Discovery 2 ABS warning lights

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every tool with it's advantages...be aware, nanocom has some bugs especially in the SLABS area and u need a laptop for it all the time...the a lot more than hawkeye is programming used keys and calibrating ride height
 
from what i have read the new evollution has a touch screen that allowa all the work to be done from in the car. No laptop needed. Also allows for real time monitoring of the engine gearbox and ABS sensors. Will allow you to force operate certaine relays valves and actuators. allows the setting up of the SRS and resyn of the speedometer. the fireware is being updated all the time and new options will be added soon. Best part when i get a disco 3 it will only cost me £50 to get the unlock code that is also not VIN registered to one car.
I have emailled blackbox for a total price including codes and postage will update what I get back.

Anyone know were else I can purchase one from
 
I begin the 'three amigos' investigation on my '52 Disco 2 this week.

Only occurs very intermittently (once every 100 miles or more), seems to be triggered when braking (twice even just stationary) and at slow speeds.

Pads and discs are quite worn but was hoping to hand off for a while as this job isn't inexpensive.

Might try a fluid change first and sensor connector check for fault ;-) Anyone know how to identify the ABS sensor connectors/where they are?

Looking at nanocom too, but £350 is quite an outlay...

Lea
 
Hi all,
There must be more to Discovery ownership than 3 pesky warning lights...
I have read that brake pads can rattle, causing this?

My first encounter was when I fitted a front wheel bearing to our 2000td5, shortly after the famous 3 came on.
O ring duly removed, they stayed away for a couple of years, but the bearing failed!shoud have sealed it better.
Second bearing, all lovely until I did a tight 3 point turn, now all 3 orange lights are always on.
Tried removing the o ring on this one, but no joy...and MOT soon.

My thoughts are ;
1/ new front discs pads, as they are quite worn anyway.
2/ The Australian Mod, since that seems to desensitize the system.
3/ get codes read and spend a fortune.

I know this is a stale topic, but any advice please??

Regards,
Jim.
 
Get the codes read, if it's 'SVS Electrical' 11.4 or 13.4 then you need Option B: ABS Mod - LAND ROVER CLUB V.I.

I bought the shuttle valve assy too just to be on the safe side, but when removed my original tested fine.

No more Amigos :) been 3 months now :)
 
LeaUK said:
Get the codes read, if it's 'SVS Electrical' 11.4 or 13.4 then you need Option B: ABS Mod - LAND ROVER CLUB V.I.

I bought the shuttle valve assy too just to be on the safe side, but when removed my original tested fine.

No more Amigos :) been 3 months now :)
Click to expand...
The three Amigo's !!! I bought a Discovery 2 2003 ES and have been plagued by these lighs, the previous owner had replaced the N/S/F wheel bearing and abs sensor but it kept coming up N/S/F sensor fault on my Snap On Solus, so I swapped the N/S and O/S bearing and sensors around, still the same N/S/F !, so I replaced the wiring from the abs connector to the SLABS ECU behind the glovebox, it was ok for a month but then it came back, so I replaced the SLABS !!!! BACK ON !!! WTF even though it says N/S/F sensor electrical failure. Could it be a shuttle valve problem has anyone had this before, where it comes up a sensor fault but its a shuttle valve? I run a Toyota workshop and can't believe a small fault is becoming a huge pain !! any body have any idea's?
 
I had the 3 lights intermittently after a recent tyre change. Adjusted tyre pressures and gave all hubs a bloody good clean with a wash gun. No more problems.
 
They will come back soon believe me.... what you did has nothing to do with the 3 amigos eventually that "bloody good clean" restored the contacts in the sensor's plugs that can be the only technically backed up explanation
 
sierrafery said:
They will come back soon believe me.... what you did has nothing to do with the 3 amigos eventually that "bloody good clean" restored the contacts in the sensor's plugs that can be the only technically backed up explanation
Click to expand...
Hmm. Thanks for the warning sierrafery. I was hoping that dirt / salt / etc might be obstructing the motion sensor in some way. Actually that leads to another question. Could anyone tell me what kind of sensor is used; e.g. optical, induction proximity switch?
 
They are passive induction(Hall) sensors, there is a 60 tooth reluctor ring within the hub which passes near the sensor(a winding with magnetic core) creating a sine wave voltage input.... that's why cleaning the sensor/hub has not much effect on this
 
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Morning all!.
The perenial 3 amigo issue seems to rumble on. So!. Loghts on & tested system, showed osf sensor so changed the complete bearing unit. Did the same on nsf to be dure. All good......for a bit. Lights back on so retested. On snapon tool it shows up as 66 shuttle valve switch & 134 shuttle valve switch. Both electrical failure. Did the mod from disco vi, still on. Put a 3ohm resister from the green/yellow wire to earth bypassing the switches. Still got lights & faults.
Any ideas?.
 
If you have the faults read and it turns out to be the abs modulator valves its a simple fix for 40 squids or less if you diy,90 if you buy the new modulator with wiring mod built in,get it read before you spend any unnecessary cash,dont go for a bodge solution, it won't work
 
As @sierrafery has already said, the 3 ohm resistor won't do anything except put an almost short circuit across the shuttle valve switches.
When the DTCs refer to the Shuttle Valve Switches, electrical failure, the first thing to is to remove the SVS plate and check is the operation of the switches including the values of the resistors in the circuit, as shown in the link on the above post.
Invariably they will show as being correct. At this point the owner has a number of choices;
  1. Put the plate back and try something else which that bloke down the pub said.
  2. Replace the plate with a new one which for reasons we'll see later might or might not work.
  3. Modify the existing SVS plate using the many instructions for the "SVS Mod" on the internet and hope that the problem goes away, which it usually does.
  4. Purchase a new SVS plate for about 40 quid and modify it to be sure that you've done the best you can.
So, what does this "SVS Mod" do?
Inside the ABS Modulator unit there is a two pin plug and socket arrangement which is where the SVS plate is connected to the modulator. From there it connects to the outside world on the green/yellow wire on the multiway plug and earth.
Vibration and age can cause the soldering on the two pin plug inside the ABS Modulator to crystalise, become "dry" and fail. If the dry joint is on the connector on the switch plate side then a new plate will clear the fault, but if the dry joint is on the ABS modulator side, then no amount of replacement plates will help.
The modification wires the switches directly to the green/yellow wire, thereby completely bypassing the faulty plug and socket. The other way to correct the fault is to dismantle the ABS modulator to gain access to the plug and repair the joint then re-assemble the modulator unit and replace it on the vehicle .... yes, that will probably require bleeding the brakes out too. Alternatively you could just replace the ABS modulator unit with a new one .... ouch!
Having seen the SVS problem which was cleared by the modification, I can say that in the case I was involved with it worked.
 
brian47 said:
As @sierrafery has already said, the 3 ohm resistor won't do anything except put an almost short circuit across the shuttle valve switches.
Click to expand...
just for accuracy i didnt say that... i said that the 3 ohm will trick the ECU as for released pedal all the time regardless of the pedal's position, cos that's the resistance (3 Ohm) of the switch pack with pedal released.... normally if everything is OK this should turn off the 3 amigos just that ABS/EBD would not work anymore
 
sierrafery said:
just for accuracy i didnt say that... i said that the 3 ohm will trick the ECU as for released pedal all the time regardless of the pedal's position, cos that's the resistance (3 Ohm) of the switch pack with pedal released.... normally if everything is OK this should turn off the 3 amigos just that ABS/EBD would not work anymore
Click to expand...

That might be so, but placing a 3 ohm resistor across the green/yellow wire to earth is going to connect it across the SVS switches, and I fail to see how a 3 ohm resistor across a circuit containing 1.0 k ohms, 2.0 k ohms or 3.020 k ohms (+/- 30 ohms) can be anything other than virtually a short circuit rendering the action of the switches completely ineffective.
If, however you were eluding to actually cutting the green/yellow wire and connecting a 3.0 k ohm resistor (3000 ohms) between ground and the wire going to the slabs ECU, then OK, I can understand that.
The full explanation is shown in:
http://landroverclubvi.weebly.com/abs-mod.html
 
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