Continental Automotive NISSAN-U5A Immobilizer System Type Nissan U5A User Manual func step6 nissan u5a

Continental Automotive GmbH Immobilizer System Type Nissan U5A func step6 nissan u5a

User Manual

SIEMENS VDO Automotive AG AT BE AS AIS LFS:\postzula\Nissan\sec-e\func_step6_nissan_u5a FCC ID:KR5Nissan_U5A Page 1 of 4User Manual / Functional Descriptionof theSiemensImmobiliser system type Nissan U5AFCC ID: KR5Nissan_U5A
SIEMENS VDO Automotive AG AT BE AS AIS LFS:\postzula\Nissan\sec-e\func_step6_nissan_u5a FCC ID:KR5Nissan_U5A Page 2 of 4Description of the Siemens immobiliser system type Nissan U5AThis equipment is a vehicle anti-theft device to prevent from the unauthorized use ofa motor vehicle. The equipment allows the ignition system to be disabled when theignition system is manipulated without using the proper key, such as by directconnection of power supplying lines or breakdown of the key-cylinder. The system isa radio frequency apparatus comprising of a transponder integrally incorporatedwithin the ignition key, a radio frequency module (RFM) with an antenna installed onthe key-cylinder case and a controller (BCM) controlling the operation of the RFmodule. Whenever the ignition key is inserted the key-cylinder and turned to the “ON”position, the RFM continues to generate a radio frequency carrier operating onfrequency 125kHz powered by the BCM, and bi-directional transmission in halfduplex mode between the BCM and the transponder occurs. The transponderrequires no internal power supply; it derives its power from the magnetic componentof the radio frequency carrier. Data is stored in the transponder and the BCM in itsnon-volatile memory (EEPROM). Data is transmitted via radio frequency link by ASK-modulating this carrier. Absorption modulation is used to transmit data from thetransponder to the BCM. The transponder absorbs the magnetic field which hencemodulates the current in the antenna of the RFM. Upon receiving the start command from the BCM, the energized transpondertransmits its identifier to the BCM. The BCM sends its own password together with aset of random numbers to the transponder in return. If the received passwordmatches the password stored in the transponder, the transponder reprogrammed thedata using its own password and the set of random numbers received in accordancewith the pre-determined protocol, data with the pre-calculated data using thetransponder’s password stored in the BCM and same random numbers in turn,whereupon the matching being verified as s result of the comparison. After thecomparison the BCM sends the result of the comparison to the engine controlmodule. When coincidence has been verified, the engine control module enables theengine to be activated, but when the result is negative it will not allow the engine tobe activated. Whenever the ignition switch is turned from the ON position to the OFF positionduring processing, the system is shifted to ignition OFF mode. The BCM causes theindication lamp on the dashboard to flash when the ignition switch is in the OFFposition or a malfunction of the system occurs. The engine control module sends arolling code to the BCM every time the ignition switch is turned from the OFF positionto the ON position in order to watch for an unauthorized replacement or amanipulation of the controller.System components:Type designation funktion manufacturer284B2 C9911 Body controller module Calsonic Kansei28590 C9965 Radio frequency module Siemens VDOFCC ID: KR5Nissan_U5A
SIEMENS VDO Automotive AG AT BE AS AIS LFS:\postzula\Nissan\sec-e\func_step6_nissan_u5a FCC ID:KR5Nissan_U5A Page 3 of 4Technical Data:Carrier frequency: 125 kHz ± 1,5%Output power/field strength: < 42 dBµA/m @ 10 metresType of modulation: AM (Amplitude Modulation)Method of frequency generation: SAWNumber of channels: 1Power supply: 12,8 V DCType of battery: vehicle batteryTransmission range: 5 centimeterDuty Cycle acc. to EN 300 330:5 actuations of immobilizer within 24 hours with a typical transmission time of0,6 secondsTransmission time TON 3seconds / 24 hoursOff time T OFF 86.397 seconds / 24 hoursDuty Cycle: TON / T (ON+OFF) x 100% = 3 / 86.400 x 100 % = 0,003 %Label design:Body controller module:284B2 C9911FCC ID:KR5Nissan_U5ACAN: 267 xxx xxxxThis device complies with part 15 of theFCC Rules. Operation is subject to thefollowing two conditions: (1) This devicemay not cause harmful interference, and(2) this device must accept interferencereceived, including interference that maycause undesired operation.Radio frequency module:FCC ID: KR5Nissan_U5A
SIEMENS VDO Automotive AG AT BE AS AIS LFS:\postzula\Nissan\sec-e\func_step6_nissan_u5a FCC ID:KR5Nissan_U5A Page 4 of 4Block Diagram10.7MHzFSKPLL DemodLOOPFILTERVCO1/2IFFilterTuner CircuitDetector ICBuilt-in AntennaPowerSourceEEPROMInput InterfaceOutput InterfaceCPUInput/OutputInterfaceTuner PowerSourceCAN BUSBATGNDIGN SWACC SWKey-in SWDoor SW(DR,ASST,Rear)Key Cylinder(Lock,Unlock)Trank SWTrank Key SWDoor Lock SWDoor Unlock SWAuto-light SensorRear Defogger SWInterior Trank SWCombination SW Input X5Hazerd SWFan ON SWComp. ON SWIVCS Door unlock inputImmobilizer controlRoom lampKey ring lampStep lampBattery saverFlasher(RH,LH)Security indicatorDoor unlock(DR,other)Door lock(all)Trank openCombination SW output X5Power Window Power SupllyIVCS Alarm output128/64 ƒ³DET CRYSTALOSCComparatorLNA LIMITER ASK SLICERRFAmpSAWfilterCAN HCAN L304.3MHzPower Window SytemCONSULTImmobilizer signalPower Sourcefor Immobilizer Immobilizer powerThis part is not inculuded test sumple.Only for IMMOBILIZER tset.FCC ID: KR5Nissan_U5A

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