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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Just looked and the ms canbus is

Integrated Head Unit (Radio) Low Line IHU Audio and Video MS CAN BUS / MOST BUS
Integrated Head Unit (Radio) High Line IHU Audio and Video MS CAN BUS / MOST BUS

Don’t know if it’s relevant

Tired to line up the heading below for the chart


System Name / System Acronym / Group Name / Communication Type

   
Post #207197829th Jul 2019 9:22 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Just looked though all ur faults

Alas also swinging it here in guessing , but listed the permanent errors , alas again , don’t know if it means anything


TC lost comm with instrument cluster, intermittent, missing a message
AG (missed DTC in pic) lost comm with instrument cluster, permanent

ABS U0155 lost comm with instrument cluster, permanent

PA U0155 lost comm with instrument cluster, permanent
   
Post #207198229th Jul 2019 9:34 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Just seen this technical bulletin , alas don’t know if it’s helpful

https://www.4x4community.co.za/forum/attac...1389629632
   
Post #207204529th Jul 2019 1:57 pm
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reverendalc
 


Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43

United States 

Thanks for the info, I’ll give it a good read.

The ATC is in fact the allterrain module which is actually the entire switch assembly. The one I pulled from my truck is clearly a wrecker part, it didn’t have any OEM labels just a plain white sticker with some handwritten numbers. I am still receiving some weird errors and I’m not super confident in the one I installed as it had a latte dumped onto it when the RRS was wrecked.

I’m mailing off my IPC to turner diagnostics today or tomorrow and I guess I’ll focus on the air while I wait.
 2010 NAS Disco 4 HSE LUX HD petrol
1994 NAS RRC LWB V8 petrol - SOLD
2006 NAS Disco 3 V8 petrol
2006 NAS RRS HSE petrol - SOLD
2003 NAS Disco 2 SE7 petrol
2003 NAD Disco 2 SE - SOLD
2001 Disco 2 SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
1997 Disco SE - SOLD 
 
Post #207210829th Jul 2019 5:51 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

No probs and hope it helps in a small way

Seen that about the atc where a sunroof has been left open and module gets soaked , maybe that happened in the past , that’s if u have a sunroof that is, lol

Also here’s a full set of manuals if there any use to u

https://onedrive.live.com/?authkey=%21AMrv...9C85C7C171

Just need to press download when u open them

Please would u be so kind to keep us up to date of how it goes

Many thks and all the best for the week Thumbs Up
   
Post #207212029th Jul 2019 6:34 pm
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reverendalc
 


Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43

United States 

An open sunroof, a spilled beverage, a sloppy auto detailer with too much cleaner... lots of room for error there. I’m even less confident in the “original” unit seeing that it was clearly from a wrecker, and the replacement I snagged had quite a bit of coffee all over it. I popped it open and it looked fine beneath, but I couldn’t convince the switches and dial to open up for inspection. Whether the units are good or bad, I’m reluctant to break them.

What’s interesting is that my reservoir valve was knackered. The solenoid tested out fine, and the actuator has the correct effect on passage of air in various directions. Perhaps mine was the 1/1000 chance that the pressure sensor failed as that’s the only part I didn’t test.

It’s wonderful to see the truck up, except all the sideways dragging of the floor jack pulled my FL tire off the bead of the rim and it’s deflated. If it’s not one thing it’s another.

Turner Diagnostics is in the UK, so even with expedited (expensive) shipping I’m likely to be dead in the water for at least a week while it’s out. I snagged the gauge cluster from the other truck but then I realized it has 166k on the clock and I didn’t want to risk my truck adopting that mileage, and the parts truck was totally flat and I was unable to query/program the IC in the other truck.

Check it out tho:








 2010 NAS Disco 4 HSE LUX HD petrol
1994 NAS RRC LWB V8 petrol - SOLD
2006 NAS Disco 3 V8 petrol
2006 NAS RRS HSE petrol - SOLD
2003 NAS Disco 2 SE7 petrol
2003 NAD Disco 2 SE - SOLD
2001 Disco 2 SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
1997 Disco SE - SOLD 
 
Post #207215829th Jul 2019 8:11 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Hi

Great you’ve managed to snag those parts , alas though I think the modules , etc have to be all coded to ur motor , don’t know the ins and out of it I’m afraid , apart from the valve blocks which don’t need any coding

The alarm system is in the passengers fuse box

Chuffed that you’re making progress and at least with the instrument panel being checked seeing a lot of the canbus goes through it at least then ur know 100% it’s sound

Plus at least waiting for it to come back u can step back and have a break and plan ur next plan of action

Keep up the good work buddy Thumbs Up
   
Post #207217929th Jul 2019 9:02 pm
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reverendalc
 


Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43

United States 
Plot twist

Not sure how good the work is... it’s definitely work though.

I backed the truck out of the garage to take it for a spin, and it was behaving very strangely. I had no errors or warnings on the dash, but it wouldn’t go very fast at all and the engine was in very high RPM. It was actually very disappointing because it drove so well before.

Now I’m not sure what to think. The EAS won’t raise or lower, and the rear end is skyjacked. When I clear the suspension fault, it faults again immediately and the fault is red now not amber. I’m still getting tons of lost comm DTCs and CANbus errors, but the RLC is only saying C1A00 software error system deactivated and there’s no sub code attached.

One step forward two steps back.

I’ve reattached the “original” ATC module but no change.
 2010 NAS Disco 4 HSE LUX HD petrol
1994 NAS RRC LWB V8 petrol - SOLD
2006 NAS Disco 3 V8 petrol
2006 NAS RRS HSE petrol - SOLD
2003 NAS Disco 2 SE7 petrol
2003 NAD Disco 2 SE - SOLD
2001 Disco 2 SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
1997 Disco SE - SOLD 
 
Post #207220730th Jul 2019 1:31 am
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reverendalc
 


Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43

United States 

Well I rewrote the CCF after reinstalling the “original” ATC computer, I don’t know if that was necessary for the air... the error was “system deactivated” so I went in with the nanocom and “activate(d) EAS” and I’m back to my familiar amber suspension fault. I have NEVER been so happy to see a familiar fault!

I am down to a CONSISTENT 20 DTCs... which really sounds Censored , but that’s just under half of the 41 I used to get. It’s the same 20 every time... a crap load of comm errors from the IPC, and then various other modules complaining about losing comm with the IPC. I’m going to chalk those up to the CanBus or IPC itself, and I’ll not fuss with the bus until I get my IP back from turner.

The only variable here is the RLC which is throwing one of two codes:
Exhaust valve
Or
Gallery pressure not decreasing

I think the particular code depends on what it was trying to do when it failed, but I just motored around the neighborhood and it’s driving great again, but it looks like a rat rod, full extension in the back and only 1.4” fender clearance in the front.

I will add that I’m getting some really stupid readings from the nanocom when I check inputs: one wheel is reading way off from the others... but the 4x4 Display shows all wheels correctly. Not sure how to correctly read the output but I’ve attached a photo. I still cannot query the valves I just get the comm error.





 2010 NAS Disco 4 HSE LUX HD petrol
1994 NAS RRC LWB V8 petrol - SOLD
2006 NAS Disco 3 V8 petrol
2006 NAS RRS HSE petrol - SOLD
2003 NAS Disco 2 SE7 petrol
2003 NAD Disco 2 SE - SOLD
2001 Disco 2 SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
1997 Disco SE - SOLD 
 
Post #207220830th Jul 2019 2:21 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Hi

I think it may be better to wait until u get ur IC back

In the mean time have a look at those connectors behind ur front wheel arch liner

Also did u see the bit about the radio ms can bus errors

Maybe the system is getting confused when swapping ecus on and off

Also with second hand parts there’s no way 100% to ensure there ok

Wouldn’t hurt to check the front valve block as well, if it’s not exhausting maybe it’s not getting the message to vent , possibly faulty pressure sensor / bad wire front wheel arch ?

Unfortunately think like everything it’s best to at least physically check items so u can ensure there sound

Once the ic is back and refitted can then check ur suspension heights as in the mean time u know what the score is with the front connectors and valve block

Hope that helps
   
Post #207221130th Jul 2019 4:24 am
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reverendalc
 


Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43

United States 

agreed. i'm actually a little happy to ship that off, because then i'll be forced to tinker with some other projects while i'm stalled waiting. i've got a second hand 8000lb warn winch that needs a little refurb and i'm tired of looking at it NOT on my disco.

i checked the wiring harness behind the wheel, all is well, as well as the connector block behind the rear wheel (full extension means i can just reach in there and fuss with it!

curiously also, before i resign for the 2-3 weeks i'll be without the IPC...
the truck won't lower. i used the nanocom to deflate the airbags, and the valve blocks made some loud rhythmic clicking for a few minutes, and then the nanocom happily informed me that deflation was complete... despite the fact that my truck hadn't lowered 1cm.

i've read about the compressor exhaust silencer, where can i find that?
 2010 NAS Disco 4 HSE LUX HD petrol
1994 NAS RRC LWB V8 petrol - SOLD
2006 NAS Disco 3 V8 petrol
2006 NAS RRS HSE petrol - SOLD
2003 NAS Disco 2 SE7 petrol
2003 NAD Disco 2 SE - SOLD
2001 Disco 2 SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
1997 Disco SE - SOLD 
 
Post #207221230th Jul 2019 4:31 am
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1771

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

maybe already on the stops Embarassed
  
Post #207221330th Jul 2019 4:35 am
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reverendalc
 


Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43

United States 

i don't understand
 2010 NAS Disco 4 HSE LUX HD petrol
1994 NAS RRC LWB V8 petrol - SOLD
2006 NAS Disco 3 V8 petrol
2006 NAS RRS HSE petrol - SOLD
2003 NAS Disco 2 SE7 petrol
2003 NAD Disco 2 SE - SOLD
2001 Disco 2 SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
1997 Disco SE - SOLD 
 
Post #207221430th Jul 2019 4:36 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Sounds like a good plan with the winch Thumbs Up

The exhaust valve is on the compressor itself , save u searching again here’s the link for the suspension pdf

http://media.disco3.co.uk/gallery/albums/u...iption.pdf

Apologises can’t remember u had the hitachi compressor didn’t u ,

On the dryer cap is the exhaust line, pull that off to see if it will vent , also in the boot is the air compressor air inlet filter, looks like a black canister

So on the compressors dryer u have the air inlet and the other is the exhaust

Exhaust on the compressor is a solenoid, opened electronically when the ecu reads the pressure or vehicle is turned off then vents through that exhaust line

Ur see a big white canister at the back of the vehicle , never know it could be blocked not allowing it to vent ???

Indeed see how u get on with that exhaust pipe first please

Great the front is all ok

Always happy to help but don’t know how useful the info is
   
Post #207221530th Jul 2019 4:40 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Globetrotter448 wrote:
maybe already on the stops Embarassed


Hiya

Op has vented the system via his nanocom but the back is staying up high , front low so hasn’t budged from before he used the nanocom

Am Wondering if the exhaust line on the back of the dryer could possibly be blocked
   
Post #207221630th Jul 2019 4:42 am
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