300k and the three amigos

[TheEntertainer]

Hi all,

Just hit 300k on the td5, reconditioned gearbox is going great. But the 3 amigos come to visit. Done the shuttle valve kit and now getting a electrical fault on the abs system (nanocom). If i do the stock 3 amigos wire fix will the abs and traction still work or does it just bypass the lights?

Thanks all

[RANDLOVER]

ABS an TC will still work, you are just bypassing a bad earth in the ABS module.

[TheEntertainer]

Thanks mate, is it possible to remove it without removing the entire block? I’m a little nervous in removing the break lines.

[Tins]

Thanks mate, is it possible to remove it without removing the entire block? I’m a little nervous in removing the break lines.
Yes, you can access it without undoing the brake lines but you will feel a bit uncomfortable “forcing “ them bending them to reach the shuttle assy.
I wouldn’t worry too much about undoing the lines if you have access to a NANOCOM or similar. You need one to activate the power bleed program.

[RANDLOVER]

Thanks mate, is it possible to remove it without removing the entire block? I’m a little nervous in removing the break lines.
https://www.tools.com/assets/thumb/K5014.jpg?20220412162337 IIRC I used a very flat ratchet like this to get under the brake line/s or some other obstruction so that I didn't have to take the lines off.

[TheEntertainer]

Jip, got a nanocom, it won’t always talk to the abs module though… reports the electrical fault though when it does connect.

[Tins]

Jip, got a nanocom, it won’t always talk to the abs module though… reports the electrical fault though when it does connect.

Yes, but it will when you fix it.

[TheEntertainer]

Ah so the earth adds to the comms
Issue. What size Allen key does it take if you can remember. Also how long will
it approximately take to remove and refit? The electrical will take about 20-30 min all up I recon.

[Tins]

Ah so the earth adds to the comms
Issue. What size Allen key does it take if you can remember. Also how long will
it approximately take to remove and refit? The electrical will take about 20-30 min all up I recon.

4mm Allen. Call it an hour and a half all up, Land Rover gods willing.

[TheEntertainer]

Did the fix but still same issue… tc and abs lights still on error code:
Shuttle valve electrical switch fail 011 times,
Grrrr

[Nanna Truck]

Have to ask, did you clear the faults in the nanacom ? In my case testing revealed it was the earth wire connection in the ABS card that had failed. Faults cleared after the mod and all good. You could do a continuity check to see if your mod has been successful.
regards
Harry

[TheEntertainer]

Hi yes, I’ve cleared them a few time. Interesting that I can only view and clear the abs faults with ignition on position 2. 95% of the time it does not work with the car running.
Why is the earth and comms stable when the car is not running?
How don do the continuity test?

[shack]

Hi yes, I’ve cleared them a few time. Interesting that I can only view and clear the abs faults with ignition on position 2. 95% of the time it does not work with the car running.
Why is the earth and comms stable when the car is not running?
How don do the continuity test?I think when the engine is running the nanocom loses connection to the SLABS controller as the SLABS needs to communicate with the other units in the vehicle, that is only my very rudimentary understating of it.

Not a lot is known about the SLABS really, I did a bit of work on the code but ran out of time.

The later revision SLABS apparently has "relaxed" fault reporting but, I was unable to verify this from a quick look at both the firmwares.

Anecdotally..... I had an early revision on one car that would throw faults, I fitted the last revision and haven't seen any faults for years.

[Nanna Truck]

Hi yes, I’ve cleared them a few time. Interesting that I can only view and clear the abs faults with ignition on position 2. 95% of the time it does not work with the car running.
Why is the earth and comms stable when the car is not running?
How don do the continuity test?

Did you test the shuttle valves with a multi-meter post mod to test if the shuttle valves and wiring modification are correct?
From memory, both valves open reading is 3.00 One valve closed 2.00 Both closed 1.00.
Also as per your other post, on your vehicle the connection to the red/black wire is correct. (not a dry joint)
If all tests correctly the fault is elswhere.
Regards
Harry

[TheEntertainer]

Hi,
No i did not test them, will have to pull them out to test them.
I bought a new shuttle valve so would hope that it was ok, will see if I can pull it out tomorrow morning and test it.
cheers
J

[TheEntertainer]

I’ll swap the earth and live wires over tomorrow and see if they I mixed them up. Apparently they could be either way.

[TheEntertainer]

Hi all

Swapped them aroung and it now work fine....

I'm not going to why they are in reverse when compered to all the info on the net.

When I did the fix I marked the wires and check 3 time, before I soldered them and re assembled.

For the next guy with the same issue, there is no risk in swapping the wires over....

non the less it all fine now, thanks all for you help

J

[Nanna Truck]

Hi all

Swapped them aroung and it now work fine....

I'm not going to why they are in reverse when compered to all the info on the net.

When I did the fix I marked the wires and check 3 time, before I soldered them and re assembled.

For the next guy with the same issue, there is no risk in swapping the wires over....

non the less it all fine now, thanks all for you help

J

Well done, and a good reminder for others to Test the option B wiring is correct before reinstalling the shuttle valves.

[TheEntertainer]

Well it only lasted two trips, i’s back, lights is on around 80% of the time.
Readings

Normal state 1.600
One closes 1.2600
Both closed 0.800

[TheEntertainer]

Interestingly enough, if I start the car and then push the break in full, then it all seems to be ok for 5-30 min before the re appear again.

[TheEntertainer]

I got hold of another unit and tested the shuttle valve. this one measures:

Normal state 3.000
One closes 2.000
Both closed 1.000

where as the new one measures :
Normal state 1.600
One closes 1.2600
Both closed 0.800

Would that explain that the error does not come up when I press on the break when starting?

[TheEntertainer]

Finally got some time to install a second new shuttle valve and it’s all fixed now. i soldered up bypasses just in case. Turns out the new one we we installed had issues, strange but that is how it is, have not seen the 3 amigos for over two weeks now. Whooot