Abs,tc,hill descent

Kasun Devasinghe · Jan 30, 2021

Yesterday morning I helped my friend to jump start his car with my freelander (l series) then I drove about 40km and parked.In the evening when I start the car 3 amigos illuminated.I immediately scan the car and reset the fault codes and 3 amigos go away.Then I drove about 100km they didn’t illuminate.Can someone tell whats the reason to them appear?I will attach scan report[GALLERY=][/GALLERY]

GrumpyGel · Jan 30, 2021

The "shuttle valves" are a part of the main pump/modulator. They are a common problem on the Wabco system. Mine failed so I replaced it with a 2nd hand modulator - it failed with the same problem after a couple of years - I once again replaced with another 2nd hand modulator and this one has been running fine for a number of years now. I have seen just the shuttle valve bits advertised for repairing the modulator when this error occurs but I've never tried them. The same unit is used in the Discovery2 and there is a messy fix described for that which presumably would work for Freelander.

Dunno what the open relay message is about.

The sensor message is presumably what it says.

These codes have presumably been raised at different times - you won't know what raised the fault yesterday presumably.

Sensors can be bought and shipped easily. A replacement pump/modulator might be difficult there if there aren't many Freelanders being scrapped - you need a unit from a 1997-2000 car, from 2000 on they were different Teves units.

Kasun Devasinghe · Jan 31, 2021

Thank you so much

Kasun Devasinghe · Jan 31, 2021

GrumpyGel said:
The "shuttle valves" are a part of the main pump/modulator. They are a common problem on the Wabco system. Mine failed so I replaced it with a 2nd hand modulator - it failed with the same problem after a couple of years - I once again replaced with another 2nd hand modulator and this one has been running fine for a number of years now. I have seen just the shuttle valve bits advertised for repairing the modulator when this error occurs but I've never tried them. The same unit is used in the Discovery2 and there is a messy fix described for that which presumably would work for Freelander.

Dunno what the open relay message is about.

The sensor message is presumably what it says.

These codes have presumably been raised at different times - you won't know what raised the fault yesterday presumably.

Sensors can be bought and shipped easily. A replacement pump/modulator might be difficult there if there aren't many Freelanders being scrapped - you need a unit from a 1997-2000 car, from 2000 on they were different Teves units.

Its mean that I can replace this abs pump with discovery 2 pump? Or the shuttle valve actuators

GrumpyGel · Jan 31, 2021

Kasun Devasinghe said:
Its mean that I can replace this abs pump with discovery 2 pump? Or the shuttle valve actuators

Although the Discovery2 and early Freelanders use the same Wabco modulator/pump I do not know if they are directly interchangeable.

Nodge68 · Jan 31, 2021

I believe the shuttle valve and the shuttle valve mod will work on the FL1 ABS modulator.

Kasun Devasinghe · Jan 31, 2021

Nodge68 said:
I believe the shuttle valve and the shuttle valve mod will work on the FL1 ABS modulator.

As mr grumpy said discovery 2 abs pump looks like the same so will it be a direct fit?

Nodge68 · Jan 31, 2021

Kasun Devasinghe said:
As mr grumpy said discovery 2 abs pump looks like the same so will it be a direct fit?

The ECU would vehicle specific, but I suspect the modulator itself would work.

If it doesn't, then you'll need to do the shuttle valve mod.

Kasun Devasinghe · Jan 31, 2021

Nodge68 said:
The ECU would vehicle specific, but I suspect the modulator itself would work.

If it doesn't, then you'll need to do the shuttle valve mod.

Can you put a link or some info how to do the shuttle valve mod

Nodge68 · Jan 31, 2021

Kasun Devasinghe said:
Can you put a link or some info how to do the shuttle valve mod

There should be plenty of threads about it in the Discovery section of this forum. It was a common mod on the Disco 1 a decade ago.

Kasun Devasinghe · Feb 1, 2021

Nodge68 said:
There should be plenty of threads about it in the Discovery section of this forum. It was a common mod on the Disco 1 a decade ago.

I’m goint to do the bypass mod can please tell me which wire should I connect the bypassed wire (in the discovery forum they connect to yellow green wire but freelander doesn’t have yellow green wire it has ash yellow wire and ash green wire

Nodge68 · Feb 1, 2021

Kasun Devasinghe said:
I’m goint to do the bypass mod can please tell me which wire should I connect the bypassed wire (in the discovery forum they connect to yellow green wire but freelander doesn’t have yellow green wire it has ash yellow wire and ash green wire

I've never done a bypass mod, so no idea which wire, or what it does.

GrumpyGel · Feb 1, 2021

Kasun Devasinghe said:
I’m goint to do the bypass mod can please tell me which wire should I connect the bypassed wire (in the discovery forum they connect to yellow green wire but freelander doesn’t have yellow green wire it has ash yellow wire and ash green wire

Why are you doing anything if the 3 Amigos have gone off and not come back on?

You do not know how long that shuttle valve code has been sitting there. Might have been years.

Leave well alone until there is a problem I'd say.

Kasun Devasinghe · Mar 17, 2021

GrumpyGel said:
The "shuttle valves" are a part of the main pump/modulator. They are a common problem on the Wabco system. Mine failed so I replaced it with a 2nd hand modulator - it failed with the same problem after a couple of years - I once again replaced with another 2nd hand modulator and this one has been running fine for a number of years now. I have seen just the shuttle valve bits advertised for repairing the modulator when this error occurs but I've never tried them. The same unit is used in the Discovery2 and there is a messy fix described for that which presumably would work for Freelander.

Dunno what the open relay message is about.

The sensor message is presumably what it says.

These codes have presumably been raised at different times - you won't know what raised the fault yesterday presumably.

Sensors can be bought and shipped easily. A replacement pump/modulator might be difficult there if there aren't many Freelanders being scrapped - you need a unit from a 1997-2000 car, from 2000 on they were different Teves units.

Replaced it with second hand pump today
No fault codes cheers (But don’t know how long I can celebrate )

Abs,tc,hill descent

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