2006 BMW X5 Central Body Electronics Workshop Manual

REMOTE KEY INITIALIZATION
The initialization of the FZV keys is required to establish the Lock/Unlock signal
synchronization with the GM. The initialization procedure provides the GM with a key
identification number and a “rolling code” for each key. If the initialization is not performed,
the GM will not respond to the key signals.
Up to 4 remote keys can be initialized. They must be initialized at the same time. Key
initialization is only possible with the vehicle unlocked.
Procedure:
1. Close all doors and have all keys available.
2. Using key number 1, turn the ignition switch
to KL R, then switch off within 5 seconds and
remove the first key.
3. Within 30 seconds of turning the ignition
switch to “off” Press and holdthe arrow
button.
4. While holding the arrow button, press and
release(“tap”) the roundel button three
timeswithin 10 seconds.
5. Release both buttons. The GM will
immediately lock and unlock the doors
signaling a successful initialization.
6. If additional keys need to be initialized repeat
steps 3 - 5 within 30 seconds.
7. Switching the ignition to KL R completes the initialization.
SERVICE NOTE:The key memory function of the GM responds to the key identification
number of each key. If the keys are not initialized in the same order prior to initialization, the
key memory function activated by the keys will not be assigned correctly.
Always initialize the keys in the same order.
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FZV KEY RECHARGEABLE BATTERY
From KL R, the battery inside the key head is charged inductively by the EWS ring antenna
via a coil antenna integrated in the key. The charging process is controlled by electronic
circuitry integrated in the key.
• The service life of a radio-control key used under normal conditions corresponds to the
vehicle lifespan.
• If the FZV keys are not used (ie: stored in a drawer), the battery will be discharged after
approx. 1.5 years.
• The time required to fully charge a discharged battery is approx. 30 hours.
• The remote control can be operated about 15 times after a charging period of approx.
30 minutes (driving time).
The key data is stored in a transponder chip. The transponder chip is a wireless read and
write EEPROM. It is powered via the ring coil at the steering lock. Power is applied
electromagnetically when the key is in the ignition switch from KL R.
The power supply is used both for data transfer as well as for charging the battery. This has
been made possible by new development of the transponder chip.
As with previous systems, every press of an FZV key also provides the battery charge
condition. When the FZV electronics receives a low power condition message three
successive times, the GM sets a fault indicating a low battery within a specific key. The
LCM is also informed via the bus system and alerts the driver via an instrument cluster
matrix message.
If the battery is recharged (used operate car), the fault will be automatically deleted when
five successive messages are received indicating a charged battery condition.
The battery has no affect on the EWS III communication function!
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Car Memory / Key Memory
The Car/Key Memory feature provides the flexibility of allowing the owner to customize cer-
tain functions of select vehicle systems and automatically identifies users of the vehicle by
a key identification signal provided by the remote keyless entry system (FZV).
Car & Key memory is marketed as a combined feature but is actually two separate func-
tions of the select vehicle control systems.
Car Memory: The owner is provided with a list of available system functions that can be
customized to their liking. Prior to delivery, the DIS or MoDiC is used to encode the
owner’s chosen selections into the appropriate control modules.
These choices become a permanent function of the control module and can only be
changed by re-encoding with the DIS or MoDiC at a BMW Center.
This feature has been available for some time via the ZCS Conversion Feature but has never
been fully utilized or officially presented to the vehicle owner as a feature of their vehicle.
Units DisplayChange (ºF/ ºC)
• DWA - Features
• FZV - Features
• Automatic Seat
Adjustment
• Method Selection
• Recirc
Air Memory
• Daytime Running
Lights
• Home Lights
UNLEADED GASOLINE ONLY01
220km/hMPH1/min
x1000
40 6080100120
140
160
180
200
220
240
1
023
4
5
6
75030
20
15
1220 406080
100
120
1401
1
MoDiC
20 PIN
DIAGNOSTIC
CONNECTION
MoDiC
D-BUS
DIS
A
SEAT
MODULE
GMV
IHKA
LSZ

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LCM III
GM III

Key Memory: This feature provides the added convenience of identifying users of the vehi-
cle whenever a lock or unlocked signal is generated via the individual FZV keys. A maxi-
mum of four FZV keys can be used with the Key Memory feature.
Each of the four keys generate a unique key identification signal (key number) that is trans-
mitted simultaneously with the lock/unlock signals to the General Module. Key Memory
does not respond to Lock/Unlock requests from the drivers door lock.
Mostof the key memory functions require the vehicle be configured using the “KEY MEM-
ORY” function of the DIS or MoDiC. However, there are a few features that store settings
automatically without configuration such as IHKA blower speed and temp setting.
The key ID signal alerts the GM V to communicate with select control systems over the K
Bus to store (when locked) or reset (when unlocked) certain driver adjustable settings.
There are features that function as both a Car & Key Memory feature.
Example; the Automatic Seat Adjustment feature is encoded as a Car Memory Function
with the following possibilities:
• when unlocking,
• when opening a door after unlocking
• or not active at all.
If active, the seat positions are stored and reactivated by the Key Memory function for indi-
vidual users of the car.
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REQUIRED PRECONDITIONS:
Before configuring Car or Key Memory
Functions, connect a battery charger to the
vehicle. This will ensure adequate battery
voltage during the Car/Key Memory
configuration.
If battery voltage drops below 11.8 volts, the
procedure will terminate.
Car Memory Configuration procedure:
From the Coding/Programming Selection
function of the DIS or MoDiC, Select "CAR
MEMORY" and proceed by pressing the
right arrow.
The system will scan for control systems
capable of configuration based on the ZCS
in the Instrument Cluster.
After a short wait the system will display a list
of detected control systems capable of CAR
MEMORY configuration.
Using the owner's selection list, enter the
systems selected for customization.
Example:The owner chooses not to have
an acoustic acknowledgment when the
DWA is disarmed.
• From the displayed list select "Anti Theft
System" and press the continue arrow.
• From the Anti Theft Sub menu, select 4.
Acknowledge.
The Acknowledge sub menu provides all
possible options for the DWA
Acknowledgment.
• Select 2. Disarm Acoustically, and press
the continue arrow.

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The next displayed screen is the "active/not
active" selection.
The blue "=" sign indicates what mode this
particular function is set to at the present.
• Select the "not active" function and press
the continue arrow.
The system will accept the selection and
bring the CAR MEMORY main selection
menu back in the display.
If additional selections are required, enter
into the systems displayed and repeat the
steps from above.
• When all of the required CAR MEMORY
configuration selections are entered, scroll
down to the bottom of the main car
memory menu and select 99 SET
VEHICLE.
All of the selected configuration changes are
now displayed. Check the displayed list
against the Owner's selection list making
sure all of the choices are entered.
Print this list out and place in the vehicle
history file for future reference.
• Press the continue arrow to proceed with
the configuration. The display will request
that the ignition switch be "switched off
and on again". Switch off for a minimum
of 10 seconds, then switch back on.
Press the "Yes" button to continue.
A bar graph indicating configuration progress is displayed along with the current battery
voltage. This portion of the configuration varies in duration based on the total number of
configuration selections. Watch the battery voltage level during the configuration. Low
battery condition will terminate or possibly incorrectly configure the vehicle.

The display will change indicating the
“Vehicle setting completed”. Switch ignition
off for 10 seconds and then back on.
Verify the configuration change(s) by
activating the new function.
Pressing the Left arrow brings the Main
Coding/Programming Menu back in the
display.
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