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sabartnoc



Member Since: 28 Aug 2016
Location: Landes
Posts: 4

France 2010 Defender 110 Puma 2.4 SW Keswick Green
Dead defender fault codes
I am getting these fault codes coming up on my IID Tool

IPC-Instrument Pack
U0100-87 (50) Lost communication with engine control module/powertrain control module 'A' - Bus signal/message failure - missing a message
U3000-46 (50) Control module - System internal failure - calibration/parameter memory failure
B1A75-01 (50) Fuel sender 1 circuit - General failure information - general electrical failure
B1A81-64 (50) Internal trip switch circuit - Algorithm based failure - signal plausibility failure
U3000-17 (50) Control module - General electrical failure - circuit voltage above threshold
P1602-31 (50) Immobilizer/engine control module communication error - Frequency modulation/pulse width modulation failure - no signal
U0401-68 (50) Invalid data received from engine control module/powertrain control module - Algorithm based failure - event information
U2101-00 (50) Control module configuration incompatible

I also had glow plug supply short out and blow 60A fuse under seat.
Initially i connected GAP tool and ECU could not be found disconnected battery for a few days and was able to find it again but now will not start and seems to be having trouble communicating between Instrument/Immobiliser/ECU.
Any suggestions before i ripped off by the stealers, as i am in country france with little available help
Post #626360 23rd May 2017 4:10pm
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720

United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
Under the drivers seat (or possibly your passenger seat, opposite side to the battery), hidden inside the bundle of wires under there is a single fuse. I think this is the fuse for the engine management.
Post #626377 23rd May 2017 4:56pm
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Bushpig



Member Since: 07 Nov 2013
Location: Risca, Wales
Posts: 236

Wales 2012 Defender 110 Puma 2.2 SW Alpine White
After reconnecting the battery, did you press the 'lock' button on the fob 5+ times in order to re-sync it to the 10as unit?
The vehicle will not start if this is not done as the immobiliser is still activated... Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams

2012 2.2 Puma
Post #626514 24th May 2017 5:09am
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agentmulder



Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

Kuwait 
After checking the above my first steps would be to check the cabling and seating of all the connectors between the various parts: ECU, 10AS, fuses, under seat fuses, instrument binnacle etc.

Maybe some of that is redundant, but hey, at least you get a good look see ?

But hopefully someone will chime in with more knowledge will know exactly what all that points at...

You could read the messages, in which case it sounds like a dead ECU caused by some dodgy voltage where it shouldn't be, but one thing I've learned is that when a system is in an erroneous state, its messages can be just as erroneous. Solved the bowel problem, working on the consonants...
Post #626519 24th May 2017 6:12am
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olliecracker



Member Since: 18 Nov 2017
Location: Gloucestershire
Posts: 19

United Kingdom 2009 Defender 110 Puma 2.4 HT Keswick Green
Re: Dead defender fault codes
Hi Smile I'm currently getting all of these fault codes coming up on my Defender and it wont start at all Sad . Just wondering Did you find a Fix for it? - was it as simple as a fuse?

Cheers,
Ollie
Post #667904 30th Nov 2017 11:19am
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sam7345



Member Since: 10 Feb 2019
Location: Cornwall
Posts: 6

United Kingdom 
Hello,

I’m new to the forum but have had starting issues like yours for a long time and have never got to the bottom of it, as it has been intermittent. Now I have all the codes listed above and it will not start!

If anyone can shed some light on the situation I would be very pleased.
Post #757867 10th Feb 2019 9:09pm
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chrisc2306



Member Since: 02 Jan 2020
Location: Glasgow
Posts: 60

Scotland 2011 Defender 90 Puma 2.4 CSW Zambezi Silver
I’ve got all of these faults coming up on my 2011 defender and it’s periodically cutting out. Has anyone come up with a solution to it? Seems like a common fault
Post #854211 4th Sep 2020 10:09am
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ozzie1989



Member Since: 25 Feb 2009
Location: Wales
Posts: 282

Wales 2010 Defender 110 Puma 2.4 USW Bonatti Grey
I'd start with the above, check all fuses and then the wiring loom visually for any areas where it can rub on other components (e.g. back of engine near lifting eye). Now: 2010 2.4 TDCi 110 Utility Wagon
Then: 2004 2.5 TD5 90 Hard Top (X-Tech Edition)
Post #854291 4th Sep 2020 6:05pm
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Brendon



Member Since: 15 Aug 2021
Location: Saint Albans
Posts: 2

United Kingdom 2012 Defender 110 Puma 2.2 DCPU Aintree Green
I have the U0100-87 code. Would you mind telling me where the fuses are to check?
Post #941138 5th Feb 2022 4:58pm
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