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Id Codes Registration Judgment Table: Notes

CAUTION: Do not replace the engine control module (ECM) and WCM at the same time. When replacing several ECUs, always replace one ECU at a time, register the necessary IDs in it, and then replace the next ECU.

The transponder (a small transmitter) in the ignition key, WCM, and the ECM have their own ID codes stored in them. When the cases listed in the table below occur, the ID codes must be registered in the WCM or ECM again.

NOTE: Up to eight ignition keys (key ID and keyless entry secret code) can be stored in the memory of WCM.
ID CODES REGISTRATION JUDGMENT CHART

Item Operation contents and procedure Reference page for registration contents
When the ECM is replaced Registration of Key codes Key code registration (Refer to HOW TO PERFORM VIN WRITING ).
When WCM is replaced
  1. VIN programmed
  2. Register all the ignition keys again.
  3. Register the keyless ID for all the ignition keys again (keys with transmitters only).
  4. Register the TPMS transmitters
When the ignition key is added as a single unit
  1. Register all the ignition keys again.
  2. Register the keyless ID for all the ignition keys again (keys with transmitters only).
Key Registration and Keyless ID Registration (Refer to ID CODES REGISTRATION PROCEDURE ).
When the ignition key is lost as a single unit
  1. Register all the ignition keys other than the lost one again.
  2. Register the keyless ID for all ignition key other than the lost ignition key again
When the ignition key is replaced or added by the immobilizer key assembly is replaced by the piece. Register all ignition keys again input barcode No. Key Registration (Barcode No.) (Refer to ID CODES REGISTRATION PROCEDURE ).
When the ignition key is replaced or added by the immobi and keyless key assembly is replaced by the piece.
  1. Register all ignition keys again input barcode No.
  2. Register the keyless ID for all the ignition keys again (set supply only).
Key Registration (Barcode No.) and Keyless ID Registration (Refer to ID CODES REGISTRATION PROCEDURE )
When the ignition key is replaced by the full service key set or the handle lock service key set is replaced by the piece.
  1. Register all ignition keys again input barcode No.
  2. Register the keyless ID for all the ignition keys again (set supply only).
When the blank key(1) is replaced by the door service key set or trunk lid service key set is added by the piece. Operation is not needed -
When TPMS transmitter is replaced Register the TPMS transmitters TPMS transmitter ID registration (Refer to ID CODES REGISTRATION PROCEDURE ).
NOTE:
(1) Blank key (the key that can be used to lock/unlock the door or trunk lid only)