1997 xj immobilizer issues

[nitrobrent]

Originally Posted by Roler

This is interesting. And hopeful. But strange at the same time, that this would have never been tried before in the quest for the solution of the immobiliser issue... What kind of overhead console/receiver are we talking about here? Because I've seen several different ones. Could you post a pic?

Sorry took so long to reply, been Jeepin, went to load pics the other day , had forgotten they have to be resized to go on here.
The overhead in the pic is Liams , reciever screwed into the bit hanging down.
The receiver Dave sent , was housed in a metal dome sort of thing.
No light or anything.

[Roler]

This is what mine looks like, never worked out when it was changed to the long overhead console that has the lights in etc,.1999+ Wonder if it works for me...I still think this is something different to the immobiliser cutting out the engine -issue..

[nitrobrent]

Originally Posted by Roler

This is what mine looks like, never worked out when it was changed to the long overhead console that has the lights in etc,.1999+ Wonder if it works for me...I still think this is something different to the immobiliser cutting out the engine -issue..

Thats the dome that Daves was in.

[Tezza]

Originally Posted by nitrobrent

Thats the dome that Daves was in.

I believe your correct, you guys are talking about the central locking I have changed a few of these so they match the remote or fob and never had trouble wit it immobilising the car.
Correct me if I'm wrong with different models.
Cheers Tezza

[junglejuice]

Originally Posted by Roler

This is what mine looks like, never worked out when it was changed to the long overhead console that has the lights in etc,.1999+ Wonder if it works for me...I still think this is something different to the immobiliser cutting out the engine -issue..

Most likely it was a model level issue like the pre-updates, the Sports didn't have the overhead console but the Limiteds did....

[carvesdodo]

Originally Posted by Tezza

I believe your correct, you guys are talking about the central locking I have changed a few of these so they match the remote or fob and never had trouble wit it immobilising the car.
Correct me if I'm wrong with different models.
Cheers Tezza

The first run of the updates utilised the central locking system to activate/de-activate the immobiliser,

i.e. ... unlock doors with fob ... doors unlock ... and PCM also gets a message to de-activate the immobiliser function of the PCM.

... by mid / late 98 the immobiliser was changed to the now typical, expensive ignition key transmitter and steering column receiver.

[nitrobrent]

Originally Posted by carvesdodo

The first run of the updates utilised the central locking system to activate/de-activate the immobiliser,

i.e. ... unlock doors with fob ... doors unlock ... and PCM also gets a message to de-activate the immobiliser function of the PCM.

... by mid / late 98 the immobiliser was changed to the now typical, expensive ignition key transmitter and steering column receiver.

Thought about getting the transponder based system, but would probably have to change loom etc.
As long as get a year or so out of this body be happy.He will know doubt bang it up a bit.