Help with three amigos !!

Alerick · Aug 22, 2020

Hi all,
could use a little help and advice,,I have an 02 discovery TD5 2.5 manual.
i have a problem with electrics ( i think ) the three amigos comes on " sometimes "then when i turn the car off and back on they go off and i might not see them again for a week or more.
but if i dont use the car for a couple of days they might come back on .
i did have a leak at the top of the drivers side A pillar that dripped onto the fuse box
so i changed it hoping it would cure the problem but i find today i still have it.
is there any one out in Landy zone that might be able to shed a little light on this.??
Thank you .

WhyIsThisSoHard · Aug 22, 2020

Yes I have had this and it's a common problem, within the ABS system there are two switches on a plastic mount under the ABS unit, the switches are usually OK, but the connections to these switches fails, the fix is to take wires from each side of the switches connect one to the ground (thus cutting out the faulty connection on the earth side) and the other to the wire as it enters the terminal block on the ABS (thus cutting out the faulty connection on the switching side) - The switches still remain in circuit operating as they should but the faulty connections are bypassed.

I have done this on my Defender, and it is much harder than on a disco where the access is far better.

Prior to this it would be OK, then not, then other strange things, then just one light then all three - all over the place, since applying the above fix - sorted with no issues.

You can do it in situ without touching the actual brake pipe system, it's purely an electrical fix

Alerick · Aug 22, 2020

WhyIsThisSoHard said:
Yes I have had this and it's a common problem, within the ABS system there are two switches on a plastic mount under the ABS unit, the switches are usually OK, but the connections to these switches fails, the fix is to take wires from each side of the switches connect one to the ground (thus cutting out the faulty connection on the earth side) and the other to the wire as it enters the terminal block on the ABS (thus cutting out the faulty connection on the switching side) - The switches still remain in circuit operating as they should but the faulty connections are bypassed.

I have done this on my Defender, and it is much harder than on a disco where the access is far better.

Prior to this it would be OK, then not, then other strange things, then just one light then all three - all over the place, since applying the above fix - sorted with no issues.

Hi , thank you very much for the information i will have a look at the switches and g
et the problem sorted ..again many thanks

WhyIsThisSoHard · Aug 22, 2020

I don't know if external links are allowed but http://www.handyhowie.co.uk/handyhowie/Disco_ABS_Fault.html has a good description specifically for the disco - I couldn't actually find anything for my defender other than comments along the lines of do the same thing, it's just a bit more awkward - technically yes - but it's very difficult! on a defender you access the whole thing through the side air intake!

If I can't post to other websites do a search for "handyhowie" and "Disco_ABS_Fault"

RangeRoller dt · Aug 22, 2020

WhyIsThisSoHard said:
Yes I have had this and it's a common problem, within the ABS system there are two switches on a plastic mount under the ABS unit, the switches are usually OK, but the connections to these switches fails, the fix is to take wires from each side of the switches connect one to the ground (thus cutting out the faulty connection on the earth side) and the other to the wire as it enters the terminal block on the ABS (thus cutting out the faulty connection on the switching side) - The switches still remain in circuit operating as they should but the faulty connections are bypassed.

I have done this on my Defender, and it is much harder than on a disco where the access is far better.

Prior to this it would be OK, then not, then other strange things, then just one light then all three - all over the place, since applying the above fix - sorted with no issues.

You can do it in situ without touching the actual brake pipe system, it's purely an electrical fix

You go girl!

Links known to be problems like scammers etc won’t be allowed but usual ones are fine

Alerick · Aug 22, 2020

Hi, Thanks again , you have been more than help full..with your information i am sure i can get
the problem fixed..thanks again

ronsealdeath · Aug 27, 2020

You need to read the fault codes in the SLABS ecu with Hawkeye or Nanocom or similar. Shuttle valve is common and a fix you should do anyway.
Older SLABS ecus like to throw ABS faults due to worn or dodgy hubs. ABS looms also let in water or give faults if cheap replacements.
Read the codes if shuttle valve mod doesn’t work. I put a new shuttle valve in at same time just to make sure. Test it first with a multimeter.

Alerick · Aug 28, 2020

Hi thank you for the help i have a friend who has a code reader
will get him to look at it for me ..thanks again ...stay lucky

ronsealdeath · Aug 30, 2020

I have sacrificed many goats to beazimuth, no luck involved

Help with three amigos !!

Alerick

Active Member

WhyIsThisSoHard

Member

Alerick

Active Member

WhyIsThisSoHard

Member

RangeRoller dt

Well-Sprung Member

Alerick

Active Member

ronsealdeath

Sagging Member

Alerick

Active Member

ronsealdeath

Sagging Member

Similar threads