Honda Bmw 5 Service Manual
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Central Locking and Anti-Theft Trunk lock 6 Tr~nk ftey pos~rions for eecircal mama, locking and -nlock~ng are: 1. Manual unock .. - - - ........ - ..- .- ................. s.=.=-- 2. Unlock. DWA oisarmed, conven:ence open (nold un1:l aclivaledj 3. Ne~tral positon 1. -ocn. DWA armeo, Convenience closng (hold ~nti activated) 5. Valet .oc,t position . -- .............-... .- . - -..... Key memory < The remote trunk button (arrow) is located in the lefl lticlc panel. - The trunk can be opened from this remote release when the doors are locked from the central locking button. The trunk remote button is disabled when the trunkis loclted in the valet position or when a speed signal of 4 mph is present at the GM. Remote entry (FZV) < The €39 remote (keyless) entry system (FZV) uses a tiny ra- dio transmitter in the vehicle key to lock and unlock the doors and the trunk by remote control. There are a number of other features incorporated in FZV: Locltinglunloclting of fuel filler lid Selective unlocking of drivers door (as with key in lock) Armingldisarming of DWA alarm system Remote unlocking of trunk lid or tailgate Comfort opening of windows and sunroof * Interior lighting activation Panic mode alarm activation * Models to 1999: Key incorporates LED. LED informs oper- ator that an FZV signal is being transmitted. LED is also useful indicator of key initialization status and lkey self-test. Keys delivered with four different colored labels. This is helpful to differentiate FZV keys during initialization, pre. venting possibility of misassigning key ID which would change coded Key Memory functions.
515-8 /Central Locking and Anti-Theft The General Module (GM) is connected to the FZV receiver module (in left rear roof pillar) via K-Bus. Locking and unlock- ing of doors, trunk or tailgate and convenience closing is car- ried out by the GM subsystem controlling the door lock, window and sunroof modules. The accompanying schematic, Remote entry (FZV) inputs and outputs, illustrates the GM remote entry subsystem. Remote entry (FZV) inputs and outputs Inputs Outputs
515-9 Central Locking and ~nti-~heftl FZV keys 4 FZV key button functions: Bunon 1 press once: Unlock drivers door DWA disarmed / lnterior lights on ... - 0021~0~~j Convenience opening 2000 - .-,- /- ..,. Button 2 press once: Button 1 press twice: a Total unlocking Button 1 hold: * Lock - DWA armed lnterior lights ON when vehicle is locked Button 2 press twice within 10 seconds: Deactivate interior and tilt monitoring Button 3 press momentarily: Trunk lid opens Button 3 press and hold: Panic mode (alarm) LED (4) provides feedback of system operation and battery condition. LED is eliminated from 2000 and later lkeys. LED flashes indicate the following: One flash indicates that FZV lock I unlock signal was sent and batteries are OK. Quick flashing LED indicates that convenience opening signal is being sent. Slow flashing LED indicates that initialization procedure was successful. A steady-on LED [after a self test as described in Trans- mitter self-test (models to 1999)l indicates that hard- warelsoftware of transminer are OK. No LED activity could indicate discharged batteries or de- fective transmitter.
1 Central Locking and Anti-Theft
NOJE-
A single unlock request from the drivers door with the FZV
key unlocks the drivers door only.
A second unlock request
unlocls the remaining doors and trunk. This feature can be
modified for individual users with the Key Memory capabil-
ities to activate all lock actuators simultaneously See Car
Memory
/ Key Memory later in this section.
Starting with 2000 models, the battery in the FZV ignition
Icey is recharged by the ignition switch ring antenna while
the ley is in the ignition switch.
Transmitter self-test (models to
1999)
Press buttons 1 and 2 at the same time. This starts ltey trans-
/ mitter self-test. Transmitter is OK when LED glows steadily
te{leel for that particular key and illuminate an instrument
cluster message.
-- 502515092 J
NO JE-
If batteries are replaced within one minute of removal, it is
not necessary to
periorm initialization.
Tlie state of charge of key batteries has no effect on elec-
tronic immobilizer (EWS) function.
2
Remote key initialization
for one second. If LED fails to illuminate, try replacing ltey~
batteries.
The state of charge of key transmitter batteries is monitored
by the
GM. Once the voltage level of the transmitter drops be-
low
4.5volts, the LED no longersignals transmitteroperation.
Convenience opening, initialization and self-testing are no
lonaer ~ossible. The GM will store a fault indicatina low bat-
NOJE-
In the accompanying illustration, the key is from a 1998 mod-
el. 2000 and later models are equipped with a different look-
ing
/
515-11 Central Lockinq and ~nti-l heft/ 4 The initialization procedure is as follows: Close ail doors and have all keys available 2 LED Using lkey number I, turn ignition switch to KL R (ACCES- SORY), then switch off within 5 seconds and remove first key. . - -- , ..-.---- - Within 30 seconds of turning ignition switch to OFF, press and hold button 2. 1 While holding button 2, press and release (tap) button 1 three times within 10 seconds. Models to 1999: LED flash- - If acknowledgement signal (doors lock / unlocking) does not follow initialization procedure, repeat process. If ignition is switched on during process, procedure is cancelled. 50251509‘1 NOTE- The Key Memory function of the GM responds to the ley identification number of each key If the keys are not initial- ized in the same orderprior to initialization, the ley memory functions activated by the l(eys will not be assigned correctly. Always initialize the keys in the same order. es momentarily. Release both buttons. GM immediately locks and unlocits doors to signal successful initialization. Remote system coding * Initialize remaining lteys, repeating steps above. The E39 remote entry system uses coded signals for security purposes. The code signal sent by the transmitter is changed every time the vehicle is lockedlunlocked with the transmitter. A separate code signal is used for each transmitter that is ini- tialized to the system. This allows for each transmitterto oper- ate independently of the others. Due to the changing of the code each time the buttons are de- pressed, the system allows for a lacit of synchronization be- tween the transmitter and receiver. This would occur if the buttons on the transmitter are pressed inadvertently. Up to 100 erroneous actuations of the transmitter are auto- matically corrected forby the control module. If more than 100 actuations are present, the operator need only to press the button a second time to restore system operation.
51 5-12 I Central Locking and Anti-Theft Key battery 9 4 1997 - 1999 models: Two lithium batteries are used to sup- ply power to key transmitter. When replacement is neces- sary, remove cover and two fasteners (arrows) from rear of key to access batteries NOTE- If you replace the batteries within one minute, the FZV ley will not require a new initialization procedure. 2000 and later models: FZV key battery is recharged by ring antenna while ltey is in ignition switch. There is no need to re- place ltey battery. Car Memory 1 Key Memory A number of features and functions can be customized to the driver(s) preference. The identity of the vehicle user is provid- ed by a s~gnal from the keyless entry system (FZV). Car Memory and Key Memory are actually two separate func- tions, although they are marketed as a combined feature. Car Memory Pror ro new veh c,e de very, the BMW scan roo (DISp us, GTI or MOD C) is ~sed lo cooc ine driver preierences nro ine appropriate control modules. Thereafter these choices can- not be changed without recoding with a BMW scan tool. The functions that can be set using Car Memory include: Alarm system (DWA) features such as armingldisarming with lkeyless entry (FZV), activation of tilt sensor or interior sensor lnterior light activation when central locking is used Convenience opening of windows/sunroof lnterior and external lighting preferences Heating I A/C preferences (IHKA) Seat and mirror preferences (triggered by Key Memory) Instrument cluster display units (for example: km vs. miles)
- - Central Locking and ~nti-~hefil Key Memory Whenever one of the FZV keys is used to lock or unlock the car, the user is identified by the GM. A maximum of four keys can be programmed with the Key Memoryfeature. The use of the personalized key then triggers Car Memory functions such as heating I AIC (IHKA) settings or memory seat position adjustment. Most programming of Key Memory requires the use of BMW scan tools (DISplus, GT1 or MoDiC). However, features such as IHKA blower speed and temperature store automatically without the use of scan tools. Available Key Memory functions vary based on vehicle equip- ment. The functions that can be set include: Automatic locking after start off (vehicle speed) Selective locking Heating 1 AJC blower speed, heated or cooled air distribu- tion, automatic blower setting Trunk lid soft close (SCA) < The optional sofl close trunk feature is called SCA. The SCA actuator is located in the panel below the trunk lid. 1. SCA motor and actuator located behind trunk trim in rear wall of trunlc 2. Lower edge of trunlc seal 3. Cam in open position 4. Cam in closed position The actuator is controlled by a load relay in the General Mod- ule (GM). The closing cam is mounted on an eccentric that is driven by the actuator. The cam always turns 180 in the same direction to open or close the trunk.
SCA subsystem 1. Battery power (term. 30) 2. Battery power (term. 30) 3. SCA actuator 4. Ground (term. 31) 5. Feedback OPEN 6. Ground (term. 31) 7. General Module (GM) 8. Trunk contact switch 9. Trunk opening switch 502515990 SCA operation Three microswitches are used to operate trunk latching sys- tem. Microswitch mounted on lock cylinder. Pushing lock cylin- der in will signal GM to activate actuator and open trunk. Q Microswitch in actuator signals GM when trunlc has re- leased. Actuator shuts off. When closing trunk, third microswitch (on trunk latch) sig- nals GM to activate actuator. Cam turns to pull lid closed. Foroverload protection, ON duration of actuator is limited to a max. 5 seconds. Emergency opening of trunk is provided by a mechanical link from the lockcylinder. If the trunlc has been opened by the emergency release, it can be reclosed as a conventional lid with normal pressure. Tailgate and rear window locks The Sport Wagon tailgate can be opened from: 0 Remote lkey (FZV) Interior tailgate release button at drivers lkick panel Unlock microswitch above rear license plate
51 5-1 5 Central Locking and Anti-Theft Any of these input requests to the GM activates the tailgate latch motor. The GM will also switch on the interior lights with a tailgate unlock request. The rearwindow is opened with the release switch on the rear wiper arm cover. Pressing the switch signals the GM to acti- vate the rear window release relay. Sport Wagon tailgate and rear window lock schematic Inputs Outputs UiRWiNOOW ACTUATOR RELAY RUiRWINDOW ACTUlimR A L WIPERS
51 5-1 6 Central Locking and Anti-Theft DOOR HANDLES AND LOCKS In the procedures that follow, door handle removal, door lock cylinder removal and door latch removal are covered for the left front door. Other doors are similar although simpler, due to the lack of lock cylinder. Inside door release removal is covered in the procedure for inner door ane el removal. See 411 Doors. Door handle (outer), removing and installing NOTE- IfBMWspecial tools 51 3201 and51 3 203 are available, the door handle can be removed without removing the door trim panel or door airbag. Use the access hole behind the rubber sealing plug on the door edge. - Close window on front door. - Disconnect battery negative (-) cable. CAUTlOG Prior to disconnecting the batter)! read the battery discon- nection cautions given in 001 General Warnings and Cau- tions. Remove front door trim panel. See 411 Doors. Remove door-mounted air bag. See 721 Airbag System (SRS). Remove rubber sealing plug (arrow) from door edge NOTE- In the photo below, door handle and lock cylinder carrier are shown on the work bench for clarity. Working inside door cavity: - Use long thin screwdriver to release locking tab A. Push screwdriver through hole for rubber sealing plug. Slide locking plate B toward front of door. Working on outside of door, lift out lower edge of handle and pull down to remove. Installation is reverse of removal, Tightening torques Airbag to door (replace screws) 8.5 Nrn (75 in-lb)