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My down hill and traction control are always lit while my ABS randomly appears. The ABS is typically transient showing up maybe once a week but goes away after the car has been turned off.
that's kind of weird. You need to have the codes read to know what the error is for sure.

Trust me, invest in an amigo.
 

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Abs Modulator Fix

i HAVE DONE IT 6000KM AGO, NO MORE AMIGOS BRILLIANT. i WENT ALL THE WAY TO NO3 FIX AND REMOVED PRINTED CIRCUIT BOARD STICK COMPLETELY.
ALL FUNTIONS OPREATING NORMALLY NO PROBLEMS.:)
 

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Hi There

I did the modification some time ago but the 3 lights were still there, I was very disappointed. I took it to a Land Rover Independent specialist and has the faults reset. I did hower not tell the guy that I had done the mod. He was pretty sure that I would need to replace the abs pump. Much to his surprise, gone, no 3 amigos.

I just hope that they stay away now.

Thank you very much for posting this fix?
 

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My down hill and traction control are always lit while my ABS randomly appears. The ABS is typically transient showing up maybe once a week but goes away after the car has been turned off.
Me too - I have the ABS Amigo and my faults are :

114 - shuttle valve electrical failure
 

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Tres Amigos Came to Visit

The Tres Amigos light just came on for the first time since I have owned the 2001 Discovery, 118,000 miles. Mind you, it's been 3 weeks since I bought it from a used car dealer! The brakes are good but they are squeaking. Is that where I should start? The dealer told me over the phone that most likely I had to replace the modulator for $3000. Yikes! What are the most logical steps I should take? I see so much very useful information here. Most importantly...is my son safe in the car when the lights are on?
 

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The Tres Amigos light just came on for the first time since I have owned the 2001 Discovery, 118,000 miles. Mind you, it's been 3 weeks since I bought it from a used car dealer! The brakes are good but they are squeaking. Is that where I should start? The dealer told me over the phone that most likely I had to replace the modulator for $3000. Yikes! What are the most logical steps I should take? I see so much very useful information here. Most importantly...is my son safe in the car when the lights are on?
1. buy abs amigo ($200)
2. plug in abs amigo and read codes (which will reset codes as well)
3. Get back to us with codes
4. Once you reset the system and clear the codes, dont do anything else until the codes come back on.

$3k for an abs pump? Tell them to jump in a lake. At most, you can have the pump rebuilt for $300 or do it yourself for pennies.
 

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I think the brake fluid leaks are a much less common cause of the modulator failure than are the circuit board solder problems.
 

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I was wondering what percentage that would come out to be. I was hoping it was the other way around.
I know in the link that you posted, the company said that brake fluid leaks are by far the most common cause for modulator failure. I have never heard of a case of brake fluid leakage, but have heard of many many cases of modulator issues being solved by resoldering the connector pins.

I have never heard of that $70 kit permanently curing the modulator issue. That being said I have never heard of anyone with the shuttle valve error, that has done the resolder fix, have any issues with their modulator after that point.

If only Meritor Wabco had better soldering skills, we would have never had to deal with this issue in the first place.
 

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After reading all of the posts I decided to do the fix this past weekend.

My experience: I decided to take the whole ABS modulator out( I hate working in tight areas if i don't have to). Removed the shuttle valve, checked the valve and it did not ohm out. Late in the afternoon on friday so I called LR. $92 dollars. The sale person said immediately that it would not work. Put back together per instructions and 330 miles later its all good.

My tip on brake bleeding is to bleed the two main lines going into the abs modulator first. then the 4 on top of the modulator, and then at the wheels. It seemed to go faster that way.

99 Discovery II 136,000
 

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virgin island fix

I also had the 3 amigos at 110,000 and after researching this to death, I elected to do the solder pin bypass option using the trailer plug. This worked great and seems to be the best solution. all the dealer is doing by replacing the shuttle valve and the abs modulator half is, effectively, replacing both sides of the connection. Pasadena LR wanted $900 for the install with parts. I did it for $70 including new shuttle valves from British Pacific and an alternator extension plug from O'Reilly Auto parts. Definitely the way to go.
 

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Discussion Starter #53
glad it keeps helping others... damn wish i had a $1 for everyone who this helped!

=)
 

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OK so about a month ago I did the modification and I had the lights reset on testbook, I drove around for about a day and the 3 amigos came back.

On friday I took my disco off road to play a bit and the moment there is wheel slip, I can hear the ABS pump kick in. I also hit the brakes hard and the ABS is working.

Is it perhaps that the system has air in.
 

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Just wanted to post another success story...I had the SVS fault, and did this fix in about 3 hours. Choose option B, and found the hardest part was actually taking out the SVS switches with an Allan wrench because i couldn't see the screw.

Great fix! Thank you!
 

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I know in the link that you posted, the company said that brake fluid leaks are by far the most common cause for modulator failure. I have never heard of a case of brake fluid leakage, but have heard of many many cases of modulator issues being solved by resoldering the connector pins.

I have never heard of that $70 kit permanently curing the modulator issue. That being said I have never heard of anyone with the shuttle valve error, that has done the resolder fix, have any issues with their modulator after that point.

If only Meritor Wabco had better soldering skills, we would have never had to deal with this issue in the first place.
Right, such a simple item is causing a big problem.

It sounds like total rebuild with kit and soldering is the way to go. I have an extra modulator and may tear into it and do all three fixes. (im curious if I can cut it apart without wrecking it!) Then, Kiss the Amigo's goodbye forever...
 

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