Alarm Siren - Triggers False Alarm
GROUP 65Sound Systems, Cruise, Alarms, Monitors
Bulletin Number
65 07 97
Woodcliff Lake, NJ
October 1997
Product Engineering
SUBJECT:
Alarm Siren Triggers False Alarm
MODEL:
5 Series (E39), 7 Series (E38)
Situation:
The alarm siren sounds when unlocking vehicle, but the hazard warning system is not activated. (The "Alarm Counter" has no entry).
Cause:
Internal siren fault, low battery, or wrong siren fitted
Affected Vehicles:
5 Series (E39) from start of production, 7 Series (E38) from 9/95.
Procedure:
In case of a customer complaint, use the DIS tester to confirm that the alarm counter (found under "Service Functions") has not been set.
Check power and ground supply
Check the state of charge of the vehicle battery (Note: Siren battery is charged vehicle battery). If the vehicle battery is low, recharge the vehicle battery.
If the condition is not rectified, replace the siren.
Parts Information:
Note:
The EPC lists an incorrect part number for E39 siren at the time this SIB was prepared.
Warranty Information:
Covered under the terms of the BMW New Car Limited Warranty.