Door Lock Relay

[laracer]

Does anyone know where this relay is located (1995 Chimaera) ? - taken the dash cover off and also searched in the glove box hatch but no joy :-(

[laracer]

Thanks for the reply - not there on my car - looks like it has been replaced by a Cobra 1046 unit which I now suspect is at the root of my unlocking problems :-(

[laracer]

The plot thickens - The Cobra door locking unit is connected into the immobiliser and main loom by some rough wiring/connections. The immobiliser is activated by the Cobra remote and this function works ok, my problem is that there is a very intermittent (around 1 in 50) unlocking function for the doors.
Obviously I will have to go through all this with a multi meter and try and sort out the fault/wiring.

Can't find anything out about using a Cobra door locking unit working in connection with an immobiliser - seems to be a stand alone unit/function - if I unplug the Cobra unit the immobiliser is activated and car will not start :-(

Can anyone identify the immobiliser? - the circuit board is marked TVR - XP4

[laracer]

Thanks very much for the information Mr Pitstop - I will carryout some more investigation over the next few of days and report back - I have a feeling this may take some time

[laracer]

Thanks for your investigative work (I missed that Meta thread), much appreciated and a great help - this looks exactly like my circuit board and I think you are spot on with your diagnosis of the partial breakdown and central locking add-on remedy.

I was going through the wiring and testing yesterday and found no obvious problems but the unlocking rate of success started to improve significantly until it know operates successfully every time! - I know of nothing I did to get it working again.

However, when leaving it in the unarmed state, after a few seconds it would suddenly arm itself without me doing or touching anything and the remote button functions would be reversed !! - after this happened about 4 or 5 times it settled down to the correct remote function and now does not arm itself without input from the remote - it's now working as it should :-)

Although everything seems ok now, I am not confident this will remain the case - do you think it will be straight forward to replace the whole system to an integrated immobiliser/central locking unit? (any DIY recommendations)

Here is the wiring diagram of what I found

[laracer]

Belle427 said:

I removed a foxguard system from a 1995 Chimaera and replaced it with a more modern Toad system.
If your ok with electrics its pretty straightforward, i can send you the wiring colours that were on my car, its probably the same.
Most awkward part is running the cable through the engine bay for the new siren and fitting the bonnet pin switch but not difficult.

Thanks - The wiring colours would be a great help (and save me a lot of time).
Has your Toad system been ok? - which one did you fit?