Discovery I Talk about the Land Rover Discovery Series I within.

More than one inertia switch?

Thread Tools
 
Search this Thread
 
Old May 24, 2012 | 09:22 AM
  #11  
Danny Lee 97 Disco's Avatar
Joined: Mar 2010
Posts: 5,584
Likes: 7
From: Pittsburgh PA suburbs.
Default

I doubt she would be of much assistance as her and the Prince may ride in one, but they never go sailin thru the air like you and your buddy were doing. They just do not know how much fun these things can be when you let your hair down like that.

Could you see them out wheeling?
 
Reply
Old May 24, 2012 | 10:11 AM
  #12  
ValveCoverGasket's Avatar
Winching
Joined: Aug 2011
Posts: 600
Likes: 1
From: northwest
Default

i dunno i saw that one movie about the queen a few years ago, and she was driving range rovers through creeks. i can only assume that wasnt a movie dramatization haha
 
Reply
Old May 24, 2012 | 10:57 AM
  #13  
wheelgarage's Avatar
Recovery Vehicle
Joined: Aug 2009
Posts: 1,033
Likes: 4
From: SF Bay Area
Default

Originally Posted by Spike555
It is your hood, it is popping open on the hard landing.
Open your hood, there is a button, it is part of the alarm and will set off the hazards if the hood is messed with.
Happens all the time, unplug it, or adjust it, your choice.
Yup...tried that. It still went off with it unplugged. I even forgot it was unplugged for the past few months...
 
Reply
Old May 24, 2012 | 11:05 AM
  #14  
wheelgarage's Avatar
Recovery Vehicle
Joined: Aug 2009
Posts: 1,033
Likes: 4
From: SF Bay Area
Default

Originally Posted by psykokid
Check and make sure the alarm ECU is solidly mounted to the chassis. If its banging around near where it lives then that could be giving you false inertia readings. Other than that your other option is to replace the alarm ECU.
Originally Posted by Paul Grant
The alarm ECU is a green box that is mounted on a thin metal plate beneath the cruise contol ECU, ABS ECU and Window Lift ECU with a few 7mm bolts. It's not mounted anywhere near the chassis.
Okay...I am going to get some foam and encase the damn thing it in. Or, I can try bubblewrap....

I went to the park yesterday to pull my buddy and his Jeep out of the mud pit. As soon as I got in the 4x4 section and I hit the first big rut....damn thing went off again!!!! CALL THE QUEEN!!!....
 
Reply
Old May 27, 2012 | 11:47 AM
  #15  
wheelgarage's Avatar
Recovery Vehicle
Joined: Aug 2009
Posts: 1,033
Likes: 4
From: SF Bay Area
Default

I think I found the problem. The mounting tab was broken off the alarm unit was. Every hard bump, you can see how much the box moved. I tie-strapped it securely.

Going to hit some ruts today and see if it goes off!!!

Name:  2012-05-26_18-26-54_12.jpg
Views: 8208
Size:  122.5 KB
 
Reply
Old May 28, 2012 | 11:32 AM
  #16  
psykokid's Avatar
Thread Starter
|
Mudding
Joined: Jul 2011
Posts: 239
Likes: 0
Default

HA! i figured it was something like that.. Glad to see you tracked it down and got it sorted, let us know how the field repair goes.
 
Reply
Old May 28, 2012 | 01:03 PM
  #17  
wheelgarage's Avatar
Recovery Vehicle
Joined: Aug 2009
Posts: 1,033
Likes: 4
From: SF Bay Area
Default

Originally Posted by psykokid
HA! i figured it was something like that.. Glad to see you tracked it down and got it sorted, let us know how the field repair goes.
I tried it yesterday and it seems to have worked! I hit some pretty hard ones (I think I got some air )..and nothing!!
 
Reply
Old May 28, 2012 | 02:23 PM
  #18  
Savannah Buzz's Avatar
Super Moderator
Joined: Jan 2011
Posts: 16,322
Likes: 88
From: Savannah Georgia
Default

Yeehaaa! Ride 'em cowboy!
 
Reply
Old Sep 25, 2013 | 03:51 PM
  #19  
pathas's Avatar
4wd Low
Joined: Sep 2013
Posts: 11
Likes: 0
Default 1995 discovery alarm ecu bypass

Originally Posted by geek_IM
Not the hood.

I can confirm that it is the alarm ECU as well. Green box mounted under the glovebox above passenger footwell. At some point before I got it the mounting tabs were broken off of mine and it was taped up in there. I had to take it down to get to the relays when I reset the codes for my ABS using the paperclip method. Well, I left it dangling down for a few days in the passenger footwell before I re-mounted it, and every time my wife/kids touched it with their feet the hazards would come on and I would have to cycle the key to get them to turn off.
Underneath the glove box mounted on the side of the interior wall is a rectangular box with a black cable leading into it and a 6 pin white multi-plug (more about this later) and a black multiplug. This black box is your alarm ECU. If this thing is not working right various things can happen (they've all happened to me). First - your truck won't start. No cranking-no nothing. Or when you put the key in your door to unlock the horn will go off and the hazards will flash. Or when you are driving along, suddenly the hazard lights will come on. Or if it rains and you left your passenger window open the car won't start and then later at 2:00 in the morning your horn will go off arbitrarily. Yes - this has all happened to me. (I did have a bad starter and replaced it). But when I thought there was an alarm problem I had dismounted the alarm ECU and left it dangling. This was after I had taken the orange and black wire that goes in pin 1 of the white multiplug and connected it to the orange and black wire that goes in pin 2 in a failed effort to bypass the alarm ECU. After I replaced the bad starter I reconnected the pin 1 and pin 2 wires. But I never remounted the alarm ECU and I never secured the wires together with electical tape or anything like that - so the ECU has just been hanging there for a month or two. Intermittently over the last couple months when I'm driving and my son is in the passenger seat the hazards would go off. I couldn't understand why - but when I shut the engine off and then restarted - the hazards would go off. I now know that this happened because my son's big feet were kicking the alarm ECU unbeknowst to me and causing the inertia switch to activate the hazards. Last week after a heavy rain and I had left the passenger window down the truck wouldn't start. Later in the day after it warmed up the truck started. But - the frikkin horn blasted away at various intervals all night long until finally it stopped. This was the moisture messing with the alarm ECU. Today I couldn't start the truck (no rain, but my Son was in the passenger seat this morning). When I looked at the wires I talked about earlier I noticed that the wire leading to pin 1 had been disconnected. (probably kicked apart by Sam's big feet). When I reconnecte them - still the engine wouldn't start. So now I'm thinking I have a bad ECU (when I shook it it made a buzzing noise). So TO GET THE TRUCK STARTED I BYPASSED THE CPU which serves as a ground for the neutral safety switch by taking the orange and black wire that leads to pin one of the white multiplug and grounding it to the metal bracket below the glove box. Yes - this simple fix now allows the neutral safety switch circuit to be completed OUTSIDE OF THE ALARM ECU. So, the alarm ECU will NO LONGER PREVENT MY TRUCK FROM STARTING. If I remove the wire from its ground on the metal bracket the truck won't start. If I attach the wire to the the metal bracket and ground it the truck will start. I plan on getting a used alarm ECU and taking the truck to an electrical shop to have it replaced. But for now the truck starts fine and the horn works fine.
 
Reply
Old Sep 25, 2013 | 04:18 PM
  #20  
EricTyrrell's Avatar
Pro Wrench
Joined: Sep 2011
Posts: 1,526
Likes: 18
From: Oregon
Default

My alarm definitely goes off if I'm driving on a rough road. I don't have locks anymore but the lights flash. Only way to get it to stop is shutdown and start it back up.
 
Reply



All times are GMT -5. The time now is 12:44 PM.