has anyone ever come across this?

I have a 2000 plate discovery td5 series 2 and need help solving an issue. When I lock the doors the alarm keeps going off, if I remove the fuse for the cigarette socket it works fine, sounds easy to solve!!!!!! Not so, although removing this fuse solves the locking problem, the dash clock and radio still come on so, power is being drawn until battery goes flat, does anyone have any ideas, or had this issue with there disco.... help please.

Which fuse number are you pulling and where is it , Engine bay or Drivers compartment?

I assume you mean the clock and radio work when you have the ignition turned off and key removed???

Cheers

Hi Neilly, I'm pulling a 20A fuse in the drivers compartment, its the fuse for the cigarette socket, doing this enables me to lock the truck without the alarm going off but there is still power being drawn from somewhere to the dash clock and radio.

Are all your interior lights working OK?

Cheers

Yes buddy all of them, I fitted LED bulbs to them I also fitted LED spot lights but wired them direct to the fog light switch, CB radio fitted, infact everything I fitted myself I disconnected, but still have this problem and to be honest everything was fine until it all went wrong, if that statement makes any sense.

ive just pulled all relays from under the bonnet and also removed the 5633 bonnet alarm switch and that seems to lock fine now, however there WAS still power to the clock and radio, at the moment the truck is locked the radio and clock are off so touch wood that switch could be the fault, I'm checking the radio and clock regularly and waiting for alarm to go off, if it does now doubt it will be at 2am, but hopefully it wont.

Well Neilly pulling the Bonnet alarm switch didn't work, strange though because it was all good until 9.30pm when alarm went off again so it was fine for about 6 hours, any ideas buddy?

Do you have access to a nanocom / hawkeye etc?

If Inwas you I would look at doing a parasitic drain test to see if that shows if there is a drain somewhere.

I would also pook at isolating certain areas of the alarm system . Lile the volumetric system.

Cheers

A land rover guy told me there was a black box either n/s or o/s depending on the year of the disco with a brown plug in the bottom, just behind one of the suspension struts, he told me to disconnect that and see what happens, I did but there was no change, I am going to pull fuse on horn to dampon the sound and set alarm off while I pull fuses and relays until it stops, that's all I can think of, what winds me up is I know it will be something really simple and cheap but I may have to take it to a land rover dealer to find out what it is, and we all know how they can charge.

Have you also checked the fuse box / IDM for corrosion?

They are prone to failing if they have been wet a while.

Cheers

had a new fuse box to try that, that didn't work had my land rover guy put his CCU on it and it didn't find a problem. I'm really stumped.

To my mind, it sounds like you have a parasitic drain now.
I would go thru the test to see if you can find one.

EDIT, re read the whole post, I changed my mind about the parasitic drain.

If all doors are locking correctly and you are not getting a mislock sound on locking , I wonder if you have a door lock with an intermittent error.

Only thing you can do is to go thru it sep by step and knock potential concerns off the list.

If the noise from the alarm is a major sisue at unsociable hours, then maybe get the alarms switched off in the short term. I know a nanocom can do this.

Cheers

thanks for the info Neilly, but, touch wood, problem maybe solved. But I will let you know for sure over the weekend.

thanks Nielly, problem sorted for sure, all it was, was 3 interior light but causing me this headache, just because they where LED bulbs, who'd have thought, and not even Landrover specialist or a CCU could figure it out, cheers fella.