Citroen Xantia (1993 - 2000) - 96 1.9 keypad fault can I bypass it

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Thu 2 Jul 2009 21:13
96 1.9 keypad fault can I bypass it - kernow jon
I have just purchased a 1996 Xantia LXTD.

I was attempting to change the keypad code and now cannot get the car to start - both red and green lights flash when I enter the code.

Either the original code or the new code I was entering.

Help!!! What do I do now?
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Sun 5 Jul 2009 19:11
96 1.9 Security electric problems Xantia Diesel N - kernow jon
Already posted problem with the Immobiliser. Tried to change code now cannot start using either new code or old code.

When I got the car the alarm was not working - and someone has done something to the Central Locking - it doesn't work and I have new spare parts for it boot lack has been replaced.

In an attempt to solve immobiliser problem I disconnected the battery. When I reconnected it the alarm activated. It will not turn off from the key or from inside the car using the button and the key.

It seems to me I may have to remove the alarm. Unless anyone has any other ideas. Where is the alarm box situated - someone said under the passenger seat - is that correct?
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Wed 14 Oct 2009 15:59
96 1.9 Security electric problems Xantia Diesel N - magchas
If you open the bonnet ,at the right hand side under the windscreen you will find a rubber ,press it and this will stop your alarm.

I will update you in a couple of hours ,I have to look out the instructions to change ,I have already done this before.Cheers Chas.
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Wed 14 Oct 2009 19:46
96 1.9 Security electric problems Xantia Diesel N - Mondaywoe
Sounds as if your problem is maybe a faulty security system component but do check that your Xantia has a decent battery. I once set off the alarm in my one and nothing would kill it - even using the keyswitch under the windscreen or disconnecting the battery! In the end I had to drive 10 miles to a battery supplier with the alarm going full tilt all the way. Then replacing with a new battery and locking/unlocking the dorrs once or twice with the remote cleared everything.

Anorher odd thing I remember about the Xantia was that on really cold days the 'peep' from the immobiliser keypad was very quiet - again possibly related to a lower voltage from the battery.

Good luck!
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Wed 14 Oct 2009 20:13
96 1.9 Security electric problems Xantia Diesel N - mjm
I suspect that after 3 months of the alarm going off the battery is flat
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Thu 15 Oct 2009 00:41
96 1.9 Security electric problems Xantia Diesel N - Dave_TD
Can you not just short out the keypad wires? This worked for me on the 405 and Berlingo.
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