SYSTEM]
TROUBLESHOOTING CHART
DIAGNOSTIC PROCEDURE
DIAGNOSTIC PROCEDURE
1
Display screen changes to black.
POSSIBLE
CAUSE
z
Open or short circuit in car-navigation unit (power supply (B+)) wiring
harness
z
Open or short circuit in car-navigation unit (power supply (ACC)) wiring
harness
z
Open or short circuit in car-navigation unit (GND) wiring harness
z
Open or short circuit in wiring harness between audio unit and car-navigation
unit
z
Poor connection of rear mount camera control module connector, terminal
damage
z
Open or short circuit in audio unit (power supply (B+)) wiring harness
z
Open or short circuit in audio unit (power supply (ACC)) wiring harness
z
Open or short circuit in audio unit (power supply (IG1)) wiring harness
z
Open or short circuit in audio unit (GND) wiring harness
z
Open or short circuit in wiring harness between audio unit and rear view
monitor
z
Poor connection of car-navigation unit connector, terminal damage
z
Poor connection of audio unit connector, terminal damage
z
Car-navigation unit malfunction
z
Audio unit malfunction
STEP
INSPECTION
ACTION
1
z
Turn the ignition switch to the
ACC position.
z
Does the display screen change
from blank to NAVI mode when
pressing the joystick of the car-
navigation control switch?
Yes
The system is normal.
NOTE:
z
If the "VOICE" button is pressed for
approx.
2 s or more
, the "DISP OFF" menu appears
on the bottom-left side of screen. If "DISP
OFF" mode is selected, the audio unit will
not display anything. "DISP OFF" mode is
cancelled when the ignition switch is turned
to the LOCK position or the joystick of the
car-navigation control switch is pressed.
No
Go to the next step.
z
Shift the selector lever in R
position.
Yes Go to the next step.
2008 Mazda CX-9 Grand Touring
2008 BODY & ACCESSORIES Symptom Troubleshooting (Car Navigation System) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:40:43 AM
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