I been searching for while now for a new Multi-function unit, managed to get one from one of my dads old mates (he has a scrapyard) took the whole fuse box and white MFU off it. The truck it came off WAS running, until I butchered it, it was in because of dreaded tin worm. Everything electrical...

Wits end now really. From todays exploits I have found that 1. I now have all 4 doors switches working. :) 2. The diode IS working correctly - after testing it like Discool advised :) 3. There is no power whatsoever to pins 1 & 16 of the alarm box. So looking at this I then scratched me 'ead...

Thanks, but the bloomin thing IS working correctly. :rolleyes: Close to giving up now. :(

:(:(:(:(:( Well I took the diode off the circuitry this morning and tested it by 1. Setting my multi-meter to Ohms 2. testing the resistance both ways as stated. 3. Results were with the +ve at the front of the switch & -ve to the rear .677 4.repeated the test with leads other way around &...

How much is :D price & how the hell do ya change the batterys????

Cheers guys, on another note is there a replacement part for the alarm sounder at all that would be compatible with the D1??? Mine self combust ages ago and although its been nice and quiet trying to trace this fault down, if possible I'd like to get things working properly again. I've seen a...

Thank you!!! I'll have a look tomorrow, do the tests & hopefully have an answer.

Thanks for that Discool, sorry for sounding like a complete wally, but I REALLY am crap with lectricks! (I bet you're banging your head against a wall right now). I think, think?!?!? I / we may be on to something here, just done some research on the Lucas 10-AS alarm. The input for the...

Wouldn't know where to start in checking it (as I said I'm pretty crap at sparkin) :D and how would the diode affect the interior lights & holding down the HRW button turn em off??? Can you get new diodes??? Just looked and ????????? dunno what part no. I'd be looking at? Sorry for all the Q's...

Right! After a lot of faffing about today I have found out which door was at fault - It was the tailgate :eek::eek::eek: Now here is where I need HELP pleeeeeeease!!! I found the tailgate to be at fault by process of elimination by 1st checking all the door switches AGAIN!!! couldn't find any...

Tested all 4 remaining doors and they all state .074V, I then had a brainwave :eek: I plugged in my Hawkeye (never thought about using it before as there aren't many electronics on the old D1), went into the settings for the alarm & it stated drivers door SHUT, passenger doors "OPEN". even...

Getting really frustrated with this now :mad::mad::mad::mad: Right, pulled the Purple/blue wire from the MFU, now all the lights go out - interior & ignition light. So I know they go off! Tested the Driver door switch - when its out (door open) the key in bongs! When I test the other doors...

I'm going off the Key in the wiring fault finding book for the Discovery and S means 'Splice' H means junction connector, so I'm going from what I'm reading in the manual. BUT it doesn't say where the 'Splices' are. :( :(:(

The splices are in the diagram shown below in the red circles

I have checked, checked & triple checked the door switches so i'm 99.9% certain it ain't them o_Oo_Oo_O Could someone tell me roughly where I could find the splice(s) are please???? Think looking at the wiring diagram they are S261 & S2013.

Right now, not been able to do much recently but today - Cut the Purple & Blue wire from C205 plug to the MFU, and the interior & the ignition key lights all went out. Performed all functions of the MFU manually and everything worked apart from the interior lights & ign light (obviously). But...

I wish mine weren't, I've got the reverse problem :D:D:D To swap the box over is a little fiddley to say the least if you've got hands like shovels (like mine). Firstly disconnect the battery and leave for 20 mins to discharge, then undo the lugs that expose the fuse box under drivers...

Had another fiddle today, not cured it BUT!!!!! I thought balls to it!!!! What would happen if I took out the MFU completely?????? Well in the interests of research (again) I did that, powered up the battery and..............everything works??????? Well when I say everything Side lights...

I'm having the same problems at the moment, however my interior lights - rear wash wipe - HRW - ignition light are affected. It could be the MFU that is at fault as discool says, however if it is there are 2 versions of it - a black one AMR1280, and a cream coloured one AMR5360. It depends on...

Oh well, another theory out the window! All towbar electrics are ok, no shorts, no chaffed wires. This is starting to do my head in now:mad::mad::mad::mad::mad: Had the fuse box out today too, a little green corrosion but nothing that would cause that fault. Put it all back together, no change...