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Sudden Alarm Issues

dezz

By dezz,
in Car Audio & Electrical

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dezz Grand Master

dezz

Posted
Posted

The alarm on my car started playing up the other day out of the blue...

When I arm the alarm now, it leaves the doors unlocked, so they need to be locked manually with the key...obviously if you open the door the alarm sets off, so its all working fine, other than the fact that it won't lock the doors upon arming...

anyone got any ideas as to what the problem is?

Easy fix?

cheers

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https://www.sau.com.au/forums/topic/162185-sudden-alarm-issues/
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raz0r$harP.UK Grand Master

raz0r$harP.UK

Posted
Posted

Pull the trim off and check if when you arm the car that the door locking motor is working. If not, pull it out (takes about 30 sec to do), get a replacement from any car audio / security shop and replace.

raz0r$harP.UK Grand Master

raz0r$harP.UK

Posted
Posted

Nah this sounds exactly what happened to me a while back. Keys would lock doors fine but when I used the remote sometimes it did, sometimes it didn't. Replaced motor and all was well.

The central locking motor I'm talking looks like the pictured below. (just make sure you get the one with the correct number of wires, they usually come in 2/5 wire versions).

Msk1000web.jpg

msnismo Grand Master

msnismo

Posted
Posted

Mine had this issue... the motors were weak.

The mounting position of the motors was not the best and it caused the motor to be over extended and eventually ineffective.. The key overrides the motor along the orignal clips hence why you can lock it with a key.

New motors are about $20 from memory... make sure it is mounted correctly too!

dezz Grand Master

dezz

Posted
  • Author
Posted

Ok...so I found I had one of those motors left over (they use the same 1 for boot release apparently but my installer said he didn't want to use it for that as it would fail regularly)

So I took off the door trim...I didn't even find 1 of the motors pictured above....all that was in the door looked to be factory stuff...So I basically stood there looking at stuff...poked around etc...decided I had no idea what I was doing and gave up....plugged the window control switch etc back in, armed the alarm, and bam...the doors lock now....So I fixed something...I just have no idea what exactly :(

RANDY Veteran

RANDY

Posted
Posted

If the motor was weak, and the rods were catching on your doortrim or something, then that would stop it from working.

To explain further on what the other guys were saying.. if you lock the drivers side door, you're overriding the motor for that door, but the passenger door gets the signal to lock/unlock when the drivers one is locked/unlocked... even if done manually.

Same way that if you lock the drivers door from the inside, the passengers side will lock automatically.

Chris Rogers Grand Master

Chris Rogers

Posted
Posted

you have a S2 correct that would mean you had hte keyless option. if so tey would have used the OE actuator. I would backtrack where it was tied in and check for a loose connection. if you cnat win go see keith and get him to sort it out.

dezz Grand Master

dezz

Posted
  • Author
Posted

Yep, series 2...and the key it came with had keyless entry on it...Since installing the alarm I've just been using the nismo key, and the remote to open doors obviously...

I played around with a few wires in there, and it seemed to work....then died shortly after.

Just a suspicion/thought, the passenger door lock button on the drivers side window controls, I remember when the installer did the alarm, that button no longer locked/unlocked the passenger door anymore....now that the remote is failing to lock/unlock the doors, that button is working again....

When I pulled the trim off, I obviously had to disconnect the plug that controls that button and the wipers etc...The doors didn't lock from the remote until I reconnected that plug...Is there a chance its got something to do with that? If I was to cut the wire that controls that door lock button, any chance that would solve the issue?

HUNTZ Contributor

HUNTZ

Posted
Posted

Yeah I think i'm going to have to do the same. Weird mine was working fine until I tried locking doors while the timer was still running. Doors unlock by remote just don't lock. Sounds like we got the same problem, I'll let you know whats up with mine when I get it sorted...

  • 2 weeks later...

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