Signal BMW 528i 1998 E39 Repair Manual

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41 0-3
Fenders, Engine ~oodl
Carefully pry front turn signal assembly from fender and dis-
connect electrical harness (arrow).
< Release headlight trim panel locking clip with a screwdrivel
(arrow).
* Working at corner of side trim panel, pull trim panel out
from side of fender to remove.
- Remove front bumper. See 510 Exterior Trim, Bumpers.
Working at rear of
teners (arrows). fender
well, , remove
fender
'mounting fas-
< Remove lower
housing. 'attaching
bolts
(arrow) at rear of wheel

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51 2-3
Door Windows
Window switches
4 The push type window switch provides the GM Ill with a cod-
ed ground signal. Holding a switch at the first detent provides
a single ground signal on one wire requesting the GM
Ill to
open the window. When released, the ground signal is re-
moved and the window motor stops.
- Momentarily pushing the switch to the second detent and re-
leasing provides an additional ground signal on the second
wire requesting "one touch mode". The GM
Ill lowers the win-
dow automatically until it reaches the end position. Each win-
dow has four positions, two each for the standard mode of
operation and two for the one-touch mode. All window oper-
ation signals are digital inputs to the door modules and GM
111.
- The switch functions in the same manner for window closing
but the ground signal sequence is reversed.
4 Window switch positions.
1. Off
2. Open
3. One touch open
4. Close
5. One touch close
Rear window child lockout switch
4 The rear window child lockout switch (arrow) is incorporated
in the driver's window switch block in
leit front door arm rest.
When activated, it provides a constant ground signal to the
GM
Ill, preventing the windows from being operated from the
rear door switches.
- The lockout switch ground signal is overridden by the GM Ill
if a passive safety system (MRS) crash signal is received.

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51 2-4
I Door Windows
/ Anti-trap strip
Power window motors
The window motors are mounted on cable regulators. The
window motor control circuit consists of two wires for operat-
ing the motor in both directions.
The motors are activated by relays in the GM
Ill. The relays
provide either power or ground depending on the direction of
window travel. The GM
Ill controls the polarity based on a re-
quest to run the window from a window switch or a conve-
nience
openinglclosing signal.
Convenience openinglclosing
The GM Iii provides the convenience openlclose feature, pro-
viding control of the power windows (and sunroof) from out-
side the vehicle with the key in the driver's door lock. The FZV
(remote key) provides the same function for window opening
only.
Anti-trap protection is active during convenience closing from
the driver's door lock.
If the GM receives a request to operate convenience closing
or opening for more than
110 seconds, the function is deacti-
vated and a
fault code is stored.
Window anti-trap protection
4 A rubber pressure guard is located at the top edge of each
door frame. It consists of two contact strips that close when
subjected to pressure. When the contact strip closes (for ex-
ample, a hand is trapped between the top of the window and
the door frame), an anti-trap signal is sent to the GM
Ill. The
window immediately (within
10 milliseconds) reverses direc-
tion. This feature does not require
initialization.
The E39 pressure sensor finger guard has a resistance of 3
Kw and it is monitored for open circuits. When pressed, the
monitored resistance changes to
< 1 Kw. if anti-trap protection
becomes faulty the one touch window closing will not func-
tion.
Window anti-trap protection is
only active in the one touch
and convenience close modes of operation. If the window
switch is pulled and held, anti-trap protection will not function.
The anti-trap contact strip has a resistance of
1.2 K Ohm and
it is monitored for open circuits. Faults with the anti-trap sys-
tem will cancel the one touch feature requiring the window
switch be held to close the window.

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51 5-4
I Central Locking and Anti-Theft
Driver's door lock
The
lock/unlock signals are sent as input to the door module
from two microswitches on the lockcylinder. The driver's door
module carries out the locking
/ unlocking functions of the
driver's door through its final stage control.
The signal to lock the remaining doors, trunk or tailgate and
fuel flap is sent over the P-Bus to the GM and the passenger
door module. Activation of the passengers door
loclt is carried
out by the passenger door module. The rear doors, trunlt or
tailgate and fuel flap are
locked by the f~nal stage in the GM.
When
locked from the outside, all doors are set to the double
lock position and the GM will not carry out any unlock com-
mands from the central
loclc button or remote trunk release
button.
Selective unlocking
When unlocking with the key or the remote transmitter, the
first unloclcrequestwill only unlock the driver'sdoor. A second
unlock request will unlock the remaining doors, trunk or tail-
gate and fuel flap.
Trunk locking
I
The vehicle can be locked/unlocked from the trunlc loclc cylin-
der. The GM locks the trunk or tailgate, rear doors and fuel fill-
er. The locking command is passed over the P-Bus to the
respective door modules to lock the driver's and passengers
doors.
Locking the trunk and removing the key in the
hor~zontal posi-
tion will set the valet lock and prevent opening of the trunlt
with the central locking system.
Central locking switch
-
< The central locking master control switch (arrow) is located
in the center console behind the shifter.
The central locking button will only single
loclt the doors
and trunk. The filler flap remains unloclted for refueling pur-
poses.
If a door is opened from inside while centrally locked, the
remaining doors remain locked.
The open door can be relocked, when closed, by manually
locking or pressing the central locking button twice. This
synchronizes the door
locks.

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Central Locking and Anti-Theft
DWA alarm
The DWA alarm system is
armedldisarmed when thevehicle
is locked / unlocked from either the door or trunk.
Convenience closing
I opening
The windows and sun roof can be closed or opened by hold-
ing the key in the
loclc I unlock position.
Crash sensor
The crash sensor is located in the left front
kick panel. It func-
tions by unlocking all doors in the event of an accident.
NOTE-
Continuous and repeated locliing / unlocking may cause
timedarrest of
the locliing system. When activated, the timed
arrest lasts for two minutes. The timed arrest does not affect
the crash sensor
unlocliing the doors in case of an accident.
Door locks
The driver's door lock location is the only point outside of the
vehicle where the ltey can mechanically control all of the cen-
tral locking system functions.
4 Door key positions for electrical / manual loclting and
unlocking are:
1. Manual unlock
2. Unlock, DWA disarmed, convenience open
(hold until activated)
3. Neutral position
4. Lock, DWA armed, convenience closing
(hold until activated)
5. Manual lock
The door lock actuators are sealed. self contained units with
no replaceable parts. The
actuators use Hall effect sensors in
place of pin contacts and microswitches to provide DOOR
OPEN
I DOOR CLOSED status signal. Each door lock button
only affects the actuator it controls. There is no effect on the
other doors.
An automatic locking feature activates door locks when a
road speed signal of 4 mph is detected via the K-Bus. The fac-
tory default coding for this feature is OFF, but can be coded
ON for individual users with the Key Memoryfunction. See
Car Memory
1 Key Memory later in this section.

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Central Locking and Anti-Theft
Trunk lock
6 Tr~nk ftey pos~rions for eecir'cal mama, locking and
-nlock~ng are:
1. Manual unock .. - - - ........ - ..- .- ................. s.=.=-- 2. Unlock. DWA oisarmed, conven:ence open
(nold
un1:l aclivaledj
3. Ne~tral posit'on
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 driver's 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.

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515-9
Central Locking and ~nti-~heftl
FZV keys
4 FZV key button functions:
Bunon 1 press once:
Unlock driver's 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.

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1 Central Locking and Anti-Theft
NOJE-
A single unlock request from the driver's door with the FZV
key unlocks the driver's 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{le"el 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
/ - Up to four keys can be coded to operate the same system
Initialize all key transmitters at the same time.

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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.

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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 driver's lkick panel
Unlock microswitch above rear license plate