Central Locking Remote & Receiver

[Dean]

I will give it a go this afternoon John and let you know what happens.

D

[David Hallworth]

I wonder if I could reprogram a series 1 IR plip to the receiver that's already in my XM.

Will need to see if I've got a working one first.

David.

[xmexclusive]

Hi David

It seems that it is worth a try.
I have only just realised that there were 2 different types of XM Mk1 Plip set innards.
The early type are made as a fixed paired set and will not match up to any others even those of the same version.
Spent a few evenings quite a while ago trying to work out how to recode these without any success.
Until yesterday I thought all Mk1 XM plips sets were that restricted use design.
Entirely your fault that I started checking them out and now Dean has proved this later type has Mk1 Xantia programming capability.
The real gem about his discovery means that on a classic Mk1 XM you could programme both a Xantia plip for general use and genuine XM plip for show and display use. That would avoid usage wear of the XM plip while keeping the plip system in regular use.
Will see if I can flesh out this posting with photos and turn it into a self help.

John

[David Hallworth]

Hi John,

The plip that I've got was removed from a 1990 V6 Sei that I broke for spares a good few years ago now.

Will see if I can still locate it and give it a go. I've still got the plip from my 1993 V6 24v but don't really want to take it away from that car.

To pair a plip is it the same as with the Xantia? Ignition on and aim both keys at the central locking receiver by the interior light for 10 seconds?

David.

[Dean]

I had a little play this afternoon but swmbo is not well and i didnt have time to start taking stuff apart, here is my findings though.

early XM's up to at least 1992 used Kiekert IR1 plips and recievers these are not reprogramable and like swans they pair for life.

At some point between 1992 and the introduction of FM rcl the Kiekert IR2 system was used, this is the two button system used on Mk 1 xantia's and many other psa cars, later single button xm blips also contained the IR2 upgrade but from the case at least there is no way to tell them apart from IR1 blips.

The only difference is that the IR1 is paired for life and seems impossible to re code, IR2 on the other hand can have any other IR2 blip coded to it very simply.

Now the Xantia battery is dead now but i can confirm an IR1 reciever will fit straight into an IR2 car and vise versa ,they (like the xm blips) are identical from the outside and even use the same plugs with the same colour wiring so i have put out a cal for a Kiekert IR2 reciever on fcf, i will then fit this into the XM to see if it works happily with the old alarm. seems almost too simple.

D

[Dean]

Hi John,

The plip that I've got was removed from a 1990 V6 Sei that I broke for spares a good few years ago now.

Will see if I can still locate it and give it a go. I've still got the plip from my 1993 V6 24v but don't really want to take it away from that car.

To pair a plip is it the same as with the Xantia? Ignition on and aim both keys at the central locking receiver by the interior light for 10 seconds?

David.

1990 will be IR1 and as such not reprogramable, 1993 may still be IR1 too, the sequence is indeed the same for the Xantia.

If my plan works then all you need to do is plug a xantia reciever or later XM reciever in and then as John says you can pair as many IR2 plips to it as you want, either single button with the red citroen logo on or xantia/later xm 2 button ones.

I will find out if this works as soon as i get a spare reciever.

D

[xmexclusive]

Hi Dean & David

The 2 late version (IR2) XM plips that I have were manufactured 06/93 and 11/92.
We will have to see if anyone finds one made earlier.
Dean it seems that the IR2 receivers are always in the roof light.
If you are scrap yard visiting you may well find a couple in PUG or CIT cars.
Doubt the scrappy will want more than pence.
From one I have here they were still in production 08/01 so the should be a good number out there.
No that I know this is worth the effort I will see if I can set up one of my Mk2's as a test bed.
Have a made up lead somewhere that I plugged in to get multiple receivers running in a single car.
Think that had a Mk1 plug as well as two Mk2 ones.

John

[Dean]

here are the two Blip types side by side, look the same dont they.


CIMG3213 by Deanxm, on Flickr

This one is IR1 and is not reprogramable, tried it a few times and it wont do anything

CIMG3219 by Deanxm, on Flickr

And here is a close up of the IR2 blip

CIMG3218 by Deanxm, on Flickr

Hope you can see the difference John because i sure cant!

D

[xmexclusive]

Hi Dean

Where are you seeing the IR1 and IR2 markings?
My two "later" ones are marked in the same way on the main chip.
Markings are:
X018765 11/92
X052613 06/93

The earlier XM ones that I examined some time ago had a totally different pcb with a patch area of about 12 copper tracks.

Dean was the second plip that failed the third one that you tried?
If so it may be that the IR2 recievers can only hold coding for 2 Plips at any one time.
In that case it is just possible that you actually have two working XM plips.

John

[Dean]

im not seeing the markings thats the problem.

The xm has not to my knowledge ever had more than one blip yet the IR2 blip i bought will not code to it nor will the xantia blip but the new IR2 blip picured above will code to the xantia no trouble.

It would be easy to prove that the xm is IR1 or 2 by trying to code its blip to the xantia but since the Xm wont code any blips to itself then i would end up with 3 blips for the xantia and none for the xm.
I will get another reciever, plug it into the xm and try coding the spare blip to it again and see what happens.

If the reciever will only alow two blips and that is the reason the xm will not match up to another blip do you think there is any way to clear its memory so you can start again?

D