Engine Immobilizer System: Replacement

HINT:

The key has 2 codes: the key code (immobilizer code) and the wireless code. Both of these types need to be registered. Refer to DOOR CONTROL TRANSMITTER ASSY for the wireless code registration procedures.

1. When adding master keys (including the flat key) and sub-keys (Additional registration).
   1. Register the key code (immobilizer code) to the transponder key ECU.

Fig 1: Registering Immobilizer Code (When Adding Master Keys)

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1. Register the key code (immobilizer code) in the transponder key ECU.
   Fig 2: Registering Immobilizer Code (When Replacing Transponder Key ECU)

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2. Register the ECU COMMUNICATION ID between the ECM and the transponder key ECU.

Fig 3: Registering ECU Communication ID (When Replacing Transponder Key ECU)

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1. Register the ECU COMMUNICATION ID between the ECM and the transponder key ECU.

Fig 4: Registering ECU Communication ID (When Replacing ECM)

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1. The new registration of the key codes (immobilizer codes) is made automatically.

   HINT:

   • When you install a new transponder key ECU, the key codes (immobilizer codes) must be registered.
   • A new transponder key ECU starts in the automatic key code registration mode. In this mode, a maximum of 4 key codes for 3 master keys (including the flat key) and 1 sub-key can be registered. Since the transponder key ECU can distinguish types of keys, the registration order is not specified.
   • When registering the flat key, bring the key case close to the ignition key cylinder, because a transponder chip for the key code (immobilizer code) is built in the key case of the flat key.
     Fig 5: Automatic Key Code Registration (New Registration)

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   HINT:

   • When no key is inserted in the ignition key cylinder in the automatic key code registration mode, the security indicator will remain on.
   • When the immobilizer system operates normally and the key is pulled out, the security indicator blinks.
   NOTE: If the key code registration has failed in the automatic key code registration mode, code 2-1 will be output from the security indicator. Trying to re-register an already registered key will cause code 2-2 to be output when the key is inserted. The output details are shown below.