Symptom Troubleshooting Index

SYMPTOM TROUBLESHOOTING CHART

Symptom	Diagnostic Procedure	Also Check for
Azimuth (direction) information is not shown on the display	Electrical Compass Troubleshooting (see Electrical Compass Troubleshooting )
No picture is shown on the display	Audio system symptom troubleshooting: With USB adapter (see AUDIO SYSTEM INFORMATION DOES NOT DISPLAY ON THE AUDIO DISPLAY-USB ADAPTER CONTROL UNIT (WITHOUT NAVIGATION, WITH USB ADAPTER) ) Without USB adapter (see AUDIO SYSTEM INFORMATION DOES NOT DISPLAY ON THE AUDIO DISPLAY UNIT (WITHOUT NAVIGATION, WITHOUT USB ADAPTER) )	The display brightness setting
Compass shows wrong direction	Compass Zone Selection and Calibration (see Electrical Compass Zone Selection and Calibration )	Check if the zone setting is correct for the vehicle geographical location Audio unit (B-CAN)
Compass does not calibrate	Electrical Compass Troubleshooting (see Electrical Compass Troubleshooting )	Audio unit (B-CAN)
Self-test has failed (flashing the CAL and NW)	Electrical Compass Troubleshooting (see Electrical Compass Troubleshooting )	Reboot the electrical compass unit