Precautions For Key Registration

The key registration is a procedure that erases the current immobilizer system ID once, and then re-registers a new ID. Therefore the registered key is necessary for this procedure. Before starting the registration operation collect all registered Keys from the customer.
The immobilizer system ID registration is the procedure that registers the ID stored into the transponder (integrated in mechanical key) to BCM. The key ID registration is the procedure that registers the ID to the BCM.
When performing the key system registration only, the engine cannot be started by inserting the key into the key cylinder. When performing the immobilizer system registration only, the engine cannot be started by using the ignition key.