
hold down the right button in the dashboard, and turn on the ignition.

Cycle through all the settings, till you get to “dtc” (Diagnostic Trouble Codes).