Member Since: 21 Oct 2016
Location: kent
Posts: 13657
Globetrotter448 wrote:
This may help for wire tracing. I think it will go large when you click on it, if not its in my gallery.
Hope u didn’t mind me pinching this one , many thks in advance
Click image to enlarge
23rd Jul 2019 1:49 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13657
Just trying them again to see if I can make them clearer , also in my gallery
23rd Jul 2019 1:54 am
reverendalc
Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43
i'm not sure exactly what to call the situation, whether it's emergency or crash... it's not limp mode though.
i get this warning on the stereo then all interior systems except the IC shut down:
i don't receive any limp mode warnings, any speed warnings, and i've done 100kmph with the vehicle in this state. at first i thought it was some sort of alarmed state and that the lack of crank was due to immobilizer, but the more it happened i began to notice the message on the radio every time.
i believe that this error is in response to the can bus failure(s) and the vehicle is assuming that something happened. i could be way wrong though.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
23rd Jul 2019 2:44 am
Globetrotter448
Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1783
well done gstuart with the pictures - I may nick your updated pictures from your gallery to keep for my use
23rd Jul 2019 2:58 am
reverendalc
Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43
also, i think the reason that i originally thought the disabling was alarm related was because when i got the truck the hood switch was bad and the alarm would actually go off often. i just jumped the connector for now... not likely that these things are somehow related?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
23rd Jul 2019 3:14 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13657
Globetrotter448 wrote:
well done gstuart with the pictures - I may nick your updated pictures from your gallery to keep for my use
Ur very welcome , indeed see there easier to see in my gallery
Glad there helpful
23rd Jul 2019 3:37 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13657
reverendalc wrote:
i'm not sure exactly what to call the situation, whether it's emergency or crash... it's not limp mode though.
i get this warning on the stereo then all interior systems except the IC shut down:
i don't receive any limp mode warnings, any speed warnings, and i've done 100kmph with the vehicle in this state. at first i thought it was some sort of alarmed state and that the lack of crank was due to immobilizer, but the more it happened i began to notice the message on the radio every time.
i believe that this error is in response to the can bus failure(s) and the vehicle is assuming that something happened. i could be way wrong though.
Hi
Have found some info ref that message , indicates a canbus issue or an ecu dropping out the network
Next time the car goes bananas on you, remove the negative lead on the battey Grab a MM and put it to ohm
Find the DLC (Diagnostic port) and probe pin 6 & 14. If everything is normal, then your MM should display 60 ish
If it displays 120 ish, then you know you have a canbus issue.
Now its time to slap on the investigation hat.
When I see 120 on the MM i look at the module communication network and split it in half. Trying to figure out in what direction i have to go to narrow down the search.
Go for the EAS module thats located in the A pilar Left hand side, a bit up there.
Now look for 4 wires in the same connector, they are Yellow with black trace and Yellow with brown trace. These are the Canbus wires you are after. Pin 16 to 19 is the canbus pins
Now use your MM and measure Pin 16 & 19, Should be 120.
Measure pin 17 & 18 Should be 120 ish.
find the pair that displays OL or something like that and look at the wiring diagram and see what direction to go from there
23rd Jul 2019 3:43 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13657
Also more searching and found this
pointing towards the instrument cluster ????
Wonder if there’s a local company to u that could test it
canbus can be tested by opening one plug and measuring the resistance, the exact value depends on how many ecus are connected to the circuit and what value resistors, 120 ohms springs to mind?
Other test is to measure the voltage of each can wire to a separate earth, again from memory 2.4 volts?
Last edited by gstuart on 23rd Jul 2019 3:56 am. Edited 1 time in total
23rd Jul 2019 3:51 am
reverendalc
Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43
i'm currently mapping out my approach, but after reviewing the electrical resource, it appears that the solenoids and valves are operated by the VDC not the EAS? curious.
but yes, the medium speed can bus issue... i've never troubleshot a can bus. many moons ago i used to install car stereos/alarms/tvs etc, but I moved on from that right around the time can bus came around, and my majority experience is in simple 12v trigger and resistorized input.
still learning a little as i go.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
23rd Jul 2019 3:52 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13657
Hi
Hopefully the above info may help ref the canbus
Sounds like ur on the right track seeing you’ve looked at all the other ecus , looms , etc
See above there’s a test for the can bus, I’ll also try and find some more info if I can
Think u can buy can bus testers????
23rd Jul 2019 3:59 am
reverendalc
Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43
interesting. i'm going to have to search for a more definitive method of testing can bus. i'm positive there's a problem with the can bus considering all of the errors from all of the ECUs.
i'd read that folks have had luck banging on the dash, etc, but i never did. i pulled apart the cluster and resoldered the main harness plug as another mentioned had fixed their issue, but no satisfaction. no change even. i've read others have sent off their IP and had it returned as "all tests ok" and i wonder if that fella from the link you provided, they just told him they found a fault and repaired it so they'd feel better about keeping his hard earned money?
good info though2010 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
23rd Jul 2019 4:06 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13657
Member Since: 22 Jul 2019
Location: seattle, wa
Posts: 43
after translating page to english, it looks like an aluminum shrouded OBD2 scanner. i normally fix laptops, with cars had a JTAG port!!!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
23rd Jul 2019 4:12 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13657
That’s out then
Will be interesting to see ref the instrument cluster, seeing others have had that message
Hopefully will be nice of narrowing it down, nothing like a challenge as they say
Plse keep us updated
Also hopefully some of the members here will have ideas or where to maybe look
Will keep searching myself to see if anything else comes up that’s useful to u
23rd Jul 2019 4:15 am
Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
reverendalc wrote:
after translating page to english, it looks like an aluminum shrouded OBD2 scanner. i normally fix laptops, with cars had a JTAG port!!!
I think you should put a multimeter across the battery and see what state your battery is in. Then run the engine and discover how much charge you're getting from the alternator at initial start up and whether this drops over 10 minutes or so. Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
I'm not scared, I'm outta here.
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