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> Alarm and Anti-Theft Device
Desperado
post 13th February 2017 22:44
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Hi.

Can the alarm and anti theft device module that is in the boot be removed without upsetting anything else in the car like the Key Code system.

I dont have the key for the module it and was therefore going to remove it and fit a new keyswitch.

I have the Master [red/brown] key and the alarm code. coolio.gif

The system is currently off and presumably the isolator key is unobtainable?

Regards

R.


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GialloEvo94
post 14th February 2017 08:22
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Yes, you can remove it without upsetting anything. It is not linked to the CODE immobiliser system in any way. The alarm and immobiliser are two completely separate systems. So you can simply just disconnect the two rectangular plugs from the alarm siren iwithout any issues.

If the keyswitch is currently in the off position then there is the possibility that the reason for that is due to the alarm currently being in a persisted armed state. You will find out when you reconnect it back up because if it is in an armed state then it will automatically arm itself as soon as you connect it back up and turn the keyswitch to "on". If this happens and your remote central locking is working, then just unlocking the car with the remote will disarm the alarm. If not then there sre options to resolve the situation but it involves some reprogramming.


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Desperado
post 14th February 2017 09:18
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Thanks....


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Desperado
post 16th March 2017 22:45
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Job done.

Fitted this, RS Stock No. 182-556

http://uk.rs-online.com/web/p/key-switches/0182556/

Its smaller than the original so a spacer is needed to fit it to the existing hole.

New batteries in the fob and all working, the range is not very good though. My other 145 is an ultrasonic device, and works very well. How come they're both factory fitted but one is infra red and the other is ultrasonic?



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GialloEvo94
post 16th March 2017 22:52
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QUOTE(Desperado @ 16th March 2017 22:45) *
Job done.

Fitted this, RS Stock No. 182-556

http://uk.rs-online.com/web/p/key-switches/0182556/

Its smaller than the original so a spacer is needed to fit it to the existing hole.

Good work biggrin.gif

QUOTE
My other 145 is an ultrasonic device, and works very well. How come they're both factory fitted but one is infra red and the other is ultrasonic?

It's just down to the ages of the cars. The older cars use an IR system while the newer cars use an RF system. I can't remember the exact swap-over year but advances in technology enabled a move to the more reliable and secure RF system.


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Desperado
post 18th March 2017 10:10
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QUOTE(GialloEvo94 @ 16th March 2017 22:52) *
Good work biggrin.gif
It's just down to the ages of the cars. The older cars use an IR system while the newer cars use an RF system. I can't remember the exact swap-over year but advances in technology enabled a move to the more reliable and secure RF system.



They're both 96 QV's. Registered about the same time.

I'll be out working on them today so i will have a look and see whats going on.....


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GialloEvo94
post 18th March 2017 15:37
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From: South Oxfordshire, UK



QUOTE(Desperado @ 18th March 2017 10:10) *
They're both 96 QV's. Registered about the same time.

I'll be out working on them today so i will have a look and see whats going on.....

It's possible that someone retrofitted an RF system to one of your cars but I'm willing to put money on 1996 being the changeover year with each of your cars falling either side of the changeover. If you stick the VINs into ePER you'll be able to find out what system was fitted to each car at the factory.


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