Immobilizer System Component Replacement/Key Addition And Clearing [With Advanced Keyless System]: Foreword

When performing the following procedures, the immobilizer resetting procedure using the WDS or equivalent must also always be performed: "Keyless control module replacement", "PCM replacement", "Steering lock unit replacement", "Keyless control module and PCM joint replacement", "Keyless control module, PCM, and steering lock unit joint replacement", and "Key ID number clearing". The engine will not start unless all work is performed using the WDS or equivalent.
A card key that can start the engine is necessary for the key programming. If there is no card key that can start the engine, perform the key programming after the card key programming. (See CARD KEY ID CODE REGISTRATION [WITH ADVANCED KEYLESS SYSTEM] .)
There are two ways to add supplemental key: Using the WDS or equivalent or using two keys that can start the engine to program.
When replacing any of the immobilizer system component parts, adding/clearing keys, or performing other functions, refer to IMMOBILIZER SYSTEM FUNCTION TABLE and perform the applicable procedure (No.1 to 5).
Verify that the room fuse is equipped.

IMMOBILIZER SYSTEM FUNCTION TABLE

Ref. No.	Condition	Items necessary for procedure (prepare before starting procedure)	Cautionary notes
1	Since two or more keys that can start the engine are necessary, make a spare key. Or program an additional key.	Programming key	The WDS or equivalent is necessary for the additional key programming if "Customer spare key programming disable" is performed before the procedure using the WDS or equivalent. In this case, perform No. 2.
2	If there is only one key that can start the engine, make a spare key. If there is no key, program an additional key.	Programmed card key Programming key WDS or equivalent	-
3	Replacing the PCM only.	New PCM Programmed card key Programming keys (two or more) WDS or equivalent	-
4	Changing the additional key programming procedure. (Method for programming other keys using two keys that can start the engine is disabled.)	WDS or equivalent	The additional key programming using No. 1 cannot be performed after the procedure. It is possible to restore the setting. For restoring the setting, the WDS or equivalent is necessary.
4	Changing the additional key programming procedure. Allows programming using two keys that can start the engine.	WDS or equivalent	New vehicles have this setting.
3	Clearing the programmed key ID number.	Programming keys (two or more) WDS or equivalent	Carry out the following procedure using the WDS or equivalent, then go to NO.5 RESETTING PROCEDURE FOR THE IMMOBILIZER SYSTEM WHEN REPLACING THE RELATED PARTS (PCM, KEYLESS CONTROL MODULE, INSTRUMENT CLUSTER, OR STEERING LOCK UNIT) . Ignition key ID number clearing
3	Replacing all the keys. (Steering lock unit is not replaced)	Programmed card key Programming keys (two or more) WDS or equivalent
5	Replacing the steering lock unit.	New steering lock unit Programmed card key New keys (two or more) WDS or equivalent	Carry out the following procedure using the WDS or equivalent, then go to NO.5 RESETTING PROCEDURE FOR THE IMMOBILIZER SYSTEM WHEN REPLACING THE RELATED PARTS (PCM, KEYLESS CONTROL MODULE, INSTRUMENT CLUSTER, OR STEERING LOCK UNIT) . Ignition key ID number clearing STEERING LOCK UNIT PROGRAMMING
5	Replacing the keyless control module.	New keyless control module Card key Programming keys (two or more) WDS or equivalent	Carry out the following procedure using the WDS or equivalent, then go to NO.5 RESETTING PROCEDURE FOR THE IMMOBILIZER SYSTEM WHEN REPLACING THE RELATED PARTS (PCM, KEYLESS CONTROL MODULE, INSTRUMENT CLUSTER, OR STEERING LOCK UNIT) . Ignition key ID number clearing CARD KEY PROGRAMMING STEERING LOCK UNIT PROGRAMMING
5	Replacing the instrument cluster.	New instrument cluster Card key Programming keys (two or more) WDS or equivalent	Carry out the following procedure using the WDS or equivalent, then go to NO.5 RESETTING PROCEDURE FOR THE IMMOBILIZER SYSTEM WHEN REPLACING THE RELATED PARTS (PCM, KEYLESS CONTROL MODULE, INSTRUMENT CLUSTER, OR STEERING LOCK UNIT) ) Ignition key ID number clearing Parameter Reset
-	Replacing the coil antenna.	New coil antenna	Immobilizer system resetting is not necessary.

CAUTION:

The following conditions may cause poor signal communication between the key and vehicle, resulting in the engine not starting or a key registration error. Do not perform any work under the following conditions:
- Placing the following items close to the key grip or contacting it.
  - Spare keys
  - Keys for other vehicles equipped with an immobilizer system
  - Any metallic object
  - Any electronic device, or any credit or other card with magnetic strips
Do not place the following devices in the vehicle while programming, otherwise programming cannot be performed:
- WDS or equivalent
- Personal computer
- Devices that can send/receive the radio waves

NOTE:

The "valid key" used in this article indicates the key that can start the engine.
If the key adding, programming, clearing, and immobilizer system construction parts replacement are performed, verify that the all keys can start the engine within 5 s after the procedure.
When verifying that the engine starts, wait at least 5 s or more before starting the engine using the next key.
If the engine cannot be started using a programmed key, repeat the procedure from the beginning.
Do not start the engine unless indicated in the procedure. If the engine is started during the programming procedure, programming is stopped at that point. Repeat the procedure starting from the beginning if the engine is started before completion.
Do not place the card key in the vehicle or bring it within approx. 1 m of the vehicle unless indicated in the procedure.
Two or more key ID numbers must be programmed for the engine to start.
A maximum of eight key ID numbers can be programmed for one vehicle. The WDS or equivalent can be used to verify the number of key ID numbers programmed to a single vehicle.
Do not select a WDS or equivalent screen menu other than one indicated in the procedure.