ELECTRONIC KEY REGISTRATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an electronic key registration system capable of ensuring security of electronic key registration.SOLUTION: For example, if the ECU of a vehicle 1 gets out of order, the ECU (replaced ECU 31) having got out of order needs to be replaced with a new ECU (replacing ECU 32). Key registration on the replacing ECU 32 is completed by switching the replacing ECU 32 to a registration mode for an electronic key 2 by a registration tool 20, and inserting an electronic key 2 used for the replaced ECU 31 into the key cylinder 43 of the vehicle 1 and rotating the electronic key to an ON position. At this time, the replacing ECU 32 reads an electronic key ID and a before-replacement on-vehicle unit ID out of the electronic key 2 by radio, and transmits the electronic key ID, the before-replacement on-vehicle unit ID, and an after-replacement on-board unit ID as ID information Did to a center 21. The center 21 performs ID collation with the ID information Did received from the registration tool 20, and allows electronic key registration when the ID collation is successful.