Mazda CX-9 Grand Touring. Manual - part 523

NO.4 VEHICLE POSITION DEVIATES FROM THE ROUTE MAP. [CAR-
NAVIGATION SYSTEM] 

TROUBLESHOOTING CHART 

DIAGNOSTIC PROCEDURE 

DIAGNOSTIC PROCEDURE 

1



Eject the map disc.  



Is the map okay?  

Yes Go to the next step.

No

Insert a designated disc, then go to the next step.

2



Eject the map disc then 
insert the map disc 
again.  



Does the system load 
the map disc?  

Yes Trouble shooting is completed.

No

Go to the next step.

3



Eject the map disc and 
clean the surface of 
map disc with a soft 
cloth.  



Insert map disc again.  



Does the "Cannot Read 
Disc" error message 
show up on the screen?  

Yes Trouble shooting is completed.

No

Replace car-navigation unit and map disc at the same time, 

(consult distributor) (See CAR-NAVIGATION UNIT 

REMOVAL/INSTALLATION .)

4

Vehicle position deviates from the route map.

POSSIBLE 

CAUSE 



Jammed radio signals from after market equipment (radar, remote engine 
starter, anti-theft device etc.)  



Open or short circuit in the wiring harness (vehicle speed signal related).  



Car-navigation unit malfunction.  



Poor connection of the GPS antenna connector, terminal damage  



GPS antenna malfunction.  



Open or short circuit in feeder line between GPS antenna feeder and car-
navigation unit.  

STEP

INSPECTION

ACTION

1



Is any of the following after-market 
equipment installed? (Inspect especially 
near the GPS antenna.) 



Radar  



Remote engine starter  



Anti-theft device.  

Yes Go to the next step.

No

Go to Step 3.

 

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

Page 8 

© 2005 Mitchell Repair Information Company, LLC. 



Other  

2



Remove the after-market equipment. 



Drive the vehicle without any obstacles.  



Does the vehicle indicator follow the 
steering wheel direction?  

NOTE:



The procedure requires an 
assistant.  

Yes

System is normal. The after-market electrical 
device might be interrupting to the GPS 
reception.

No

Go to the next step.

3



Position the vehicle without any obstacles 
and receive GPS for 5 min at idle.  



Does "GPS" show up on the left lower 
side of the display screen?  

Yes Go to the next step.

No

Go to Step 8.

4



Start the diagnostic function.  



Drive the vehicle.  



Check the "Speed" on the diagnosis 
screen.  



Does the "Speed" change according to the 
vehicle speed? 

CAUTION:



This procedure requires an assistant. 

NOTE:



If the engine is started after 
diagnostic functions activated, 
the diagnostic function mode is 
reset.  

Yes Go to the next step.

No

Go to Step 6.

5



Drive the vehicle and turn the steering 
wheel to the left and/or right.  



Does the vehicle indicator follow the 
steering direction?  

CAUTION:



This procedure requires an assistant. 

Yes

The system is normal. 

NOTE:



The vehicle indicator might be out of 
position in the following areas: 



Parallel road, high-level road, 
loop road, tower type parking, 
high-rise buildings lot  

No

Replace the car-navigation unit. (See CAR-

NAVIGATION UNIT 

REMOVAL/INSTALLATION .)



Turn the ignition switch to the LOCK 
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

Page 9 

© 2005 Mitchell Repair Information Company, LLC. 

6



Remove the car-navigation unit. (See 
CAR-NAVIGATION UNIT 
REMOVAL/INSTALLATION .)  



Inspect the connection of the car-
navigation unit connector (16-pin).  



Is the connector securely connected?  

No

Securely connect the car-navigation unit 

connector.

7



Disconnect the car-navigation unit 
connector (16-pin).  



Inspect both car-navigation unit connector 
and wiring harness-side connector 
terminal H for poor connection (such as 
damaged/pulled-out pins, corrosion).  



Are all the pins normal?  

Yes

Inspect for vehicle speed signal input circuit.
Repair or replace if necessary.

No

If the car-navigation unit connector is 

wrong:  



Replace the car-navigation unit. (See 

CAR-NAVIGATION UNIT 

REMOVAL/INSTALLATION .)  

 

If the wiring harness-side connector is 

wrong:  



Repair or replace the pins and/or the 

connector.  

8



Turn the ignition switch to ON position.  



Start the diagnostic function.  



Inspect the "GPS antenna" on diagnosis 
screen.  



Is the "OK" indicated?  

NOTE:



If the engine is started after diagnostic 
functions activated, the diagnostic 
function mode is reset.  

Yes Go to the next step.

No

Go to Step 6.

9



Turn the ignition switch to the LOCK 
position.  



Remove the car-navigation unit. (See 
CAR-NAVIGATION UNIT 
REMOVAL/INSTALLATION .)  



Inspect the connection of the car-
navigation unit connector and GPS 
antenna connector.  



Is the connector securely connected?  

Yes Go to the next step.

No Securely connect the GPS antenna connector.

Yes

Replace the car-navigation unit. (See CAR-
NAVIGATION UNIT 
REMOVAL/INSTALLATION .)

 

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 10 

© 2005 Mitchell Repair Information Company, LLC. 

NO.5 NO VOICE NAVIGATION [CAR-NAVIGATION SYSTEM] 

TROUBLESHOOTING CHART 

DIAGNOSTIC PROCEDURE 

DIAGNOSTIC PROCEDURE 

10



Disconnect the GPS antenna connector.  



Inspect both GPS antenna connector and 
car-navigation unit connector for poor 
connection (such as damaged/pulled-out 
pins, corrosion).  



Are all the pins normal?  

No

If the wiring harness-side connector is 

wrong:  



Repair or replace the suspect wiring 

harness.  

 

If the car-navigation unit side connector is 

wrong:  



Replace the car-navigation unit. (See 

CAR-NAVIGATION UNIT 

REMOVAL/INSTALLATION .)  

5

No voice navigation

POSSIBLE 

CAUSE 



Improper adjustment of the NAVI voice volume  



Car-navigation unit malfunction  



Poor connection of the driver-side front door speaker connector, terminal 
damage  



Driver-side front door speaker malfunction  



Poor connection of the car-navigation unit connector, terminal damage  



Open or short circuit in driver-side front door speaker wiring harness  



Poor connection of the audio amplifier connector, terminal damage  

STEP

INSPECTION

ACTION

1



Is the voice navigation volume mute?  

Yes Go to the next step.
No

Turn on the voice navigation.

2



Turn the audio power switch (CD, MD, 
radio) to ON.  



Does the driver-side front door speaker 
work?  

Yes Go to step 7.

No

Go to the next step.

3



Turn the ignition switch to the LOCK 
position.  



Remove the driver-side front door 
speaker. (See FRONT DOOR 
SPEAKER 

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 11 

© 2005 Mitchell Repair Information Company, LLC.