User's Manual

Title : User manual of IM900 Immobilizer Spec. No. : N/A
Written by : SUNG HUN AHN Rev. No. : Revision A
Date :2007.11.07 Page : 2 / 10
Technical Center Automotive Electronics
1 Introduction...................................................................................................................................................................................... 3
2 System Description .......................................................................................................................................................................... 3
3 System Function............................................................................................................................................................................... 4
3.1 Immobilizing Function ......................................................................................................................................................... 4
3.2 Functions for Protection against Manipulation..................................................................................................................... 4
3.2.1 Challenge and Response by SECT Algorithm .......................................................................................................... 4
4. System Components........................................................................................................................................................................ 6
4.1 Accessory Key with Integrated Transponder........................................................................................................................ 6
4.1.1 Transponder Mounting.............................................................................................................................................. 6
4.1.2 Transponder Function ............................................................................................................................................... 6
4.1.3 Transponder Specification......................................................................................................................................... 6
4.2 Coil Antenna......................................................................................................................................................................... 7
4.2.1 Coil Antenna Mounting............................................................................................................................................. 7
4.2.2 Coil Antenna Function .............................................................................................................................................. 7
4.2.3 Electrical Spec. of Coil Antenna............................................................................................................................... 7
4.2.4 Coil Driver ................................................................................................................................................................ 7
4.3 Immobilizer Electronic Control Unit (ICU) ......................................................................................................................... 8
4.3.1 Tasks ......................................................................................................................................................................... 8
4.3.2 Function .................................................................................................................................................................... 8
4.3.3 Terminal of ICU........................................................................................................................................................ 8
4.3.4 General Specification................................................................................................................................................ 9