Engine Immobilizer System: Registration

1. When adding master keys and sub-keys (Additional registration).
   1. Register the key code (immobiliser code) in the transponder key ECU.
   TRANSPONDER KEY ECU REFERENCE
   
   

   Target ECU	See Step
   Transponder key ECU	3.

2. When replacing the transponder key ECU (New registration).
   1. Register the key code (immobiliser code) in the transponder key ECU.
      TRANSPONDER KEY ECU REFERENCE
      
      

      Target ECU	See Step
      Transponder key ECU	2.

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

   Target ECU	See Step
   ECM	5.

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

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

   HINT:

   • When you install a new transponder key ECU, the key codes (immobiliser 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 and 1 sub-key can be registered. Since the transponder key ECU can distinguish types of keys, the registration order is not specified.
   Fig 1: Key Registration In Automatic Registration Flow Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   • When no key is inserted in the ignition key cylinder in the automatic key code registration mode, the security indicator remains on.
   • When the immobiliser system is operating 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.
   Fig 2: Bliking Patterin

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Finish the automatic key code registration mode.

   The automatic key code registration mode can be forced to end when at least 1 key code (immobiliser code) for the master key has been registered.

   1. Turn the ignition switch ON/OFF alternately 5 times within 10 seconds using the already registered master key.

1. Register an additional key by using the hand-held tester.

HINT:

• A maximum of 5 master key codes and 3 sub-key codes can be registered.
• Registration mode will end if each step is not completed within the specified time.
• When the ignition cylinder or the key cylinder set is replaced, remove the transmitter module from the original master key. Then install this transmitter module to a new key and use it as master key. If necessary, use this master key to register other keys.

Fig 3: Additional Registration Flow Chart

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

• A brief outline of procedures for key code registration is shown on this page. For detailed information, please refer to the .
• When the immobiliser system is operating normally and the key is pulled out, the security indicator blinks.

1. Erase key codes by using the hand-held tester.

HINT:

• All key codes are erased except for the master key which is used for erasing the key codes. In order to use a key for which the code has been erased, it is necessary to register the key code again.
• Registration operation will be cancelled if each step is not completed within the specified time.

Fig 4: Erasure Of Key Code Flow Chart

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

• A brief outline of procedures for key code registration is shown on this page. For detailed information, please refer to the prompts on the screen of the hand-held tester.
• When the immobiliser system is operating normally and the key is pulled out, the security indicator blinks.

1. Register the ECU communication ID.
   1. After the transponder key ECU and/or the ECM is replaced, turn the ignition switch ON (the engine is not running).
   2. Short the TC and CG terminals of the DLC3 and leave it as is for 30 minutes.
   3. Check that the engine starts.