DI alarm issues?

[scatterling]

Greetings,
I have a 99 D1 - it's been running fine. Saturday I removed the battery ( neg first) and when I reinstalled the cables the radio code showed up - no problem.
What is a problem is that the truck won't start. It will crank and stay running for a few seconds and then shut off. There is a beeping coming from under the dash behind the passenger glove box. Removed the glove box and got to the (what I can only assume) is the alarm ECU.

the check engine light is on if I turn key to second position and I am able to get the car to lock and unlock with the key fob. I cleaned the posts on the battery and cables and I can't see any fuses blown.

If it makes a difference the beeping from under the dash is constant i.e. as long as the battery is conected it will beep. I had the battery disconnected all night and this morning it beeps as soon as I reconnect.
Hopefully enough info given.

 

[Discotec]

Greetings,

If it makes a difference the beeping from under the dash is constant i.e. as long as the battery is conected it will beep. I had the battery disconnected all night and this morning it beeps as soon as I reconnect.
Hopefully enough info given.

The alarm ECU is a green box located near the kick panel and under the glove box in the passenger footwell. It normally disables the vehicle by cutting off the fuel pump, in other words it will allow cranking but no fuel.

The fact that your truck run momentarily indicates it is getting some fuel.......but on the other hand from my experience with alarm ECUs any strange noises coming out of them usually means they have gone walkabout......

Sounds like a case for Land Rover Testbook or similar diagnostics....

I don't know of any work around a DI alarm ECU and if anyone on here does they arn't telling....

I've had similar symptoms to yours and only a replacement alarm solved the problem......

I had some success once by placing the keyfob right next to the ECU and doing the lock/unlock thing..and then the truck started, you may try that.....

Sorry if this hasn't been a lot of help but there appear to be no easy answers with faulty alarm ECUs......

 

[osiristheclown]

Have you checked the inertia switch on the firewall to see if it tripped?

 

[ptschram]

Check the inertia switch. The 10-AS alarm will interrupt crank, fuel and injectors if armed and in alarm state.

 

[Discotec]

Thats a good one to add to the list........

 

[scatterling]

Ok, here goes.
So the box making the beeping noise is black not green. I can see a green box up near the kick panel but this one is just lying loose behind the glove box.
I came home tonight and made sure that the inertia switch wasn't tripped. It isn't.
It is still beeping so I decided to disconnect the wire clusters to the box one at a time. The small plug did nothing but the larger cluster made the beeping stop. Plugged it back in and noticed a fuse taped to the loom going to the black box. Took the fuse out and beeping stopped.
Now it gets wierd. I tried to start the truck and it started and runs fine. Shut it off and tried again with same results. When I put the fuse back in it starts beeping again and won't run.
Does it look like someone did some rewiring before or does the setup look normal.
http://picasaweb.google.com/scatterlingSA/D1#

 

[osiristheclown]

Doesn't appear factory, my truck has nothing that looks like that. Guessing it's an aftermarket alarm. Figure out how it was spliced in and repair the wiring to original and then take that beeping bastard and throw it in a pond.

My pond already has a 10AS unit and a GEMS ECU in it, so you'll need to provide your own pond.

 

[scatterling]

so it might seem rational that if I take the fuse out I could run it as is - I need to get to work tomorrow!

 

[osiristheclown]

I see butt connectors in the pics, I would ditch it completely. The last thing a Rover needs is more electric crap to fail.

 

[scatterling]

I just wonder why the beeping bastard was installed in the first place

 

[Two Cold Soakers]

Whatevew you do, don't pwess the wittle wed button.

 

[Discotec]

Thats not a Land Rover part.......nor is that a Land Rover fuse.....

If your truck now runs with the fuse removed, I'd leave the fuse out and let it go at that........

It all comes back to me now. A few years ago my pal bought a used, Dodge Ram 1/2 ton , it had serious starting and flooding issues......long story short, after spending many hours and 100's of dollars at the dealership, the mechanic slammed the door in frustration and lo and behold a mysterious black box fell out from beneath the dash.......It was an aftermarket alarm and the wiring job was terrible....anyway they removed the alarm and all turned out OK.....

 

[scatterling]

thanks Dave

 

[ptschram]

Rip that shit out of there.

I won't even begin to try to fix a truck until aftermarket alarms have been removed.

 

[KevLar]

Is there nothing molded or stamped on the box anywhere, such as a manufacturer name or model number or anything ? Not to say the other advice is wrong, but maybe if you can get something off the box, you can do a Google search and find out what it is and perhaps get the manual for it. Maybe you'd find that it's not even compatible with you Disco in the first place and that's why you are having problems.

 

[scatterling]

nope, no markings on the box at all. The truck was a California lease truck before it came to PA. Perhaps the lease company installed an additional immobiliser? - only rational thing I can think of. I disconnected it and the truck is back to normal again although the radio won't accept the code!!!

 

[Two Cold Soakers]

If you get the radio code wrong a couple of times, you need to shut off the power for a while.

Then punch it in again.

 

[KevLar]

nope, no markings on the box at all. The truck was a California lease truck before it came to PA. Perhaps the lease company installed an additional immobiliser? - only rational thing I can think of. I disconnected it and the truck is back to normal again although the radio won't accept the code!!!

Well glad the truck is working I'd pop that box open and have a look inside because... why not There are probably some relevant markings on the circuit board if you are at all interested in figuring out exactly what you have.
Kev

 

[ptschram]

The case looks as though it is a Clifford product. I doubt it is anything associated with the leasing company as those immobilizers have big warning signs on them indicating that they are deadbeat stoppers!

When removing these sorts of things, cut a wire, try to start the truck, repeat for each wire. Do this until you run out of wires, or find one that when cut will stop the truck from running.

 

[mbrummal]

Go back to the beginning of the wires when cutting/disconnecting them. The wires could have been cut and the box completes the circuit.