DIAGNOSTIC PROCEDURE
DIAGNOSTIC PROCEDURE
6
lights operate normally.)
POSSIBLE
CAUSE
z
Improper setting of NAVI map indication
z
Open or short circuit in TNS signal wiring harness (TNS signal related)
z
audio unit malfunction
z
Poor connection of the audio unit connector, terminal damage
z
Car-navigation unit malfunction
NOTE:
z
The car-navigation control switch is inoperative if the following circuit
has malfunction
{
Audio unit connector (24-pin) terminal I (UART-2)-car-navigation
unit connector (24-pin) terminal N (UART-2)
{
Audio unit connector (24-pin) terminal E (UART-1)-car-navigation
unit connector (24-pin) terminal P(UART-1)
z
When the ignition switch is turned to LOCK position, then ACC
position, display screen changes to black.
STEP
INSPECTION
ACTION
1
z
Turn the ignition switch to the ON
position.
z
Does the display screen change to the
night mode when the light switch is turned
to the TNS position, and the dimmer
cancel switch is turned to OFF?
Yes The system is normal.
No
Go to the next step.
2
z
Press the "MENU" button.
z
Select "Navigation Set Up".
z
Select "User Setting".
z
Inspect "MAP Mode".
z
Is the "MAP Mode" set to "Auto"?.
Yes Go to the next step.
No
System is normal. Set the "MAP Mode" to
"Auto".
3
z
Start diagnostic function is started.
z
Turn the light switch to TNS position.
z
Inspect the "TNS" on the diagnosis check
screen.
z
Does the "TNS" indicate "ON"?
Yes
Replace the car-navigation unit. (See
CAR-
NAVIGATION UNIT
REMOVAL/INSTALLATION
.)
No
Go to the next step.
z
Turn the ignition switch to the LOCK
position.
z
Remove the audio unit. (See
AUDIO
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 10:40:44 AM
Page 14
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