Mazda CX-9 Grand Touring. Manual - part 513

and then remove key 2.  

21. If programming one more keys, repeat Steps 18 to 20 with a key to be programmed as key 3. If the 

vehicle is left with the ignition switch in the ON position for 1 min or more, additional key programming 
according to Steps 18 to 20 is disabled. If this occurs, refer to the "M-MDS CONNECTING 
PROCEDURE" to program any additional keys. (See M-MDS MENU.)  

22. Start the engine with key 1.  

23. Verify that the security light and keyless warning light operate as follows: 



From the point when the ignition switch is turned to the ON position, the security light illuminates 
for approx. 3 s , and goes out.  



The keyless warning light illuminates when the ignition switch is turned to the ON position, and the 
light goes out after approx. 1 s , and then displays the number of the programmed keys. 

Fig. 97: Identifying Blinking Pattern - Keyless Warning Light 
Courtesy of MAZDA MOTORS CORP. 

24. After verifying that the keyless warning light goes out, turn the ignition switch to the LOCK position 

using key 1, and then remove the key.  

25. Repeat Steps 22 to 24 using key 2 instead of key 1. 

26. Start the engine using the card key. 

NOTE:



If three or more keys have already been programmed, perform Steps 
22 to 24.  

CAUTION:



Remove any key from the key cylinder.



Close all doors.  

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Security and Locks - Mazda CX-9

  

Microsoft 

 

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27. Verify that the security light and keyless warning light operate as follows: 



From the point that ignition switch is turned to the ON position, the security light illuminates for 
approx. 3 s , and goes out.  



The keyless warning light illuminate when the ignition switch is turned to the ON position for 
approx. 1 min , and goes out.  

28. After verifying that the keyless warning light goes out, turn the ignition switch to the LOCK position.  

29. Verify that the all keys can start the engine for 5 s or more after the procedure.  

IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND 
CLEARING [KEYLESS ENTRY SYSTEM] 

FOREWORD 



The immobilizer resetting procedure using the M-MDS must also always be performed when performing 
the following procedure: "instrument cluster replacement", "PCM replacement", "instrument cluster and 
PCM joint replacement", and "key ID number clearing". The engine will not start unless all work is 
performed using the M-MDS.  



For adding a key, there are two ways, either using the M-MDS or using two keys with which the engine 
can be started.  



When replacing any of the immobilizer system component parts, adding/clearing keys, or performing 
other functions, refer to the following table and perform the applicable procedure (No.1 to 7).  

IMMOBILIZER SYSTEM COMPONENT REPLACEMENT REFERENCE 



Bring the card key into the vehicle.  

Reference 

number

Situation

Required items

Cautionary notes

1

Have two or more keys with which 
the engine can be started, and 
making a spare key, or programming 
an additional key. (See NO.1 
ADDITIONAL KEY 
REGISTRATION PROCEDURE 
(USING TWO VALID KEYS).)



Registration 
key  



The M-MDS is necessary 
for the additional key 
programming if "Customer 
Spare Key Programming 
Disable" is set before the 
procedure using the M-
MDS. In this case, perform 
No. 2.  

2

If there is only one key that can start 
the engine, make a spare key. If there 
is no key, program an additional key. 
(See NO.2 ADDITIONAL KEY 
REGISTRATION PROCEDURE 
(USING THE M-MDS).)



Registration 
key  



M-MDS  

-



All the key ID numbers 
programmed to the vehicle 

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Security and Locks - Mazda CX-9

  

Microsoft 

 

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3

Clearing the programmed key ID 
number. 
(See NO.3 KEY REPLACEMENT 
PROCEDURE (CLEARING 
PREVIOUSLY PROGRAMMED 
KEY ID NUMBERS, KEY RE-
PROGRAM).)



Registration 
keys (Two or 
more)  



M-MDS  

will be cleared.  



Unless keys are 
reprogrammed after the 
procedure, the engine 
cannot be started. Before 
beginning the procedure, 
verify that the customer has 
turned in all of the keys for 
the vehicle.  



Two or more keys need to 
be programmed after the 
procedure to start the 
engine.  



The keys (two or more) to 
prepare for the procedure do 
not have to be new ones; 
there is no problem with 
using the keys with which 
the engine can be started.  

3

Replace all the keys. (Steering lock 
replacement or similar procedure) 
(See NO.3 KEY REPLACEMENT 
PROCEDURE (CLEARING 
PREVIOUSLY PROGRAMMED 
KEY ID NUMBERS, KEY RE-
PROGRAM).)



New keys 
(two or more) 



M-MDS  



The previous keys will be 
invalid since the steering 
lock is replaced. Have two 
or more new keys ready for 
programming before 
beginning the procedure.  



Unless keys are 
reprogrammed after the 
procedure, the engine 
cannot be started.  

4

Changing the additional key 
programming procedure. (Method 
for programming other keys using 
two keys that can start the engine is 
disabled.) 
(See NO.4 ADDITIONAL KEY 
PROGRAMMING PROCEDURE 
CHANGING.)



M-MDS  



The additional key 
programming using No. 1 
cannot be performed after 
the procedure. It is possible 
to restore the setting. For 
restoring the setting, the M-
MDS or equivalent is 
necessary.  

4

Changing the additional key 
programming procedure. (Allows 
programming using two keys that 
can start the engine.) (See NO.4 
ADDITIONAL KEY 
PROGRAMMING PROCEDURE 
CHANGING.)



M-MDS  



New vehicles have this 
setting.  



Unless keys are 

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Security and Locks - Mazda CX-9

  

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5

Replacing the instrument cluster 
only. 
(See NO.5 RESETTING 
PROCEDURE FOR THE 
IMMOBILIZER SYSTEM 
WHEN REPLACING THE 
INSTRUMENT CLUSTER 
REPLACEMENT.)



New 
instrument 
cluster  



Registration 
keys (two or 
more)  



M-MDS  

reprogrammed after the 
procedure, the engine 
cannot be started. Before 
beginning the procedure, 
verify that the customer has 
turned in all of the keys for 
the vehicle.  



Two or more keys need to 
be programmed after the 
procedure to start the 
engine.  



The keys (two or more) to 
prepare for the procedure do 
not have to be new ones; 
there is no problem with 
using the keys with which 
the engine can be started.  

6

Replacing the PCM only. (See NO.6 
RESETTING PROCEDURE FOR 
THE IMMOBILIZER SYSTEM 
WHEN REPLACING THE PCM.)



Replacement 
PCM  



M-MDS  

-

7

Replacing the PCM and instrument 
cluster at the same time. 
(See PROCEDURE.)



New PCM  



New 
instrument 
cluster  



Registration 
keys (two or 
more)  



M-MDS  



Unless keys are 
reprogrammed after the 
procedure, the engine 
cannot be started. Before 
beginning the procedure, 
verify that the customer has 
turned in all of the keys for 
the vehicle.  



Two or more keys need to 
be programmed after the 
procedure to start the 
engine.  



The keys (two or more) to 
prepare for the procedure do 
not have to be new ones; 
there is no problem with 
using the keys with which 
the engine can be started.  

-

Replacing the coil antenna.



New coil 
antenna  



Immobilizer system 
resetting is not necessary.  

CAUTION:



If any of the following items are touching or near the key head, signal 
communication between the key and vehicle is negatively affected, 

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Security and Locks - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:47:59 AM

Page 82 

© 2005 Mitchell Repair Information Company, LLC.