Question about 2008 BMW 528i Sedan

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Factory alarm on 1998 528i bmw

ALARM ARMS FINE AND DOES NOT TRIP ...BUT WHEN I DISARM IT TAKES ABOUT 10 SECONDS THEN ALARM SOUNDS. I AM UNABLE TO STOP...IT SOUNDS FOR A GOOD 30 SECONDS THEN TURNS OFF......ANY ANSWERS

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Batterys in the remote??

Posted on May 16, 2009

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1 Answer

How to ARM and Disarm a self contained ALARM system


An alarm that only sounds for a couple or three minutes, easily defeatable by way of crowbar on plastic? come on.

Nov 30, 2014 | Cars & Trucks

2 Answers

Don't know what the picture on the dashboard is for? Looks like a radiator, but not sure. Misplaced car manual


the alarm automatically arms 30 seconds after you lock the doors
i looked around online and found info for you

The FACTORY ALARM DISARM WIRE IS
lt. green/orange '-'conn. 2, pin 9 @ the BCM.

The factory alarm disarm wire is
negative trigger thru a 473 ohm resistor.
MUST use relay. The BCM
(Body Control Module) is attached to
the left of the fusebox.
Connector 1 is a gray 26 pin plug,
and connector 2 is a gray 22 pin plug.

Once Located, splice into this wire with
a simular guage wire, add the specified resistor
and put it to a solid chassis ground.
This terminates the alarm functions entirely.

However, at this point, this car would be exceedingly
easy to steel, so I suggest you get an aftermarket
alarm system to protect it from here on in.

Take this info to your local
stereo/car alarm guy and have them
do this for you.

Sep 16, 2011 | 2005 Jeep Liberty

1 Answer

2006 jeep liberty. In the middle of the night the jeep would make a honking noise with short honks. We never had the alarm set. What would cause this and how would you turn the alarm system off.


the alarm automatically arms 30 seconds after you lock the doors
i looked around online and found info for you

The FACTORY ALARM DISARM WIRE IS
lt. green/orange '-'conn. 2, pin 9 @ the BCM.

The factory alarm disarm wire is
negative trigger thru a 473 ohm resistor.
MUST use relay. The BCM
(Body Control Module) is attached to
the left of the fusebox.
Connector 1 is a gray 26 pin plug,
and connector 2 is a gray 22 pin plug.

Once Located, splice into this wire with
a simular guage wire, add the specified resistor
and put it to a solid chassis ground.
This terminates the alarm functions entirely.

However, at this point, this car would be exceedingly
easy to steel, so I suggest you get an aftermarket
alarm system to protect it from here on in.

Take this info to your local
stereo/car alarm guy and have them
do this for you.

Sep 16, 2011 | 2006 Jeep Liberty

1 Answer

My BMW E30 1992 does not want to start. It sounds as if the anti theft code does bot want to disarm once one has put in the right code. So disconnected battery and waited fro 24hours reconnect battery...


Here is information on disarming the alarm! First you need to know if it is a factor or after market system! Here is how you tell if the headlights are flashing, the alarm system is factory installed. Inserting the key into the driver door lock and turning to the left then back to the right is supposed to disarm it. If the parking lights are blinking,, the alarm is an aftermarket add on, and there should be a disarm button under the dash on the driver side. If it' an aftermarket alarm, you should be able to have it removed. There is a way to bypass the factory alarm. There is a wiring harness in the driver's door. You will have to remove the door panel to find it. The wire is dark green and purple. Splice into that wire and ground it to the chassis and the alarm should no longer work

Jan 22, 2011 | BMW 325 Cars & Trucks

1 Answer

My 2001 tahoe alarm keeps "auto" arming itself after about 30 seconds. How do I stop it from "auto" arming? Its driving me crazy


this alarm works with the remote and the key, if you lock with the key it arms if you lock with remote it arms,when you unlock it it should disarm, if your having a problem with it not working try the pass/side lock with key, that should shut it down but if it keeps rearming without locking doors then it may be aftermarket, also in your manualy it will show you that some factory alarms are also self arming this is programed through the cluster, using the buttons on the dash, you scroll through the options and shut off auto arming, this is done the same way you scroll for mileage or trip time or oil change life. hope this helps.

Sep 21, 2010 | 2001 Chevrolet Tahoe

3 Answers

I need to disable my alarm on a 1997 bmw 528i.


Now im not sure since the manual says your model has the same alarm system as the 328i and on the 328i you can remove the module to disable by doing the following. you can unplug the control module. It is located under the glove box. Climb under the dash on the passenger side and remove a few screws on the trim panel under the glove box. Theres a black control module with a green connector. There should be a lock tab on the connector. press the lock tab and pull out the connector. The alarm should now be disabled. But if it has the special transponder key this may not work.
But if the only reason you want to disable it is because of the motion sensor setting of the alarm for no reason there is a solution for this. To disable the motion sensor, hit the lock button to arm, then hit lock button again within four seconds to disable motion sensor. Red light on rearview mirror should flash four times, then pause, then start flashing on regular intervals. this is most likely the reason if your having the issue where the alarm goes off every 20 minutes.
If you want to completely remove it below is a wiring diagram taken from the manual for you alarm system.
this is from the manual its the alarm wiring diagram.
Battery Constant 12v Positive Wire ( ): Red/White or RedBattery Constant 12v Positive Wire Location: Ignition Switch Harness
Starter Positive Wire ( ): Black/Yellow or Black
Starter Positive Wire Location: Ignition Switch Harness
Ignition Positive Wire ( ): Green
Ignition Positive Wire Location: Ignition Switch Harness
Second Ignition Positive Wire ( ): Purple/White or Purple
Second Ignition Positive Wire Location: Ignition Switch Harness
Parking Light Positive Wire ( ): Gray/Purple and Gray/Yellow. Use Both Wires. This vehicle has a dual parking light system that will require 2 extra relays.
Parking Light Positive Wire Location: At Headlight Switch
Power Door Lock Positive Wire ( ): White/Red
Power Door Lock Positive Wire Location: At Factory Alarm Plug. The alarm plug is a black 12 pin plug located just behind the glove box.
Power Door Unlock Positive Wire ( ): Blue/Red
Power Door Unlock Positive Wire Location: At Factory Alarm Plug. The alarm plug is a black 12 pin plug located just behind the glove box.
Door Trigger Negative Wire (-): Brown/Gray
Door Trigger Negative Wire Location: At Factory Alarm Plug. The alarm plug is a black 12 pin plug located just behind the glove box.
Domelight Supervision Wire: Turns On With Unlock
Domelight Supervision Wire Location: N/A
Horn Negative Wire (-): Brown/Red or Brown/Yellow
Horn Negative Wire Location: At Steering Column Harness
Tachometer Wire Negative Wire (-): Black
Tachometer Wire Negative Wire Location: At Instrument Cluster
Brake Light Positive Wire ( ): Blue/Red or Green/Red
Brake Light Positive Wire Location: At Switch Above Brake Pedal
Factory Alarm Disarm Wire (-): Disarms With Factory Remote Only. Factory Alarm Disarm Wire Location: N/A
Factory Anti-Theft System: Transponder Anti-Theft System, Requires Bypass And Extra Ignition Key. The 1997 model year vehicle may require a bypass module and an extra ignition key, if vehicle is equipped with a special key from BMW.
Factory Anti-Theft System Location: Transponder At Ignition Switch Tumbler
if you require further assistance please let me know and i will help assist you from there. Thanks, Midwest-Tek

Aug 27, 2010 | 1997 BMW 328

2 Answers

How can i disarm the factory security alarm.i have tried the key locks. i have no remote with the car. i didnt know it had an alarm when i bought it . 1995 chrysler cirrus


Here is what I do on my 95 Cirrus I also do not have a keyless remote (well I do but is broke) and after frustation after frustation trying to disarm the factory alarm I find out that by unlocking the passenger front door with the ignition key from the outside will disarm it you may have to try few times before it's disarmed you need to make sure that the blinking red light stops blinking and all of the locks on all 4 door are up or unlocked, this is what I been doing for 3 years now and that's how I disarm the alarm on my car, I hope this helps.

May 15, 2010 | 1995 Chrysler Cirrus

1 Answer

1198 Dodge Ram Pickup


it sounds like you may have an aftermarket alarm system. it can be removed completely from the vehicle. if it is a factory system the key fob or unlocking the door wit the key should disarm the system. if they dont you may want to have a dealer or reputable shop check the system

Oct 12, 2008 | 1998 Dodge Ram 1500 4WD

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