SECURITY AND LOCKS [KEYLESS ENTRY SYSTEM]
09-14B–14
Immobilizer System Setting
• The immobilizer system can be set so that only the Mazda Modular Diagnostic System (M-MDS) or equivalent
must be used to perform system procedures. When using the Mazda Modular Diagnostic System (M-MDS) or
equivalent, first security access must be requested. Obtain security access permission according the Mazda
Modular Diagnostic System (M-MDS) or equivalent screen and then perform system procedures.
• When immobililizer system component parts (key, Instrument cluster, PCM, and coil antenna) are replaced, the
system must be reset as described below. For setting method details, see CX-9 Workshop Manual.
End Of Sie
Mazda Modular Diagnostic System (M-MDS) or
equivalent setting items
Contents
Programming an additional ignition key Allows key ID number registration.
Ignition key ID number clearing Clearing and registration of key ID numbers.
Parameter reset Initialization of either of the following:
• PCM
• Instrument cluster
Customer spare key programming enable “Method for adding other keys using two keys that can start the
engine” is enabled.
Note
• This is the default setting on new vehicles.
Customer spare key programming disable “Method for adding other keys using two keys that can start the
engine” is disabled.
Note
• When only the Mazda Modular Diagnostic System (M-MDS)
or equivalent must be used to register key ID numbers,
making a forged key by using two keys that can start the
engine is prevented. This function is for use by rental car or
other companies with vehicle fleets.
Component part Setting
Key addition Key ID number of added key must be registered. Key ID number registration is
performed according to the following methods:
• Method for registering other keys using two keys that can start the engine
• Method using the Mazda Modular Diagnostic System (M-MDS) or equivalent
Key clearing The registered key ID number can only be cleared using the Mazda Modular Diagnostic
System (M-MDS) or equivalent. When clearing a key ID number using the Mazda
Modular Diagnostic System (M-MDS) or equivalent, all key ID numbers are cleared.
PCM replacement • Parameter reset must be performed.
Instrument cluster replacement • Parameter reset must be performed.
• The key ID numbers for all keys that were being used must be registered using the
Mazda Modular Diagnostic System (M-MDS) or equivalent. Two or more keys must
be registered.
Coil antenna replacement Resetting of the immobilizer system does not need to be performed.
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