2002 BMW X5 alarm

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Page 38 of 80

BMW X5 2002 E53 Central Body Electronics ZKE Manual The siren has four wires connecting it to the system; KL 30, KL 31, activate siren signal
(SIRENE) and the arm/disarm signal (STDWA).
The arm/disarm output signal from the GM is

Page 40 of 80

BMW X5 2002 E53 Central Body Electronics ZKE Manual Principle of Operation
DWA Arming/Disarming
• The DWA is armed every time the vehicle is locked from the outside with the door lock
cylinder or FZV key.
• The DWA LED flashes as an acknowle

Principle of Operation
DWA Arming/Disarming
• The DWA is armed every time the vehicle is locked from the outside with the door lock
cylinder or FZV key.
• The DWA LED flashes as an acknowledgment along with the exterior lights and a
momentary chirp from the siren.
• The GM monitors all required input signals for closed status (door closed, luggage com-
partment closed, etc.) The inputs must be in a closed status for a minimum of 3 sec-
onds for the GM to include them as an activation component. If after 3 seconds any
input signal not in the closed status is excluded (this is acknowledged by the DWA LED)
preventing false alarm activations. The hood switch can be “lifted” to the service posi-
tion to test the alarm with the hood open.
• If the DWA is armed a second time within 10 seconds, the tilt sensor and interior pro-
tection sensor are excluded as alarm activation components. This function is useful if
the vehicle is transported on a train or flat bed truck to prevent false alarm activations.
• While armed, the trunk can be opened with out the alarm being triggered as follows:
- If opened with the trunk remote button via the FZV, the GM prevents the alarm from
activating. (This feature is customizable under the Car Memory function).
- If opened with the key at the trunk lock cylinder the trunk key position switch sig-
nals the GM and in the same manner prevents the alarm from activating.
In either case, when the trunk is returned to the closed position, it is no longer con-
sidered as an activation signal.
Panic Mode Operation: When the trunk button is pressed and held, the GM is signaled
to activate the siren for the Panic Mode. The panic mode is function with either an armed
or disarmed DWA system.
Emergency Disarming: Emergency disarming occurs automatically if a key is used to turn
the ignition switch on and the EWS accepts it. The EWS signals the GM to unlock the doors
and deactivate the DWA.
40
Central Body Electronics ZKE III

Page 41 of 80

BMW X5 2002 E53 Central Body Electronics ZKE Manual Alarm Indication
When the alarm is triggered, the siren will sound for 30 seconds. At the same time the low
beam headlights (high beams on Xenon equipped vehicles) and four way flashers for 5 min-
ute

Page 76 of 80

BMW X5 2002 E53 Central Body Electronics ZKE Manual Sleep Mode
To lower the constant battery draw when the vehicle is parked, the complete ZKE system
will go into the “Sleep Mode” 16 minutes after the ignition has been switched off a

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