ID CODE REGISTRATION NECESSITY JUDGMENT TABLE


caution Do not replace the engine-ECU 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 engine-ECU have their own ID codes stored in them. When the cases listed in the table below occurred, the ID codes must be registered in the WCM or engine-ECU again. For the ignition key (incorporating a transmitter), a keyless entry secret code must be registered.
note Up to eight ignition keys (key ID and keyless entry secret code) can be stored in the memory of WCM.
Item
 Operation contents and procedure
 Reference page for registration contents
When the engine-ECU is replaced
 Registration of Key codes
 Key code registration (Refer to GROUP 00 - Precautions before Service - How to Perform Chassis No. Writing ).
When WCM is replaced
  1. Chassis No. programmed
  2. Register all the ignition keys again.
  3. Register the keyless entry secret code for all the ignition keys again (keys with transmitters only).
  • Write the Chassis No. (Refer to GROUP 00 - Precautions before Service - How to Perform Chassis No. Writing ).
  • Registering keys and keyless IDs (Refer to ).
When the ignition key is added as a single unit
  1. Register all the ignition keys again.
  2. Register the keyless entry secret code for all the ignition keys again (keys with transmitters only).

 Key Registration and Keyless ID Registration (Refer to )
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 entry secret code for all ignition key other than the lost ignition key again
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 bar code No.>
  2. Register the keyless entry secret code for all the ignition keys again (set supply only).

 Key Registration (Barcode No.) and Keyless ID Registration (Refer to )
When the blank key* is replaced by the door service key set, tailgate service key set or glove box service key set is added by the piece.
 Operation is not needed
 -
note *: Blank key (the key that can be used to lock/unlock the door, tailgate or glove box only)

Key supply unit
Ignition key (without transmitter)
 Ignition key (with transmitter)
note Blank key (It is the key that comes with the door service key set, tailgate service key set and the glove box service key set. It can only be used for locking and unlocking, and it cannot start the engine.)








KEY SUPPLY UNIT LIST FOR OTHER THAN INDIVIDUAL KEY
Full service key set
 Handle lock service key set
 Door service key set
 Glove box service key set
 Tailgate service key set










*: Vehicles for dead lock system
Registration flow chart