BMW ONBOARD COMPUTER Bedienungsanleitung

Table of ContentsE46 DRIVER INFORMATIONSubject PageIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11E46 Driver InformationDIGITAL INPUT SIGNALSThe normal ignition switch terminals (KL R, KL 15 & KL 50) are input to the cluster. Variousfunction

OUTPUT SIGNALSSPEED SIGNAL “A” - The vehicle speed signal is available as an output for control mod-ules that require precise vehicle speed informatio

REDUNDANT DATA STORAGE Specific information is stored redundantly in the instrument cluster and in the Light SwitchModule. The data stored redundantly

14E46 Driver information

15E46 Driver InformationSIA IVModels: E46 Production: From start of productionSIA IV Components:• Instrument Cluster with LED display• DME• Vehicle Sp

16E46 Driver informationPrinciple of OperationStarting with the E46 a new method for displayingthe Service Interval is used. Colored LEDs are nolonge

17E46 Driver InformationReset procedure using the Reset Mode. (possible from 9/99 onward for E46, MY2001 E52)• Ignition key must be “off”• Press and h

18E46 Driver informationReset using Diagnosis Program • Connect the Diagnosis head to the diagnostic connector of the vehicle.• Identify the vehicle a

19E46 Driver InformationON BOARD COMPUTERThe On Board computer of the E46 contains the following functions:• Time• Outside temperature• Average fuel c

INSTRUMENT CLUSTER TEST FUNCTIONSIn addition to the fault memory and diagnostic link, the base instrument cluster contains aseries of test functions t

3E46 Driver InformationIntroductionThe driver information system is presented to the driver in two main areas, the instrumentcluster and the center co

TEST 01. - Vehicle specific data including: SubTests:12345 1.0= VIN 4812 1.1= Body number834762 6_1.2 = Part number of cluster010203 1.3= Coding/Diag

TEST 07. - Temperature and SpeedSub Tests:032 7.0= Coolant temp input 32OC245 7.1= Outside temp input 24.5OC5283 7.2= Engine speed 5,283 RPM058 7.3= V

23E46 Driver InformationTEST 19. - LOCK/UNLOCKSub-TestsL-ON...L-OFF 19.0 = Display changes from “L-ON” to “L-OFF” every second. To unlock test functi

24E46 Driver informationLIGHT SWITCH CENTER (LSZ)The Light Switch Center is a compact component that combines the electronic control,switching, and mo

COMPONENT OPERATIONThe LSZ control module receives inputs from the following switches:Headlight/parking light switch, fog light switch, potentiometer

26E46 Driver InformationE46 Convertible Third Brake lightThe E46iC uses Neon technology for the third brake light which is mounted in the trunk lid.Th

LAMP MONITORINGLamp monitoring on the E46 is a function of the LSZ control module. The following lampsare monitored in both the hot and cold states:•

HOME LIGHTINGThis convenience feature provides lighting for the driver and passengers to leave the vehi-cle and enter their house. The feature is swi

EMERGENCY (FAIL SAFE) LIGHTING The LSZ provides emergency lighting in the event of a control module failure. If the proces-sor of the LSZ control modu

30E46 Driver InformationXENON HEADLIGHTSOVERVIEWThe automotive industry/press often identify xenon lighting systems as HID (high intensitydischarge)

4E46 Driver informationE46 BUS SYSTEMSBUS SCHEMATICAExample Bus system as introduced.

31E46 Driver InformationVERSION IDENTIFICATION & SYSTEM SUMMARIESVersion identification is specific to vehicle model with the exception of the E38

32E46 Driver InformationXENON HIGH INTENSITY DISCHARGE BULBSXenon bulbs are identified as D-2S (D=Discharge).Xenon bulbs illuminate when an arc

33E46 Driver InformationXENON BULB MONITORINGXenon bulb function is monitored by the Lighting Control Module (LCM E38/E39 -- LSZE46). The

34E46 Driver InformationDIAGNOSISXenon control modules are not connected to the diagnostic link. However, the vehicle spe-cific Lighting Control Mod

35E46 Driver InformationHEADLIGHT BEAM THROW CONTROL- LWROVERVIEWLWR automatically adjusts the vertical positioning of the headlights to maintai

36E46 Driver InformationLWR COMPONENTSCONTROL ELECTRONICSLSZ - E46The E46 LWR function is integrated into the control electronics of the LSZ. The LSZ

37E46 Driver InformationFUNCTIONAL DESCRIPTIONThe E46 LWR system comes on-line when the ignition switch is turned to KL 15. The LWR control electro

MULTI-FUNCTION STEERING WHEELThe multi-function steering wheel of the E46 corresponds to the MFL introduced on the E38and carried over to the E39. The

E46iC BUS SYSTEMThe Bus system of the E46iC continues to use the K-Bus as the main communication linkbetween body and driver information modules. The

SIGNALS WHICH ARRIVE AT THE INSTRUMENTCLUSTER VIA THE K-BUSSIGNALS WHICH ARRIVE AT THE INSTRUMENTCLUSTER THROUGH THE CAN-BUS6E46 Driver info

7E46 Driver InformationINSTRUMENT CLUSTERThe instrument cluster uses analog gauges for display of engine and road speed, enginetemperature, fuel level

8E46 Driver informationCHECK CONTROL LCD MATRIX DISPLAYThe pictogram check control display carries over from the E39 for failure display warningsof va

9E46 Driver InformationDYNAMIC DIGITAL INPUTSDISTANCE SIGNAL- This input is supplied to the cluster by the ABS/ASC+T control mod-ule as a square wave

10E46 Driver informationANALOG INPUT SIGNALSBATTERY VOLTAGE - Battery voltage is monitored by the cluster and a fault is stored ifthe voltage exceeds