citroen C5 2005 - AISIN AM6 automatic gearbox failure the engine goes out

Engine stalling does not cause a malfunction since the automatic transmission is once.
From my assessment, you obviously have EGR problems or clogged Fap.
The list of engine operation parameters should explain everything, and at the moment leave the gearbox and take care of the engine, which during the engine load begins to choke.

Moderated By manta:

3.1.11. Do not send messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.

Warning.

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You know how the lock-up works and what happens

And what happens when you turn on both buttons, where you have sport mode and driving in the snow?, Which here also turns on "lock-up" (full lock).
Speaking of the box, it had to block the fourth gear or three, but unreal.
The author himself does not write much about the failure of the gearbox, because it is not known if this is the emergency mode of the gearbox or engine itself, and it is not known how the transmission behaves by shifting to manual gear changes (manual).
However, entering the emergency mode of the gearbox itself does not cause the engine to stall and sooner with the engine there is something wrong than a problem with the gearbox.

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But incorrect (undesirable) engagement of the lock-up with the gear engaged at a standstill and at the same time held the brake already - it's like you would fasten one, hold the brake and release the clutch almost completely - you will cut the drive and choke the engine. I still get the impression that you don't know what it is and what the role of the converter lock is.

First of all: Do not compare a manual gearbox to a machine.
Secondly, engaging the lock-up in no way affects the engine operation and does not cause the engine to stall, once ...
Thirdly: The converter's work is driven directly and indirectly, thanks to the lock-up, so don't write to me and compare it to manual gearboxes.
Fourthly, "I recommend reading the topic of automatic cases, which will be easier to discuss with you.
Fifth: Do you know what would have to happen if the main automatic shaft of the automatic transmission was blocked (and this is not possible, unless the linings stick together and do not block the shaft). And so the shields remain in the automatic gearbox and not because they had to fly to small pieces, and this is not real, at most it will break, but if it was, the engine would not start and would rather roll during starting.
Sixthly; The automatic transmission drives or does not drive and only such faults including the converter, and the engine will work anyway.

So analyze again and draw a conclusion.

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Well, no wonder where the magic will go then the rotational motion transmitted by the engine, since the engine is idling, the gearbox is fastened and the car is stationary. Normally, it is lost in the converter. What if this one is locked (lock-up)?

If the engine is idling and the D gear is engaged and the car is standing, even though we have even lock-up turned on, we are dealing with a damaged grange basket, where it begins to slide, but it will not block the engine in any way, so that the engine goes out, because the engine will continue to run and thus increase the engine speed.
The only defects that may occur are damage to the drive itself placed in the automatic gearbox transmitted via a gear wheel to the drive shaft, which could be caused by a converter rather than a guilty converter or alleged lock-up damage.

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Look for a fault in this case in the engine, I will take care of the box.

Not necessarily in the engine, unless the author gives more information, because it may also be the drive in the automatic transmission itself and it would be reliable enough described by the author.

Mr. Spec: Since when such valves block so that the engine goes out ?. Such valves are to switch on a given gear and any damage, the car will go in one or two or even three gears. Spec, it's about time to shorten your mind.
Because in this case, of course, if the engine is functional, it should only be the drive itself and I would not move the converter or solenoids.
And also the wheels may be blocked, where during the attempt to start the engine goes out, but we do not know about it and we do not know how the car behaves on N.
And you colleagues here are arguing. (Sad but true)

Moderated By T5:

Just.
I block the possibility of writing.
Please familiarize yourself with the "lock-up" operation
3.1.11. Do not send messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.

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Do you read carefully or in a flash? I ask what will happen if in a functional automatic gearbox based on planetary gears, with a torque converter, you lock the forward gear, you have the engine running, you stand in a place with your foot on the brake and you can force the converter lock-up fastener. Where in this case does the motor movement (torque) die when the lock is inactive, and where will it go when you lock the lock?

Rather, you do not read my posts thoroughly and with understanding, because I do not understand you completely. Because if I am to understand that if I want to switch sport to driving while the engine is running, then what is going to happen is nothing. (Because only here the lock-up switches so that the converter wheel can rotate rather than using the converter clutch.)
However, do you know what lock-up is and what it is for? (I don't think you know)

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And here I will surprise you, because you can even weld the hubs of the permanently driven axle, shift the forward or reverse gear and give the gas to the max - the engine will not go out, only the 2000-3000 rows will spin, depending on the construction of the converter.

Here I completely do not understand what you wrote, because what has a lock-up with the converter and welding the hub? (You probably think of permanent two-wheel drive at the same time, as long as I understand from your description here.)

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I get the impression that you confuse the lock-up of the converter with the differential locks, and that you saw the automatic transmission only from the jack side in the cabin.

This is a poor impression, because I am not mistaken for the systems, which I write all the time, that it is not real that the extinguishing will be caused in this citroen by a converter or lock-up, and even more so that the car does not report a box error !!!.
As a side note, I completely don't understand you here from the last post.

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Mr. Transit2 you do not read thoroughly with understanding, you write ..... we are dealing with a damaged grange basket, ....... Not a grange but forward. Spec is Specialization. Finish the bath, save your shame.

Specialist, he would take care of the author's problem, and not my texts, because the fact that I made a typo could happen to everyone, and it was a relief for you.