Member Since: 14 Nov 2024
Location: Vännäsby
Posts: 8
SYSTEM FAULT SPECIAL PROGRAMS NOT AVAILABLE
Hi
I have a irritating problem with my disco3
This message pops up on start and the car also gets limp mode. No warninglight on dash just the message.
I get codes from my icarsoft reader
U0401-94
U0416-94
Once in a while it starts normal but after a while the message pops up and im back in limpmode.
I have changed battery and checked some connectors but nothing have made a difference. Suspension gerbox, handbrake and high/low works perfect.
Anyone have ideas?
Click image to enlarge
14th Nov 2024 11:24 am
Wilsonator77
Member Since: 17 Nov 2024
Location: Lincolnshire
Posts: 2
Hi mine has just started doing the same, did you find what the issue is
17th Nov 2024 2:56 pm
AntonLR3
Member Since: 14 Nov 2024
Location: Vännäsby
Posts: 8
Im still in the dark with this. Im working on it every day so hopefully ill find the issue soon.
17th Nov 2024 6:13 pm
loanrangie
Member Since: 18 Jun 2017
Location: Melbourne
Posts: 705
Try a better reader like a gap tool, should be some hard codes if you are getting communication errors.
18th Nov 2024 2:49 am
AntonLR3
Member Since: 14 Nov 2024
Location: Vännäsby
Posts: 8
I have read out the codes with 3 different readers and this is the codes i get. Sadly i have 700km to the closet Land Rover dealer so that is not an option.
18th Nov 2024 7:58 am
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6415
try doing proper hard reset
mostly those codes are BCM related hard reset might help or solve but not guarantied
if hard reset does not improve things I would start looking at all connectors going to BCM engine ECU and all more exposed for oxidation of pins and stuff of clearly visible harness damage
have you checked you charging level when car operates normally
good luck
G
18th Nov 2024 8:22 am
AntonLR3
Member Since: 14 Nov 2024
Location: Vännäsby
Posts: 8
Hi
I have already done the hard reset several times, it does not cure the system fault. It is totally random when it comes on or not.
Some times i can start the car with no fault warnings at all (still in limp mode) and drive around with it and the warning message dont appear until i twist the drive mode selector.
18th Nov 2024 8:26 am
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6415
maybe gear selector has the issues than since it is kinda directly resulting in fault appearing?
18th Nov 2024 9:32 am
AntonLR3
Member Since: 14 Nov 2024
Location: Vännäsby
Posts: 8
I have been thinking so too, i have a used center console on the way. I will try to swap it out and see if it works
I have been thinking about the instrument cluster too, it might be faulty.
18th Nov 2024 9:34 am
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6415
gear selector gathers lots of crap from users and activity around it and not waterproof so i guess if water ever got there at all would defo cause issues
G
18th Nov 2024 10:31 am
Wilsonator77
Member Since: 17 Nov 2024
Location: Lincolnshire
Posts: 2
Hi mate like I said mines doing the same thing so I bought a icarsoft v2 cleared all codes and went into limp mode and same message as yours and code came out as p2290 quick google and appears fingers crossed just the fuel filter well I’m hoping it’s that’s as i have never changed it yes since i bought it 8 months ago but was on the to do list 🤞🤞🤞
18th Nov 2024 7:25 pm
Proren46
Member Since: 19 Nov 2018
Location: Carlucet
Posts: 3
I get the same message on start up, but doesn't seem to go into limp mode fortunately.
So what exactly are the "special functions" that aren't working???
2nd Dec 2024 9:45 am
L1ft3d
Member Since: 15 Dec 2017
Location: Essex
Posts: 17
I would start by checking the TCM behind the battery and then check the plugs behind the passenger footwell behind the bonnet release as I had found a few plugs with light corrosion. The TCM seemed to be the main source of my dash lighting up.
This was the state of my TCM.
Click image to enlarge
2nd Dec 2024 11:11 am
Oxford-boy
Member Since: 07 Sep 2015
Location: Oxford
Posts: 1122
How good is the battery on the vehicle?Jim
2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone
2nd Dec 2024 11:18 am
zig
Member Since: 09 Sep 2005
Location: Scotland
Posts: 650
On starting the engine the starter motor takes a lot of current which causes the voltage to dip. As I understand it when the key is turned to position II start-up built in test will be run, which will flag up faults if the voltage is low, thus it is best to allow the start-up built in test to complete before turning the key to position III and engaging the starter motor. Thus if you turn the key to position II and wait say 10 second before turning the key to position III does mak a difference to the error messages you receive?
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