Mazda CX-7 2007 Workshop Manual page 1481

SYMPTOM TROUBLESHOOTING [CAR-NAVIGATION SYSTEM]
NO.2 DISPLAY SCREEN CHANGES TO WHITE.[CAR-NAVIGATION SYSTEM]
2 Display screen changes to white.
• Car-navigation unit malfunction
• audio unit malfunction
POSSIBLE CAUSE
• Improper adjustment of the screen contrast
Diagnostic procedure
STEP
• Turn the ignition switch to the ACC position.
1
• Shift the selector lever in R range.
• Is the rear view screen normal?
• Does the display screen change to "display
2
quality adjustment" mode when pressing the
MODE button for approx. 2 s or more?
• Select "default display" or "display quality
3
adjustment" mode in the NAVI mode.
• Press "ENTER" button.
• Does system work properly?
End Of Sie
NO.3 SYSTEM DOES NOT LOAD THE MAP DISC.[CAR-NAVIGATION SYSTEM]
3 System does not load the map disc.
• Car-navigation unit malfunction
• Map disc malfunction
• Moisture inside of car-navigation unit
• Non-designated disc is inserted
Note
• If dewdrops are formed inside of the car-navigation unit, the display screen shows the "The disc
POSSIBLE CAUSE
installed is not a map DVD" message. Remove the map disc, ventilate or remove moisture from
the passenger compartment, and then leave it for approx. 1 h. The dewdrops will be removed and
the car-navigation unit will operate normally.
• In case of a dirty/damaged map disc or car-navigation unit malfunction, the display screen will
show the "Please insert a map DVD" message for few seconds to 1 min, then change to "The disc
installed is not a map DVD" message after the ignition switch is turned to the ACC position.
• If a non-designated disc is inserted, the display screen shows the "The disc installed is not a map
DVD" message.
Diagnostic procedure
STEP
• Eject the map disc.
1
• Is the map okay?
• Eject the map disc then insert the map disc
2
again.
• Does the system load the map disc?
• Eject the map disc and clean the surface of
3
map disc with a soft cloth.
• Insert map disc again.
• Does the "Cannot Read Disc" error message
show up on the screen?
End Of Sie
INSPECTION
INSPECTION
Yes Replace the car-navigation unit.
No Go to the next step.
Yes Go to the next step.
No Replace the audio unit.
Yes Troubleshooting is completed.
No Replace the audio unit, then go to the next step.
Yes Go to the next step.
No Insert a designated disc, then go to the next step.
Yes Trouble shooting is completed.
No Go to the next step.
Yes Trouble shooting is completed.
No Replace car-navigation unit and map disc at the same time.
(consult distributor) (See 09-20-5 CAR-NAVIGATION UNIT
REMOVAL/INSTALLATION.)
id0903e8811900
ACTION
id0903e8812000
ACTION
09-03H–5
09-03H