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IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING OUTLINE

BHE091401077T07

• When performing the following procedures, the immobilizer resetting procedure using the WDS must also always be performed: "Keyless unit replacement", "PCM replacement", "Keyless unit and PCM joint replacement", "Key ID number clearing". The engine will not start unless all work is performed using the WDS.

• When replacing any of the immobilizer system component parts, adding/erasing keys or performing other functions, refer to the following table. For repair procedures, refer to the Mazda RX-8 Workshop Manual (1796-1*-03D) Section 09-14, "IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING".

Situation | Items neccesary to perform procedure (always have these ready before beginning the procedure) | Cautionary notes
--- | --- | ---
Making a spare key when the customer has two or more keys that can start the engine. Or registering an additional key. | • Keys for registration | • If "Customer Spare Key Programming Disable" has previously been performed using the WDS, the WDS must be used to register an additional key.
Making a spare key when the customer has one key that can start the engine or no keys. Or registering an additional key. | • Keys for registration • WDS | -
Clearing previously registered key ID numbers. | • Keys for registration (two or more keys) • WDS | • All key ID numbers registered in the vehicle are cleared. • Unless keys are re-registered after clearing the key ID numbers, the engine cannot be started. Before beginning the procedure, verify that the customer has turned in all of the keys for the vehicle. • Unless two or more keys are registered after clearing the key ID numbers, the engine cannot be started. • The keys (two or more keys) readied before beginning the procedure do not have to be new keys. Any key that is capable of starting the engine before beginning the procedure can be used.
Replacing all keys. (When replacing the steering lock or similar procedure) | • New keys (two or more keys) • WDS | • Since the steering lock is replaced, keys used before replacement become unusable. Have two new keys or more ready before beginning the procedure. • Unless keys are registered after replacing the steering lock, the engine cannot be started.
Changing the method for registering additional keys. (Method for registering other keys using two keys that can start the engine is disabled.) | • WDS | • After performing this procedure, additional keys can only be registered using the WDS. • The setting can be changed to the original using the WDS.
Changing the method for registering additional keys. (Method for registering other keys using two keys that can start the engine is enabled.) | • WDS | • This is the default setting on new vehicles.
Replacing the keyless unit only. | • New keyless unit • Keys for registration (two or more keys) • WDS | • Unless keys are re-registered after replacement, the engine cannot be started. Before beginning the procedure, verify that the customer has turned in all of the keys for the vehicle. • Unless two or more keys are registered after replacement, the engine cannot be started. • The keys (two or more keys) readied before beginning the procedure do not have to be new keys. Any key that is capable of starting the engine before beginning the procedure can be used.
Replacing the PCM only. | • New PCM • WDS | -
Replacing the PCM and keyless unit. | • New PCM • New keyless unit • Keys for registration (two or more keys) • WDS | • Unless keys are re-registered after replacement, the engine cannot be started. Before beginning the procedure, verify that the customer has turned in all of the keys for the vehicle. • Unless two or more keys are registered after replacement, the engine cannot be started. • The keys (two or more keys) readied before beginning the procedure do not have to be new keys. Any key that is capable of starting the engine before beginning the procedure can be used.
Replacing the coil. | • New coil | • It is not neccessary to reset the immobilizer system.
Replacing the instrument cluster. | • New instrument cluster | • It is not neccessary to reset the immobilizer system.