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//-->Table of ContentsE46 CENTRAL BODY ELECTRONICSSubjectPageZKE V Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Windshield Wiping/Washing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Sport Wagon Rear Wiper/Wash System. . . . . . . . . . . . . . . . . . . . . . . . . . . 9AIC (Rain Sensor). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Central Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16E46 Convertible Central Locking. . . . . . . . . . . . . . . . . . . . . . . . . . . . ..18E46 Sport Wagon Central Locking. . . . . . . . . . . . . . . . . . . . . . . . . . . .19Remote RF Key less Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Model Year 2000 Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30Power Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34Convertible. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40Interior Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43Anti-Theft (DWA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46Power Seat Control and Memory Function . . . . . . . . . . . . . . . . . . . . . . . 54E46 Convertible Front Seats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60Passenger Seat Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65Mirror Memory System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68Seat Heating (up to 9/99). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70SZM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72Lumbar Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75Dual Power/Heated Outside Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76Consumer Cutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77Review Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79Initial Print Date: 7/98Revision Date: 11/22/00E46 CENTRAL BODY ELECTRONICSModel: E46 (all models)Production: From 6/98ObjectivesAfter completing this module you should be able to:•••••••••Explain what functions are controlled by the GM V.Describe the operation of the windshield wipers and the interaction with AIC.Understand the different methods of locking and unlocking the vehicle.Identify the internal components of the model year 2000 key and describe it’s operation.Describe the window anti-trap circuit used on various E46 models.Explain the operation of DWA.Describe the purpose and operation of the UIS sensor.Understand how seat and mirror memory systems operate.Explain the construction of the E46 Convertible seat and the SGS system.2E46 Central Body ElectronicsZKE V INTRODUCTIONZKE Vis the Central Body Electronics system installed in the E46. Many of it’s featuresand functions are similar to previous BMW ZKE systems with minor changes, addedfeatures, and refinements.The following functionsare directlycontrolled by the General Module V (GM V):••••Windshield wiping/washingCentral locking with power trunk/tailgatereleaseFZV Key less EntryPower window control••••Car Memory/Key Memory CapabilitiesInterior lightingDWA alarm system (optional)Consumer cut-off/sleep modeThe following functions are included as body electrical systems but arenot directlycontrolled by the GM V:• AIC (Rain Sensor) if equipped.• Sunroof operation (Sunroof Control module on K Bus).• Driver’s seat electrical adjustment with memory (Seat Memory control module on K Bus)• Passenger seat electrical adjustment• Comfort Entry Aid (Convertible only)• Seat Heating• Side Mirrors - Memory/adjustment/heatingZKE V includes the following features:•Similar to the E36 GM IV, the E46 GM V controls it’s respective peripheral componentsdirectly (no P Bus). It does however communicate with other pertinent control modulesvia the K-bus.The Central Locking system uses a door lock actuator with hall effect sensors.The GM V is responsible for the Key Memory feature. It provides the addedconvenience of identifying users of the vehicle. Whenever the vehicle is locked orunlocked via the FZV key less entry system, a unique key identification signal (keynumber) is transmitted to the General Module.The key identification signal alerts the GM V to communicate with other control systemsover the K Bus to store (when locked) or reset (when unlocked) certain driver adjustablesettings for the driver using the specific key. The GM also resets certain driveradjustable settings that it controls directly.••3E46 Central Body ElectronicsThe E46 Body Electronics system control modules are:•General Module V:main controller for ZKE functions. The GM V communicates withother vehicle control modules via the K bus.Seat Memory Module - SM:Located in the driver’s seat base, the SM controls andmemorizes the driver’s seat position(s). The SM communicates with the GM V via theK bus.Sunroof Module - SHD:Located above the rear view mirror, the sunroof modulecontrols it’s integral sunroof motor as on previous systems. The SHD communicateswith the GM V via the K bus.••4E46 Central Body ElectronicsPOWER DISTRIBUTIONThe maintenance free battery is connected to the power distribution system by the BatterySafety Terminal (BST). The BST is activated by the MRS system in the event of a severeimpact preventing the main B+ cable to the starter and generator from shorting to ground.Trunk Mounted200 Amp FuseBATTERY SAFETY TERMINAL (BST)250A single 250 amp mainharness fuse (F108)located in the trunkprotects the powerdistribution circuit tothe fuse panel in theglove box.CIRCUITTO FUSEBOXBATTERYSAFETYTERMINALSTARTER/GENERATORCIRCUIT5E46 Central Body Electronics [ Pobierz całość w formacie PDF ]

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