User's Manual

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USER MANUAL

& OPERATIONAL DESCRIPTION

of IM900 Immobilizer

S&T DAEWOO CO., LTD.

Summary of content (10 pages)

PAGE 1
USER MANUAL & OPERATIONAL DESCRIPTION of IM900 Immobilizer S&T DAEWOO CO., LTD.
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Title : User manual of IM900 Immobilizer Spec. No. : N/A Written by : SUNG HUN AHN Rev. No. : Revision A Date :2007.11.07 Page : 1 / 10 Revision Revision A Description Preliminary Release DATE Written By Checked By 07.11.07 S.H.
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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 1 Introduction...................................................................................................................................................................................... 3 2 System Description ......................................................................................................................................................
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Title : User manual of IM900 Immobilizer Spec. No. : N/A Written by : SUNG HUN AHN Rev. No. : Revision A Date :2007.11.07 Page : 3 / 10 1 Introduction This document is user manual & description of function of immobilizer with crypto transponder based on the GM GMLAN Global Architecture immobilizer system consist of Pass Key III Plus. IM900 (hereinafter Immobilizer or ICU) is designed to meet the GM global architecture requirements.
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Title : User manual of IM900 Immobilizer Spec. No. : N/A Written by : SUNG HUN AHN Rev. No. : Revision A Date :2007.11.07 Page : 4 / 10 3 System Function 3.1 Immobilizing Function • Immobilizer at Accessory ON : Turning on the Accessory triggers the Immobilizer to read out the transponder data and to compare the red code with the valid key codes stored in the Immobilizer EEPROM.
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Title : User manual of IM900 Immobilizer Spec. No. : N/A Written by : SUNG HUN AHN Rev. No. : Revision A Date :2007.11.
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Title : User manual of IM900 Immobilizer Spec. No. : N/A Written by : SUNG HUN AHN Rev. No. : Revision A Date :2007.11.07 Page : 6 / 10 4. System Components 4.1 Accessory Key with Integrated Transponder 4.1.1 Transponder Mounting The transponder is placed invisible inside the Accessory key. A second Accessory key with integrated transponder on the bunch doesn’t affect the reading process. 4.1.2 Transponder Function The transponder is a read/write RF transponder.
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Title : User manual of IM900 Immobilizer Spec. No. : N/A Written by : SUNG HUN AHN Rev. No. : Revision A Date :2007.11.07 Page : 7 / 10 4.2 Coil Antenna 4.2.1 Coil Antenna Mounting The Coil Antenna is mounted at the Accessory lock in front of the key barrel. It is integrated to the ICU housing package with a body of the coil to improve the performance of transponder reading and EMC. 4.2.2 Coil Antenna Function The Coil Antenna and receiving coil inside the transponder built a transformer.
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Title : User manual of IM900 Immobilizer Spec. No. : N/A Written by : SUNG HUN AHN Rev. No. : Revision A Date :2007.11.07 Page : 8 / 10 4.3 Immobilizer Electronic Control Unit (ICU) 4.3.1 Tasks The function of the Immobilizer System is shared between the ICU, Gateway and ECM. The tasks of the Immobilizer Electronic Control Unit are executed. 4.3.2 Function 4.3.2.1 Normal Operation • In the sleep mode of Immobilizer the LED on the IPC or clock is turned OFF.
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Title : User manual of IM900 Immobilizer Spec. No. : N/A Written by : SUNG HUN AHN Rev. No. : Revision A Date :2007.11.07 Page : 9 / 10 Terminal No A1 A2 A3 A4 A5 Function Battery Accessory GND Serial data link (GMLAN) Serial data link (GMLAN) Type Input, Battery Power Input, Accessory Body ground Bidirectional data Bidirectional data 4.3.