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Second Generation Legend (1991-1995)

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Old 09-29-08, 01:11 PM   #1 (permalink)
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Disabling Factory Security System

does anyone know who to disable the factory security system? i had an aftermarket system completely removed but my alarm still goes off and i can figure out the rhyme or reason for it.

if i lock the car from the inside, the alarm will go off the next time i unlock the car from the outside.

if i lock the car from the outside, the locks will click repetedly, like it is tryin to lock them again, even though it is locked.

if ALL the doors are unlocked and i lock the car with the key from the outside, only the driver's door will lock.

i cant figure it out so i thought i might just not use the factory security system.....
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Old 09-29-08, 01:16 PM   #2 (permalink)
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sounds like you have a problem with your door actuator... symptoms are
1) locks on door repeatedly keeps trying to lock itself
2) alarm goes off when using the key to open the door

try a search... this is problem is notorious on the legends and has been discussed numerous times. i hope this helps
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Old 09-29-08, 02:30 PM   #3 (permalink)
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alright, thanks for the info
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Old 09-29-08, 08:16 PM   #4 (permalink)
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Im having the same problem after I change my driver side door off a 91. The alarm doesnt come off all the time but still trying to figure out why it does it once in a while
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Old 09-29-08, 08:20 PM   #5 (permalink)
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Hopefully you saved the "old" door. Just swap out the door lock actuator.
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Old 09-29-08, 08:54 PM   #6 (permalink)
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Quote:
Originally Posted by ari_one View Post
Hopefully you saved the "old" door. Just swap out the door lock actuator.
I was gonna give it to the scrap guy at work last friday good thing it didn't fit in my trunk! Thanks ari_one i would have never thought of that, been trying to figure out all the wiring all this time, You're the man! we should start calling you The Legend Master since you have answere for every single legend problem

I was gonna ask, are 91 and 92 doors the same?? im missing the connector (as shown) on the 91 door.
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Old 10-03-08, 12:56 PM   #7 (permalink)
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BUT, DOES ANYONE KNOW HOW TO JUST DISARM THE SECURITY SYSTEM??
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Old 10-03-08, 02:36 PM   #8 (permalink)
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Quote:
Originally Posted by brodank View Post
BUT, DOES ANYONE KNOW HOW TO JUST DISARM THE SECURITY SYSTEM??
Short the connector at the hood latch IIRC, it won't arm because it thinks the hood is open.

I'm sure I've seen that posted here before, did you search?
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Old 10-04-08, 06:33 AM   #9 (permalink)
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Quote:
Originally Posted by brodank View Post
BUT, DOES ANYONE KNOW HOW TO JUST DISARM THE SECURITY SYSTEM??
The paperclip way cheating the hood latch of the factory alarm. That means it tricks out the alarm into thinking that the hood is always open so it will never arm. The security LED in the door should not light up. All you need is a paperclip and electrical tape to disable the OEM alarm. Here's the way to do:
  • Pop up the hood.
  • Reach behind the hood latch and find the wire. That's one cable (negative controlled)
  • Try to find the connection just below the radiator support and disconnect it.
  • Bend the paperclip into a 'U' form and stick it in the end of the connector what runs under the radiator.
  • Tape it all up.
  • Done
You basically just need to 'Short' the hood switch to make the OEM alarm think that your hood is always opened thus preventing it from arming. The hood switch wiring can be accessed of the center pillar in front of the radiator when you open the hood. Undo the 2Pin connector (Black, Yel/Red) in the hood switch wiring. Bend the paperclip into a 'U' form and push it into the 'Female' end of the hood switch wiring connector. Now secure the clip with some electrical tape and you are finished! Consider that the mod is totally reversible. You just remove the paperclip and snap the connector back into place.

How That Stuff Works
Basicially: When the OEM alarm system is Disarmed, the OEM alarm will Arm itself only, if all functions (Doors, Hood & Trunk) & conditions are right. Conditions means, when all places of the Doors, Hood and Trunk are CLOSED. Once the OEM alarm determined that the conditions are Closed, it will Arm.

Paperclip: By doing the paperclip now, the alarm system think, that when all functions are closed, it means the circuit is currently Open. The paperclip now wii bypass the OEM alarm into thinking that the hood has been opened. So the OEM alarm will never Arm.

How To Test: Disconnect the 2-Pin connector (Black, Yel/Red) from the hood switch. There should be continuty between A + B terminals when the lever is released (Condition: Hood Opened). There should be no continuty when the lever is pushed (Condition: Hood Closed)

Note hat the alarm system is negative triggered. The same function like the Door Lock Actuator (Example: The Light & Door Controls).
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Old 07-31-09, 11:03 AM   #10 (permalink)
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Similar problem with 1993 LS

I can't disable the alarm by opening the either door with a key, it does not dismarm when the key is used in the ignition.
I tried the paperclip disable, the system still arms with doors, trunk, hood open or closed.
Checked the fuses, they are all good.
Removed battery cable thinking it would reset the module, alarm sounds as soon as the cables are reconnected.
Given that the system is negative activated, I don't think it is a ground issue.
I think the module is gone. Any thoughts??
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Old 09-23-10, 07:22 PM   #11 (permalink)
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Quote:
Originally Posted by MikeD View Post
The paperclip way cheating the hood latch of the factory alarm. That means it tricks out the alarm into thinking that the hood is always open so it will never arm. The security LED in the door should not light up. All you need is a paperclip and electrical tape to disable the OEM alarm. Here's the way to do:
  • Pop up the hood.
  • Reach behind the hood latch and find the wire. That's one cable (negative controlled)
  • Try to find the connection just below the radiator support and disconnect it.
  • Bend the paperclip into a 'U' form and stick it in the end of the connector what runs under the radiator.
  • Tape it all up.
  • Done
You basically just need to 'Short' the hood switch to make the OEM alarm think that your hood is always opened thus preventing it from arming. The hood switch wiring can be accessed of the center pillar in front of the radiator when you open the hood. Undo the 2Pin connector (Black, Yel/Red) in the hood switch wiring. Bend the paperclip into a 'U' form and push it into the 'Female' end of the hood switch wiring connector. Now secure the clip with some electrical tape and you are finished! Consider that the mod is totally reversible. You just remove the paperclip and snap the connector back into place.

How That Stuff Works
Basicially: When the OEM alarm system is Disarmed, the OEM alarm will Arm itself only, if all functions (Doors, Hood & Trunk) & conditions are right. Conditions means, when all places of the Doors, Hood and Trunk are CLOSED. Once the OEM alarm determined that the conditions are Closed, it will Arm.

Paperclip: By doing the paperclip now, the alarm system think, that when all functions are closed, it means the circuit is currently Open. The paperclip now wii bypass the OEM alarm into thinking that the hood has been opened. So the OEM alarm will never Arm.

How To Test: Disconnect the 2-Pin connector (Black, Yel/Red) from the hood switch. There should be continuty between A + B terminals when the lever is released (Condition: Hood Opened). There should be no continuty when the lever is pushed (Condition: Hood Closed)

Note hat the alarm system is negative triggered. The same function like the Door Lock Actuator (Example: The Light & Door Controls).
Anybody have pictures?
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Old 09-08-14, 06:46 PM   #12 (permalink)
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anti theft security problem

I have a 1991 acura legend and I have a problem with the
Anti-theft system I tried resetting it with the key but it's not
Working. The dash lights turn on like it's gonna start but
When I crank it the car doesn't turn on.
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Old 09-08-14, 08:30 PM   #13 (permalink)
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Large connector on gold box, yellow/blk wire> ground it! unplug all connections to gold box!
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