Member Since: 13 Sep 2011
Location: Essex
Posts: 593
I don’t think that anything inside could have got wet, certainly not in the steering wheel area. No sunroof either!
These faults have come back:
VIN: HIDDEN
L319 - Discovery 4 2016
Vehicle scanned on 08-02-2021 17:51
Using IIDTool BT V3.0 B2712
BCM-Body Control
B1C77-13 (2F) Rear wiper relay coil circuit - General electrical failure - circuit open
( on 06-02-2021 16:29:44 at 36501 mi )
U0184-00 (28) Lost communication with audio unit
( on 06-02-2021 16:29:44 at 36501 mi )
B1C44-67 (6C) Rear wiper park position switch - Algorithm based failure - signal is incorrect after the event
( on 06-02-2021 19:31:32 at 36519 mi )
B137F-17 (2F) Steering wheel - Left switch pack - General electrical failure - circuit voltage above threshold
( on 06-02-2021 16:31:22 at 36501 mi )
CCM-Cruise Control
U0401-81 (28) Invalid data received from engine control module/powertrain control module - Bus signal/message failure - invalid serial data received
( on 06-02-2021 16:31:23 at 36501 mi )
DDM-Driver Door
B1164-15 (2F) Right mirror heater output - General electrical failure - circuit short to battery or open
( on 06-02-2021 16:31:32 at 36501 mi )
HCMB-Headlamp
U0415-00 (28) Invalid data received from ABS control module
( on 06-02-2021 16:31:16 at 36501 mi )
IPC-Instrument Pack
U0184-00 (28) Lost communication with audio unit
IPMB-Camera
U0140-08 (2C) Lost communication with body control module - General failure information - bus signal/message failure
( on 25-05-2016 04:46:35 at 73 mi )
PCM-Engine Diesel 3.0L
U0405-86 (2F) Invalid data received from speed control module - Bus signal/message failure - signal is invalid
( on 06-02-2021 16:31:16 at 36501 mi )
The only one I know about is the rear wiper - I pulled the fuse from that to stop it coming on when in reverse!
I switched on forward alert today and it let me increase the distance but not decrease the distance. No cruise either. The fact that the decrease distance button is broken suggests faulty switches or cabling to me but the other faults linked to ABS data concern me.
*Edits to tidy the IID data formatting
8th Feb 2021 6:56 pm
RATA1
Member Since: 27 Feb 2020
Location: Somerset
Posts: 353
Hello,
The only way to prove it is or isn't the CCM module I guess is to remove fuse 6P and 7E then revert your CCM CCF config back to original and go from there.
If the cruise buttons work with the original CCF and no ACC and still throw the error then could be a faulty switchpack. 2 year warranty from LR. Is it possible that the wiring at the CCM has come loose or had any water ingress? Been fording lately?
Do the volume and seek and horn on the left work as there are a few audio coms issues too.
Yellow is the 4 way - C2284, green is the 10 way - C2283.
Headway +/- being the ACC distance.
Why would the headlight be moaning about the ABS?
HCMB-Headlamp
U0415-00 (28) Invalid data received from ABS control module
( on 06-02-2021 16:31:16 at 36501 mi )
Battery OK?In today's world, if you contribute something, you don't contribute enough. If you contribute nothing, you receive everything.
2014 Discovery XXV
1961 Series 2
10th Feb 2021 12:00 pm
hickersb
Member Since: 30 Nov 2017
Location: Denver CO
Posts: 4
Looking at possibly picking up a 2014 myself (actually an XXV like yours, Rata) and was curious about retrofitting ACC...
Is it confirmed that ALL of the 2014s are missing both the wiring and the programming to accept ACC?
Just wondering if it is something that varies by specific vin or by country.. I came across what looks like the electrical reference (in Italian) for VINs 699716 - 731300 and it did show the sensor connector C2025 present...
I guess another question for you RATA, is, if you think the ECU itself is missing some code, would you be able to flash your actual engine ECU to a newer version? (Or, I see an ECU from a 2016 on Ebay for about $150).... Just thinking out loud...
17th Feb 2021 8:18 am
RATA1
Member Since: 27 Feb 2020
Location: Somerset
Posts: 353
Hello,
First thing to check on an older model is if the fuses are there 6P and 7E. Most likely the 6P is but the 7E is not which means you probably don't have the wiring or the simple ability to add it plus where we are with "enabling" it.
Yes the Italian wiring diagram shows it and this was one of my sources as does the logical diagram I posted. ACC might be different for different markets and I would have thought the USA would have been one really.
If we ever find one pre 2015 VIN with it then a comparison can be made to the CCF and FW loaded maybe.
Flashing the ECU with different FW is my thought combined with CCF changes, be that the BCM, engine etc. but replacing it with a used one, as far as I know, isn't an option as it is locked to the car.
I believe you can flash the ECUs all day long with a Nanocom from their selection on the Genisys website and if not any good flash back the original or latest worker. Where as the IID (non Pro) needs individual files. Not done it and need detailed info on rollback/DR before I try on mine. Awaiting Pat@GAP but to be honest it is too wet and cold here at the moment to be messing about.
From my previous posts you can see that the car that had it from factory was a build date of March 2014 but VIN of 2015. Not too much difference in terms of FW versions - but those that are in it are 2015 (F) so not too much to change for a brave soul...In today's world, if you contribute something, you don't contribute enough. If you contribute nothing, you receive everything.
2014 Discovery XXV
1961 Series 2
18th Feb 2021 1:02 pm
mjom89
Member Since: 13 Sep 2011
Location: Essex
Posts: 593
RATA1 wrote:
If the cruise buttons work with the original CCF and no ACC and still throw the error then could be a faulty switchpack. 2 year warranty from LR. Is it possible that the wiring at the CCM has come loose or had any water ingress? Been fording lately?
Do the volume and seek and horn on the left work as there are a few audio coms issues too.
A small update. I decided to pop the airbag out and check everything out inside the wheel as I had a few different scenarios since my last massage. After finding nothing and rebuilding, it worked well for a single journey but not since.
Cruise works at the moment, adaptive too. All other volume, seek, horn buttons etc work too. Forward alert also works. I can increase the follow distance but the second I try to decrease it, cruise is cancelled and I cannot use it again for the journey. This was happening before I took it apart and checked the wires and connections.
I haven't been fording and I do not suspect that the CCM harness could have become loose. I really suspect the switch pack! I have my old one so I think I will disable adaptive as suggested, fit the old switch pack and see if the error relating to voltage in the switch pack clears. Do you think that is the best next step?
22nd Feb 2021 5:54 pm
Dondiddy
Member Since: 26 Dec 2019
Location: Hamilton
Posts: 309
Yes I would do as suggested. Change the CCF back to remove the ACC (and remove the fuse) and see if everything works ok. You should leave the new switchpack in place to see how it goes. If still getting issues then change back to the original switchpack and see what you get. Good luck!
25th Feb 2021 8:13 pm
panamaw
Member Since: 13 Mar 2021
Location: California
Posts: 1
Hello All! Has anyone successfully retrofitted ACC on an early Discovery 4?
I have a 2010 US market and even after reading through this thread and here (https://www.disco3.co.uk/forum/topic74744.html) it's not clear to me which radar/ecu combination is appropriate.
It seems the later D4 (15-16) and RRS (12-13?) had the integrated radar/ECU (slim, 18 pin connector), but can that be used an an earlier model D4? Or will I need to get a separate radar and ECU, as in the earlier L320 model years?
Cheers!
13th Mar 2021 6:34 pm
Ceekay
Member Since: 17 May 2009
Location: Bury
Posts: 2089
Does anyone who has done this mod or stripped a steering wheel down know if the adaptive cruise control buttons or the heated wheel switch can be purchased separately and added to the switch packs or do you have to purchase a whole switch pack with all the steering wheel controls on with the adaptive switches and heated wheel switch already attached?D4 HSE Lux MY16 Club Waitomo
D3 HSE MY06 missing her still…
27th Mar 2021 5:26 pm
Famousfive
Member Since: 12 Aug 2014
Location: Southampton
Posts: 1831
Member Since: 17 May 2009
Location: Bury
Posts: 2089
Cheers for that
When i stripped the steering wheel it looked like they just attach, there is even blanking plates that screw off where the switches fit. Obviously wrongly assumed the wiring from the there would connect to the cars loom
Never mind I suppose i have a black pack steering wheel to put back up for sale then if anyone is interested D4 HSE Lux MY16 Club Waitomo
D3 HSE MY06 missing her still…
28th Mar 2021 12:14 pm
Famousfive
Member Since: 12 Aug 2014
Location: Southampton
Posts: 1831
Member Since: 17 May 2009
Location: Bury
Posts: 2089
Many thanks D4 HSE Lux MY16 Club Waitomo
D3 HSE MY06 missing her still…
30th Mar 2021 10:12 pm
RATA1
Member Since: 27 Feb 2020
Location: Somerset
Posts: 353
Had some time today so revisited this with another tool to help.
I re-enabled the ACC in the CCF with the IID tool and shut the car down. Removed the IID and connected up my Nanocom Evo to run the calibration routine.
It showed me two errors that the IID does not;
"Communication error 9"
and
"Communication error 2"
Have no idea what these errors mean but it sounds like whatever is trying to send the calibrate message to the radar can't. I don't know if it is the tool (IID/Evo/SDD/other) that constructs the message to put on the CAN bus and expects the response from the radar in which case it should work a-la CAN bus - or the tool tells the BCM/other controller to do so, and it can't as it won't know what the ACC is and this is what the error is telling me.
It is failing on the calibration here, not because of the engine type/ECU IMO - unless it is that that is constructing/sending the message.
Those incompatibilities between ECU components on the bus would be present if/when the radar was sending messages once calibrated and throw up lots of errors that aren't handled but the actual radar ECU should be able to perform or enter calibration mode autonomously as that is the beauty of the CAN bus - you just add bits that do their own thing and spew data for other nodes to use.
Happy to be guided or corrected and open to suggestions
Cheers.In today's world, if you contribute something, you don't contribute enough. If you contribute nothing, you receive everything.
2014 Discovery XXV
1961 Series 2
15th Apr 2021 8:18 pm
Dondiddy
Member Since: 26 Dec 2019
Location: Hamilton
Posts: 309
Not had any personal experience but a bit of research suggests that when the canbus system is giving a communication error you need to perform a vehicle integrity test with SDD in order to help identify whether there is a wiring issue or the fault lies in an Ecu or other hardware. An added problem however is that this is a mod that is not working and not the original system that has developed a fault. As the radar unit is quite a sensitive unit and easily damaged by bad handling etc do you have another unit to try to eliminate that as an issue. You would need to reflash it again but I assume that you can use the file from Gap more than once. Good luck!
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