General Alarm M792/M892 - Fitting problems - HELP!!

Currently reading:
General Alarm M792/M892 - Fitting problems - HELP!!

Joined
Oct 28, 2007
Messages
128
Points
41
Location
Crewe
Please help, I have started to fit my alarm today and have come across a small problem. There is a Blue wire from the Alarm Control Box wiring loom (No 7) that connects to Pin 8 of (I quote) "20 PIN White Connector located above Branch Control Box" (Connector Q on picture).............. what and where is this as I can't find it. Looking at the picture (Fig 21) it's a connection to the "Code WFS" which I interpret as the control box for the key code ?? If it is, where is this located as there isn't anything there where the arrow is pointing on Fig 21.

scan0005.jpg


Please please help, this is the last wire I need to connect to finish the job of and try the thing.

Cheers
 
The other end of the wire they're talking about goes to the connector above that the other wires are chopped into so easier to connect it there than try to find the mythical white connector.

Can't remember exactly which one it is though but it's a direct connection to the wire you connected in the fusebox under the bonnet.
 
The other end of the wire they're talking about goes to the connector above that the other wires are chopped into so easier to connect it there than try to find the mythical white connector.

Can't remember exactly which one it is though but it's a direct connection to the wire you connected in the fusebox under the bonnet.

So what your saying is to connect wire No7 (Blue) into a connector at the back of the passenger/driver fusebox (next to one of the ones I have already tapped into) and splice it to the same colour as the Code WFS wire that I connected into in the engine fusebox?? :confused::confused: (Black/Green I think it was)
 
Last edited:
Wasn't being specific about the colour just that after following it in the wiring diagrams that's where it ends up, I'll check for you when I get a chance but don't hold your breath today.
 
I recently had this problem,now I cant remember if I left the wire disconnected or actually fitted it but I did fnd the connector....just cant remember where....it will come back to me after a cuppa & a cig:)

(can you post up rest of instructions,might help jog the old memory)
 
Last edited:
Ahhh yes I think I remember now!

I'm sure it goes to the plug on the stalk switch...think its the horn wire.The siren also connects to the horn circuit at the relay under bonnet area(no 59 from siren....see figure 10)

Please please please be careful there is airbag wiring at column switch! Dont want any nasty accidents!therefore I can only suggest the above,double check then triple check!!!!

I believe the reason it is like this is so there is no need to take any wiring through the bulkhead.
 
Last edited:
Yep, it is the horn one and I assumed that was how it worked as well.

The wire you're looking for is red/black on pin 8 as it says but you can find the other end on pin 18 of the connector in fig 20 which as you have to dig that one out to connect the other wires may be easier to do at the same time.
 
Hi, no I didn't pick up an Airbag wire thankfully and after some cussing and swearing :mad::bang::mad: I have now manged to complete the installation thanks to T14086 and B1g1an, you guys have been a massive help and without you I wouldn't have managed to finish it. I also spotted that the instruction manual tells you to wire up the CAN wires incorrectly and soon rectified this when nothing was communicating, all seems to be fine now.

Had loads of trouble getting the one Microwave sensor from drivers side to passenger through behind the centre console and Aircon unit, managed it in the end and tucked it behind the carpet to run up the 'A' Post and sit nicely at the top. All seems ok (Touch wood) and the alarm didn't sound last night for any reason even though I slept with the keys just incase it decided to go off due to the rain and the wind.

Thanks again guys, you rock :slayer::slayer:
 
I own this car now and the alarm is a touch sensitive! Goes off randomly, usually while I am in the office on a hot day. So still some gremlins to iron out.
 
OK; well I can report the alarm is working perfectly so far. Connecting the actual cables is a real ball-ache; I can't even believe a dealer getting this done in an afternoon!

The front bonnet sensor (a tiny 50p microswitch) works better than expected.

As for the above Can-Bus wires: I have to say the manual matches the reality for me and there were no problems; both colour and position match up. It was almost tempting to assume the adjacent twisted pair were in fact the Can data lines, but no, in my case trust the manual.

As it happens my model also came with 2 un-needed plips, these are hilariously useless because they don't trigger the central locking at the same time! But works perfectly off the factory remote so there you go.

Not for the feint hearted but good now it's done!
 
Back
Top