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andy63



Member Since: 30 Jun 2023
Location: north east
Posts: 531

United Kingdom 
The 2.4 doesn't have the steering column sensor but does it have the yaw sensor.. That is also tied in with the whole stability control /traction control /abs set up and might be worth investigating.. If you haven't already done so..
Post #1000764 18th Jul 2023 6:47pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4216

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
There’s no yaw sensor on a 2.4. 2007 110 TDCi Station Wagon XS
Post #1000774 18th Jul 2023 7:51pm
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Grizwold



Member Since: 21 Jan 2023
Location: Lincolnshire
Posts: 16

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Tonga Green
Another quick update,
I've now replaced all abs sensors, still no joy and still the same symptoms.
I've just returned having had the car booked in with OFG Lincoln for a day to diagnose the fault, where they were going to road test it and arrange to book it in for the work to be done.
Pretty disappointed really as they've had the car for the day and all they can tell me is that there are no fault codes (which I already knew) and to keep running the vehicle until it breaks completely so they can see what's wrong - and a bill of £60 for my trouble - and told if I ever find what's wrong could I let them know as it may be useful in the future.
Anyway, I'm working on the principle its probably electronic so I'm going to check, meter and test all of the plugs and cables between the abs ecu and abs module. I'm then thinking of replacing the wabco abs unit, does anybody know if a replacement unit needs coding into the vehicle (OFG couldn't tell me) and if so can I do it with the GAP tool.
Thanks again for all your help, in this and all the other useful posts on here.
Cheers
Griz
Post #1053758 3rd Dec 2024 6:23pm
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Johan_B



Member Since: 20 Sep 2024
Location: Gothenburg
Posts: 33

Sweden 2008 Defender 110 Puma 2.4 CSW Tonga Green
Hi!
I have very similar symptom on mine, although a bit less, only happens when I make a hard right into my street and also traverse a road bump in the turn.
I do have some play in the rear wheel bearings so that could of course contribute but reading your story I realize you have checked all bearings and sensors so there must be something else.

Thinking out loud here so please correct me where I go wrong. The ABS system must have an algorithm to determine when to intervene. I would guess it is specific to the car model it is mounted in. Could it be that LR has too tight tolerances on this algorithm? Leading to some cars having this problem in extreme steering wheel angles?
Apart from wheel bearings, could the bushings in the rear also effect the performance? If the rear axle rotate just a bit too much as you take up speed, that could be translated to higher reading on one axle.
Could play in the driveline effect? The system is expecting movement in the wheels but it doesn't show up due to excessive play in driveshaft to drive member coupling, in the differential etc. Maybe this could also be amplified as one go over a bump in the road?

Where does the rear sensor read the pulses? Is it from the hub?
Post #1053781 4th Dec 2024 8:48am
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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 108

Canada 2009 Defender 110 Puma 2.4 SW Alpine White
I had a Disco 2 doing similar things only it was undriveable and I had to remove the fuse. I used the Lynx tool to diagnose that one sensor was “late” in starting up which triggered the system. I replaced all four sensors with ones with extra long cables to eliminate all the connections in the system. Fixed it right up.
Post #1053858 5th Dec 2024 12:37am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8051

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
Axles are meant to rotate at different speeds, it's unlikely to be bushes.

What are the main harness plug fitting like? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #1053861 5th Dec 2024 7:20am
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Johan_B



Member Since: 20 Sep 2024
Location: Gothenburg
Posts: 33

Sweden 2008 Defender 110 Puma 2.4 CSW Tonga Green
James, maybe you answered my question but just to clarify; If the axle casing rotate excessively due to worn bushes during acceleration, the sensors would too. At the same time the wheel rotate in the opposite direction. Thus one or two pulses could appear faster than they should, this could then be interpreted as loss of traction on the rear axle. Triggering the TC to intervene. At least in theory. I have no experience or knowledge of how much axle casing rotation actually happens so in practice this might never be an issue.

I don't want to cause confusion on the topic but I have a feeling that with our cars there is so much movement in suspension and slack in driveline that it can't entirely be ruled out as a cause. Especially as other avenues have been investigated and considering the cases where the problem happens. Slow driving, sharp turning and bumps in the road.
Post #1053887 5th Dec 2024 10:36am
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