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Factory alarm is activated when unlocking door

2000 toyota sienna factory alarm is activating whenever you unlock the door either manually with a key or by using remote. the remote will not turn off the alarm .The alarm will only turn off once you put the key in the ignition and turn 1/4

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  • mrphilbert Jan 29, 2009

    I'm having the same problem with my 2000 sienna. alarm goes off whenever I use unlock on my remote or when I try to unlock door with the key. I've changed batteries, but no luck . Alarm goes off again when I start the vehicle. Haven't noticed any other electrical problems. I've talked to our local toyota dealership and they offered to do a diaognostic but gave no guarantees. Could the problem be with the Integration Relay as mentioned in a previous post?

  • Anonymous Feb 20, 2009

    I have a 2001 Toyota Sienna with exactly the same problem. Alarm goes off when trying to unlock with the key or keyless remote. Only way to shut the alarm off is to put the key into the ignition and turn on the car.

  • ctomasino Mar 23, 2009

    Toyota Sienna 1998 with the same problem that just started after 10 yrs of ownership. Like others, my dealership has never heard of the problem. My batteries are fine. Works the same with both sets of keys and unlock/lock fobs. Only putting the key in the ignition will turn off the alarm. It is funny that the problem will only happen after the car has been sitting for approx 5-10 minutes. When the alarm sounds after the first time, if you lock the car and use the remote immediately the car will open as it should with no alarms whether you use the unlock remote or the key. Let it sit and try and you get the alarms going off.

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5 Suggested Answers

  • 330 Answers

SOURCE: x5 -alarm system can't be activated

I press the remote control middle (BMW) botton, one time to set up the alarm, when I release the alarm, I press the one above the
BMW botton one time, this botton control driver side door too, if I want to open other three doors, I have to repress the same botton one more time.

Hope this can help .

Posted on Jul 09, 2008

countrysi248
  • 443 Answers

SOURCE: 2000 Toyota Sienna Minivan car alarm goes off.

1. Start with key out of the ignition, drivers door is open all others closed and
drivers door is unlocked.

2. Insert key into ignition (Do not turn) and pull it out.
3. Perform these steps within 40 seconds.
A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting
with lock. Use an even pace and try to go about one cycle per second.
(1 cycle = 1 lock and 1 unlock.)
B. Close, then open drivers door.

4. Perform these steps within 40 seconds.
A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting
with lock. Use an even pace and try to go about one cycle per second.
(1 cycle = 1 lock and 1 unlock.)
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Turn the ignition to ON (Do NOT Start) then back to OFF.
E. Remove the key from the ignition.

5. Within 3 seconds the power door locks should cycle automatically indicating successful entry
into programming mode. Return to step 1 if the locks do not cycle at this point.

6. Perform these steps within 40 seconds.
A. Press the lock and unlock buttons on the remote simultaneously for 1 second.
B. Immediately after letting go of the lock and unlock buttons,
Press the lock button by itself and hold for 2 seconds. Within 3 seconds the door locks
should cycle once indicating successful programming. If the door locks don't cycle or
cycle twice, repeat steps A and B, your remote has not been accepted.
C. Repeat steps A and B in step 6 for each new transmitter.

7. Close drivers door.

Posted on Apr 25, 2009

ghost4548
  • 776 Answers

SOURCE: My alarm on my 2002 Hyundai Sonata keeps going off

Experience with this problem points to several possible causes. First, hood switch is improperly adjusted or rubber button on the underside of the hood which strikes this switch is missing or worn out (does the 'answer back' feature (horn toot) occur when you press the "lock" button on the keyless remote twice?). If it doesn't, this is the first place to look -- is the hood bent out of shape? Often I have found the hood adjustment is SO CLOSE to the hood switch being 'CLOSED', that a simple gust of WIND can set off the alarm.
Next, each door and the trunk have switches which must be in their proper positions (closed -- Open Circuit communication with the ETACS module) for the burglar alarm to SET Active/ON. The problem could be at any one of these switches, not to mention the ETACS module itself. Best solution:Take/tow the vehicle into a Hyundai Service Center (dealership), pay the diagnostic fee. They will tell you EXACTLY what the problem is and what's needed to fix it (parts, labor, tax, time-frame, etc.).

Posted on Jun 06, 2009

  • 43 Answers

SOURCE: central locking not being activated by remote

somehow the car when on valet mode, go to a alarm shop , they should be able to re arm your car without to much damage to your pocket, or read your cars manual, it might inform you on how to fix the problem.

Posted on Sep 23, 2009

  • 2 Answers

SOURCE: integration relay p/n 82641-08020 for my 2000 Toyota Sienna van

Dealer Item ` $200
Junk Yard ~ $100
https://toyotapartscenter.net/toyotasiennaparts.html?gclid=CPX5u8HUlZ4CFSn6agod6Ae1oQ sells them for $167.17 + shipping and tax
PH; 800-516-1455
I recommend a pull, light tap and reconnect, recheck B4 buying. Also, shop manual has proper test procedure, Pages BE16-17

Posted on Nov 18, 2009

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2000 Toyota Sienna Minivan car alarm goes off.


1. Start with key out of the ignition, drivers door is open all others closed and
drivers door is unlocked.

2. Insert key into ignition (Do not turn) and pull it out.
3. Perform these steps within 40 seconds.
A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting
with lock. Use an even pace and try to go about one cycle per second.
(1 cycle = 1 lock and 1 unlock.)
B. Close, then open drivers door.

4. Perform these steps within 40 seconds.
A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting
with lock. Use an even pace and try to go about one cycle per second.
(1 cycle = 1 lock and 1 unlock.)
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Turn the ignition to ON (Do NOT Start) then back to OFF.
E. Remove the key from the ignition.

5. Within 3 seconds the power door locks should cycle automatically indicating successful entry
into programming mode. Return to step 1 if the locks do not cycle at this point.

6. Perform these steps within 40 seconds.
A. Press the lock and unlock buttons on the remote simultaneously for 1 second.
B. Immediately after letting go of the lock and unlock buttons,
Press the lock button by itself and hold for 2 seconds. Within 3 seconds the door locks
should cycle once indicating successful programming. If the door locks don't cycle or
cycle twice, repeat steps A and B, your remote has not been accepted.
C. Repeat steps A and B in step 6 for each new transmitter.

7. Close drivers door.

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Sounds electrical/relay to me if you cannot lock by pressing the lock button on the door itself. Driver and passenger acting the same AND the remote all the same result point to only one culprit.
Let me know how it goes and best of luck!

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