IMMOBILIZER 12. IMMOBILIZER SYSTEM DESCRIPTION Immobilizer system is design to prevent vehicle theft by electronically disabling the engine starting system. The engine can be start only with vehicle’s original immobilizer ignition key, which has an electronic identification programmed code. The electronic key communicates the identification code to LIN based BCM Immobilizerwhen the key is turn to the “Ignition ON” position. Immobilizer comes with two Electronic keys (E-key), (maximum 6 E-keys are possible). The immobilizer used is base on LIN system. ABBREVATIONS: SCL - Steering Column Lock VCU - Vehicle control unit DTC - Diagnostic Trouble Code AES - Advanced encryption standard E-Key - Electronic Key W/H - Wiring Harness SPD - Spare Part Division SPECIFICATIONS Operating temperature range: -40C to +85C. • Operating voltage range: +6.5 VDC to +16 VDC • (governed by internal_12V output of BCM) Storage temperature range: -40C to +90C. • Operating current: <100mA @13.5V & room • temperature Operating frequency: 125KHz+-5 % at room • temperature Coupling factor: >2% typical • Sleep mode current: <100uA @13.5V & room • temperature Homologation standards: AIS 076 & AIS 004 • part3 Compatible transponder specification HITAG 2 • PCF7936AS Compatible BCM: Hella BCM with Immo SW • Features: • Diagnostic pairing • Automatic pairing • Transponder Authentication • LF antenna Diagnostic” • CAUTION As LIN communication protocol doesn’t work beyond 18V, vehicle will not start under “Jump Start with voltage > 18 V” conditions. LOW VOLTAGE ELECTRICAL SYSTEM (LV) 163
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