ELECTRICAL 170 8.13 IMMOBILIZER SYSTEM 1. DESCRIPTION: Immobilizer system is designed to prevent vehicle theft by electronically disabling the engine starting system. The engine can be started only with vehicle’s original immobilizer ignition key, which has an electronic identification programmed code. Immobilizer unit (ICU) is an add-on part on the ignition switch, fitted on the steering column. The engine can be started only with the vehicle’s original immobilizer ignition key. The electronic key communicates the identification code to ICU when the key is turned to the "Ignition ON" position. Immobilizer comes with two Electronic keys (E-key). ! CAUTION As CAN communication protocol doesn’t work beyond 18V, vehicle will not start under “Jump Start with voltage > 18 V” conditions. ABBRIVATIONS: SCL - Steering Column Lock ICU - Immobilizer control unit EMS - Engine management system ECU - Electronic control unit DTC - Diagnostic Trouble Code AES - Advanced encryption standard E-Key - Electronic Key (With transponder) W/H - Wiring Harness ASK - Amplitude Shift Keying BCM - Body Controller Motor CAN - Controller Area Network GND - Ground K Line - Bi-directional serial data line diagnostic 2. BASIC SPECIFICATIONS: 1. Operating voltage range : 8 V to 16 Vdc 2. Operating temperature range : -40°C to +85°C 3. Storage Temperature range : -40°C to +85°C 4. Standby current : 0.6 mA typical. @13.5 Vdc 5. Vehicle mounting location : Steering column along with ignition switch 6. Diagnostics : KWP2000 protocol over k-line 7. Unlock Mechanism : CAN 2.0B based
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