Normal Operation
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The compass receives battery voltage from the central junction box (CJB) fuse 3 (15A) through circuit 137 (YE/BK). Ground for the compass is provided by circuit 1205 (BK). The display is backlight only when the headlamp switch is in the PARK or in the HEADLAMPS ON positions.
The compass and ambient air temperature display can be turned off and on by pressing the SELECT switch in the overhead console. The vehicle heading is displayed as N, NE, E, SE, S, SW, W, or NW.
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Compass zone setting
- Compass calibration
- Compass and ambient air temperature display
- Panel illumination system concern
- Vehicle magnetization