D2 Td5 auto cruise control and horn have quit.

[Markf]

So my cruise control and horn have decided to quit on me. Bastards.
Nanocom reports brake switch 1 and 2 are working correctly. Brake lights are working correctly. Horn fuse is OK but I replaced with a tested good one anyway. Changed the horn relay with the fog light relay and the ACE relay. No change.
Nanocom does NOT report any change in the status of the set/resume steering wheel switches. Nanocom also reports the changes in the status cruise control master switch correctly.
So this leads me to the conclusion that the clock spring is fubar even though the steering wheel radio controls work properly. Is that a reasonable conclusion or have I missed something ?

[trout1105]

I had the same problem a few years back .
I found that Both of the horns were RS and replaced them, Then magicaly the cruise control came back to life [thumbsupbig]
I have absolutely NO idea how this worked but it did.

[Tombie]

As said above...

Although my bets on a broken or corrded contact on the clock spring...

[Slunnie]

Check this out: Horn and Cruise Control Fix - www.slunnie.com (http://www.slunnie.com/phpBB3/viewtopic.php?f=7&t=38)


Well this was interesting and not what I expected it to be.

The CC started working intermittently and then it stopped working.

Later I noticed the horn stopped working also.

Checked the fuse - all sweet

Bought new horns, that wasn't the fix for the horns.

Swapped the relay - not the problem either.

Tested the horn buttons which were new - all good but no horn.

Earthing is good.

Shorted out the relay and boom the horns do work!

Must be the Rotary coupler behind the steering wheel - pulled the steering wheel off and it works fine.

Test out the pins in the fuse box for the fuse. All good.

Test out the pins in the fuse box for the relay. A problem.

Verdict, the earth pin, for the switching side of the relay is disconned somewhere between the fusebox and the rotary coupler.

On the wiring diagram this looks simple, look under the dash and its like that wire in the middle of a 1000 wire loom and all wrapped up tight.

Bypass surgery on the old girl with a new wire that runs directly from the fuse box on to the rotary coupler and now the horns are working

AND the cruise control is working again too! So it turns out, the CC also picks up switching "earth" from the horn circuit in the steering wheel to operate! FTW!

http://slunnie.com/coppermine/albums/userpics/10001/HornCircuit.jpg

http://slunnie.com/coppermine/albums/userpics/10001/CruiseControlCircuit.jpg

[Markf]

Check this out: Horn and Cruise Control Fix - www.slunnie.com (http://www.slunnie.com/phpBB3/viewtopic.php?f=7&t=38)

Thanks for that Slunnie - it give me more thing to try when we next have a break on our trip up north. The wiring diagram will be especially useful. Thanks to a Win10 update I have no rave unless I can get going in my iPad.

It’s a pity it decided to play up only after our enforced break at Woomera due to the SA lockdown. It could’ve packed up at the start of the lockdown then I would’ve had a week to play with it. We’ve got to Coober Pedy and our next spare time is Alice Springs.

I tested the horn by wiring it directly and it’s OK - bloody loud at close range though.

[Markf]

While we’ve been stuck in Newman waiting for a new front drive shaft which we can pickup on Monday I’ve been fiddling around trying to get the horn anc cruise control working. It transpired that the right side horn button got itself jammed up somehow. Pulling the whole assembly out and carefully reassembling it seems to have restored normal operation. Now that the cruise control switches report correctly on my nanocom I have high hopes for after I get the new drive shaft fitted.
I have today that getting a loctited steering wheel nut undone provides hours of “amusement “. [bigsmile1]

[AK83]

.... The wiring diagram will be especially useful. Thanks to a Win10 update I have no rave unless I can get going in my iPad.

.....

Hi Mark, probably not really 'required now' that you've figured out the electrical issue, but on the topic of RAVE not working.

Did you 'install' RAVE from the CD onto the PC?
If so, try this a a bit of a longshot to see if it works for 'ya.

In file explorer on Win10, click on the C drive on the LHS pane. Then search it for a file named cdlt010x (proper file name is cdlt010x.pdf) and hopefully it will find it somewhere on the C drive if you have it installed.
If you don't have it installed(fully) and needed the CD/DVD to view the manuals, then insert the disc and search that device instead of the C drive.
You technically don't need the RAVE program to work to see the pdf files.
if you do locate this pdf file, just open it with any PDF viewer program(I use SumatraPDF myself).
Once you know the name of the files that relate to the section of the manual you want to open, and those files are on the hard drive, it's easy to do manually.
And the file names kind'a make sense. so if you can find ellt file, then the workshop manual pdf for the D2 is called wmlt(and a number after that) .. wm(ie. workshop manual) lt(ie. D2) .. and I have no idea what the number is referring too.

I never installed the RAVE .. just copied all the files over to the hard drive and opened them as required.

Hopefully that's it for your niggles on your trip .. and from here on it's all smooth running. [thumbsupbig]

[scarry]

Every Cape trip i ever did with the D2's over the years,the horns filled with water,blew that fuse,and stopped the CC from working.....[bighmmm][biggrin]

[Markf]

In one of the D2 faceplant groups there is an iPad friendly RAVE in the files section. Seeing as I never travel without my iPad mini (drone controller screen, ebook repository, etc. ) it works for me. [bigsmile1]

[Slunnie]

In one of the D2 faceplant groups there is an iPad friendly RAVE in the files section. Seeing as I never travel without my iPad mini (drone controller screen, ebook repository, etc. ) it works for me. [bigsmile1]

Which group is that in? Far easier to travel with the ipad than the laptop! I'm guessing it is all in a single PDF file?

[AK83]

Which group is that in? Far easier to travel with the ipad than the laptop! I'm guessing it is all in a single PDF file?

At the risk of going way OT here .. Slunnie, if you have rave do a search for the file name I listed up there. Once discovered, you navigate to the FOLDER where that file is located. This folder will be called [lt] and it self is in a folder named [pdf].

All the pdf files related to the D2 are in this [lt] folder. They are cryptically named so not overly obvious as to what does what. The main clue to each file are the first two letter. el = electrical library. wm = workshop manual .. etc. cd = circuit diagram. So it's not obvious, but it makes sense. the numbers don't make sense, and some files are for LHD verhicles, or NAS, others are for RHD vehicles.

if you place the relevant pdf files in a folder on your ipad, you will have 'RAVE' for your D2 on the ipad.

Fairly easy to do, once you know the files. I have these files on my tablet for the same purpose too(ie. if travelling and need a circuit diagram .. and whatnot).

[Markf]

Which group is that in? Far easier to travel with the ipad than the laptop! I'm guessing it is all in a single PDF file?
It is, all 1529 pages of it. Of course I can’t find it at the moment but it’s called “land_rover_rave_discovery_2_workshop_manual”. Although it got it from faceplant it could well be at landroverresource.com too. The interwebby thing is as slow as an auto Td5 D2 towing a couple of tonnes uphill here. Maybe even slower. Searching for stuff is a trial. [smilebigeye]

[Bohica]

It is, all 1529 pages of it. Of course I can’t find it at the moment but it’s called “land_rover_rave_discovery_2_workshop_manual”. Although it got it from faceplant it could well be at landroverresource.com too. The interwebby thing is as slow as an auto Td5 D2 towing a couple of tonnes uphill here. Maybe even slower. Searching for stuff is a trial. [smilebigeye]

Try here.
Resources (https://discovery2a.com/Resources.html)

[Slunnie]

At the risk of going way OT here .. Slunnie, if you have rave do a search for the file name I listed up there. Once discovered, you navigate to the FOLDER where that file is located. This folder will be called [lt] and it self is in a folder named [pdf].

All the pdf files related to the D2 are in this [lt] folder. They are cryptically named so not overly obvious as to what does what. The main clue to each file are the first two letter. el = electrical library. wm = workshop manual .. etc. cd = circuit diagram. So it's not obvious, but it makes sense. the numbers don't make sense, and some files are for LHD verhicles, or NAS, others are for RHD vehicles.

if you place the relevant pdf files in a folder on your ipad, you will have 'RAVE' for your D2 on the ipad.

Fairly easy to do, once you know the files. I have these files on my tablet for the same purpose too(ie. if travelling and need a circuit diagram .. and whatnot).

Thats fantastic, I'll check that out and can rename the files to something less cryptic. Thanks for this.