Making sense of ABS Amigo errors!

Jon K

Jon K

Well-known member
Jan 28, 2007
243
0
Pennsylvania
Firstly, thanks to user tricked04 for lending me his ABS Amigo. I got it tonight and knew the procedure took seconds so hopped in the car at 11PM and read the codes, unit will be back in the mail tomorrow!

I pulled the txt file and saw:

1.--Current Faults---->
Active Faults:
114:Shuttle Valve Electric Failure
Logged Faults:
Front Right Sensor Bad Output
114:Shuttle Valve Electric Failure
<-END Faults

It just so happens that I had bought a Shuttle Valve Repair Kit part #SW0 500030. So, is my issue a bad shuttle valve? What's the deal with the logged faults? Do I also have a bad front right sensor? Poop. Was hoping the sensor was ok but maybe its ok and just threw a fault once and it stored it? I am not sure what the difference is.

Any recommendations are appreciated - does this mean my modulator is ok and just the shuttle valve is kaput?

Thanks again!
 
pdxrovermech

pdxrovermech

Well-known member
Jul 3, 2009
1,807
57
Portland, OR
did you buy the $100 kit or the $600 kit? In my experience the cheap one works maybe 20% of the time and if it was mine I'd just live with that fault. The FR sensor is unrelated and I would clear the code and wait to see if or how long it took to come back on.
 
Jon K

Jon K

Well-known member
Jan 28, 2007
243
0
Pennsylvania
pdxrovermech said:
did you buy the $100 kit or the $600 kit? In my experience the cheap one works maybe 20% of the time and if it was mine I'd just live with that fault. The FR sensor is unrelated and I would clear the code and wait to see if or how long it took to come back on.
Click to expand...

I have the $100 one.

I do think my right front wheel doesn't ABS, as in the snow I pull to that side and am pretty certain I can lock that wheel up.

Does that say the sensor? Can I clear the codes with the ABS Amigo?
 
G

GoodJava

Well-known member
Mar 24, 2006
56
0
San Marcos CA
Clear the faults with ABS Amigo and see how long before they come back. For me the 11.4 fault would return within 2-3 brake pedal pushes. I did OPTION B from the linked abs-mod site and now 3 months and a trip to SLC snow no more Amigos and ABS and TC work great.
 
Jon K

Jon K

Well-known member
Jan 28, 2007
243
0
Pennsylvania
Damn - so it cleared them. I am going to go outside and start the car.

Starting the car, without pressing the brake, the lights should be off ya?

Gonna go check now...


here's what that yielded:

Turn car on (engine included), ABS light on, 1 second of lights off, bam, other 2 on. Doh.

Plugged amigo in again with key on II. Unplugged. Turned car on. Same thing.

Read the text file:

1.--Current Faults---->
Active Faults:
114:Shuttle Valve Electric Failure
Logged Faults:
114:Shuttle Valve Electric Failure
<-END Faults
------------------------------------------------------------
* *
------------------------------------------------------------
..--Previous Faults--->
Active Faults:
114:Shuttle Valve Electric Failure
Logged Faults:
Front Right Sensor Bad Output
114:Shuttle Valve Electric Failure
<-END Faults
 
Last edited:
listerdiesel

listerdiesel

Well-known member
Feb 16, 2010
1,113
1
Rushden, Northants
www.stationary-engine.co.uk
We did have the 3 Amigos on our Disco 2, but they would clear on a restart and maybe not come back for a while. Sometimes we'd get them on and off all day, other times it might be a week before they reappeared.

Intermittent faults like this appear to be either the shuttle valves switches, or the connections to them.

Continuous faults appear to be sensor-related in the main.

If you go here:

http://www.landroverclubvi.com/abs-mod.html

You can read up on Josh's explanation of how to mod the ABS modulator.

We bought the $100 kit, took the ABS modulator apart (without disturbing the hydraulics at all) and did the soldered pin check as well as changing the switches.

We had previously picked up a good used ABS Modulator for the slightly ridiculous price of $45, and we took the bit out of that to do the soldered pins mod on, the day before, so we had it ready to fit.

Looking at the pins, they were dull on our one and shiny on the other one, so that may have been a factor.

Smear a touch of Vaseline on the shuttle switch connector plug O-ring before refitting, it goes back a whole lot easier.

We did that back in mid December, not a squeak since.

On our car (RHD) there is enough movement on the brake lines to lift the ABS Modulator out of the cradle and get the parts out. The main bolts that hold the unit together are M8 socket head screws, and are VERY tight. I got a figure for the torque on those from Wabco and passed it on to Josh, hopefully he has added it to the write-up.

Peter
 
Jon K

Jon K

Well-known member
Jan 28, 2007
243
0
Pennsylvania
Hm so here's the odd ball issue.

Got in truck this morning to go to work.

Lights gone! No 3 amigos. Weird. I found a snow bank to try and slip my right front wheel on - ABS worked. What the heck?

No lights all the way to work 10 miles. ABS seems to work. Going to go try hill descent and see what happens. But...odd?
 
Disco Dog

Disco Dog

Well-known member
Apr 8, 2009
198
0
Costa Rica C.A.
:patriot: With all the recall shit that's going on today, how did Rover get past a recall, considering the ammount of D2's with this issue, and of course the cost of these trucks new. I think we should demand a recall!!!
 
listerdiesel

listerdiesel

Well-known member
Feb 16, 2010
1,113
1
Rushden, Northants
www.stationary-engine.co.uk
Disco Dog:

Most of these faults only crop up on the older vehicles, most with 100K miles on the clock. The particular Disco ABS unit is also used on the Hummer vehicles, which is where the original information came from.

I don't think that a recall would be feasible for 12-year old cars, especially as all the warnings work that let you know there is a problem.

Our D2 was built November 1998, registered June 1999, just passed 103K miles.

Jon K:

Yours sounds like shuttle valve switches etc.

Peter
 
Ballah06

Ballah06

Well-known member
Jan 21, 2007
5,638
16
Savannah, GA
Not to hijack the thread, but since it is on the Tres Amigos... Mine came on twice for a brief time about a month ago and then disappeared when i restarted the truck. Any ideas as to why?
 
J

jycsalas

Well-known member
Mar 6, 2009
159
1
Ballah06 said:
Not to hijack the thread, but since it is on the Tres Amigos... Mine came on twice for a brief time about a month ago and then disappeared when i restarted the truck. Any ideas as to why?
Click to expand...

I say those are the early signs of the SVS fault. Mine started one day, then two months later, then once a month, then once every few weeks, once a week, once a day, then every time I drove.

Be ready for it when it comes more often...
 
Jon K

Jon K

Well-known member
Jan 28, 2007
243
0
Pennsylvania
Bad news gents - I was so happy! I tested HDC out on at lunch, hit some snow to get the traction and abs working. I was really excited. Then I made a left hand turn into my driveway after driving 15 - 20 miles today, DING DING DING.

Noooooooooooooooooooo

So, yeah, something ain't happy. I guess I'll read the codes again before I mail back the ABS Amigo. Totally awesome useful tool though - just wish I didn't need it :)

Is it possible to replace the shuttle valve by unmounting the modulator and lifting it up? I just want to avoid bleeding the brakes and stuff - I hear you "need" the testbook to pulse the ABS system but...
 
Ballah06

Ballah06

Well-known member
Jan 21, 2007
5,638
16
Savannah, GA
jycsalas said:
I say those are the early signs of the SVS fault. Mine started one day, then two months later, then once a month, then once every few weeks, once a week, once a day, then every time I drove.

Be ready for it when it comes more often...
Click to expand...

Thats what I was thinking. We ll see what happens....
 
J

jycsalas

Well-known member
Mar 6, 2009
159
1
Jon K said:
Bad news gents - I was so happy! I tested HDC out on at lunch, hit some snow to get the traction and abs working. I was really excited. Then I made a left hand turn into my driveway after driving 15 - 20 miles today, DING DING DING.

Noooooooooooooooooooo

So, yeah, something ain't happy. I guess I'll read the codes again before I mail back the ABS Amigo. Totally awesome useful tool though - just wish I didn't need it :)

Is it possible to replace the shuttle valve by unmounting the modulator and lifting it up? I just want to avoid bleeding the brakes and stuff - I hear you "need" the testbook to pulse the ABS system but...
Click to expand...
I wouldn't think that is bad news. Having TC/HDC/ABS work with the lights off and then NOT work with the light on tell you its electrical and I am 99% sure that if you do my repair, you will have no more amigo visits. UNLESS......

Your SVS fault is being caused by leaking shuttle valves in which case you need the $40 seals. You'll know if they are leaking when you pull the switches out.

And yes, you don't need to remove any brake lines to do option B.... That is the beauty...

Have you read the write-up two members already directed you to?
 
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