Symptom Chart

Condition	Possible Sources	Action
The compass is inoperative	Fuse Wiring, terminals or connectors Interior rear view mirror	Go to Pinpoint Test A .
The compass is inaccurate	Incorrect compass zone setting Compass calibration Interior rear view mirror	Go to Pinpoint Test B .
The display is locked in one position - all segments on	Interior rear view mirror	INSTALL a new interior rear view mirror. REFER to REAR VIEW MIRRORS article. TEST the system for normal operation.
The display is locked in one position - display of "C" or "CAL"	Compass has lost calibration Interior rear view mirror	CYCLE the ignition and DRIVE slowly in circles until the "C" or "CAL" disappears and the compass returns to a normal display. If this does not occur within 5 complete circles, INSTALL a new interior rear view mirror. REFER to REAR VIEW MIRRORS article. TEST the system for normal operation.