Pinpoint Test C: The Compass Is Inaccurate

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

C1 CHECK THE COMPASS ZONE SETTING AND CALIBRATION
- Demagnetize the vehicle. Refer to VEHICLE DEMAGNETIZING .
- Does the compass calibrate correctly?
Yes: GO to C2.

No: INSTALL a new compass sensor module. SET the zone. REFER to COMPASS ZONE ADJUSTMENT . CALIBRATE the compass. REFER to COMPASS CALIBRATION . TEST the system for normal operation.

C2 CHECK COMPASS ACCURACY

Position the vehicle and observe the compass display as follows:

COMPASS ACCURACY

Direction	Compass Display
North	N
Northeast	NE
East	E
Southeast	SE
South	S
Southwest	SW
West	W
Northwest	NW

Does the compass display as indicated?

Yes The compass is OK. The concern may have been caused by a magnetized vehicle.

No INSTALL a new compass sensor module. SET the zone. REFER to COMPASS ZONE ADJUSTMENT .

CALIBRATE the compass. REFER to COMPASS CALIBRATION . TEST the system for normal operation.