TCM gescheitert?

[Forf]

Hallo Leute ,

Wenn TCM ausfällt, funktioniert die Übertragung der Arbeit manchmal oder es funktioniert nicht ?

Ursache in meinem Fall, die Übertragung funktioniert gut, wenn die Motortemperatur auf Betriebsebene ist ! Und es zeigt Warnungen auf dem Armaturenbrett Wenn temps niedrig sind !

Vielen Dank!

[der_Nordmann]

Versteh nur Bahnhof!

Google-Translator?

Gruß, der_Nordmann

[Forf]

Ja. Ich erklärte dies früher . Ich weiß, Englisch, aber ich bin mir nicht sicher, ob es hier eine Hilfe sein kann ? Es wäre einfacher, in Englisch zu erklären.

[der_Nordmann]

English is okay!

[Forf]

Thanks!
Gearbox is cft23, inside is the TCM. If TCM fails, what is the impact to the transmission, to be more precise does the transmission work from time to time OR it never works?

Case on my car is that it works fine when engine temps raise! And it shows warnings on the dash when engine temps are low!

[der_Nordmann]

What kinds of warning does it show?

Do you feel any problems at low temp?

Regards,
der_Nordmann

[Forf]

Transmission malfunction & ESP system fault.
P0700
P0701
P0790
U2023
U1900
U0101
U0001

If I drive or revv at low temps, those two warnings appear, once the engine stationary warmed up then it works fine!

[der_Nordmann]

I am not quiet sure, but the first 3 codes are gearbox-tcm malfunctions.

I did't find any used tcm's on ebay. Looks like they are very rare.

Maybe the following Homepage can help. The company repaires tcm's.

http://sender.de/

Sorry and good luck,
der_Nordmann

[electroman]

First of all: did you check the battery? How old is it? I ask this, because a lot of problems are caused by weak / aged batteries. A weak battery can cause some funny error codes without a reason. Even if you don't have problems to start the engine, the battery could have a damage resulting in showing some failure codes which do not really exist. If it is possible, try another (good) battery.

Kind regards
electroman

[Forf]

Thanks!
Yeah looks like either there is shorten wire somewhere or broken communication between modules CAN network or any module itself!

Its strange how its reacting differently to the temperatures!

Anyway... thanks!

[Forf]

Zitat:

@electroman schrieb am 31. März 2016 um 22:56:02 Uhr:

First of all: did you check the battery? How old is it? I ask this, because a lot of problems are caused by weak / aged batteries. A weak battery can cause some funny error codes without a reason. Even if you don't have problems to start the engine, the battery could have a damage resulting in showing some failure codes which do not really exist. If it is possible, try another (good) battery.

Kind regards
electroman

Hi electroman,
I did try it with a new battery Ca/Ca silver dynamic as recommended but it gave the same result the next morning!

In a way or another, I am not sure if Instrument Cluster is the cause? If it was it wouldn't behave differently to the temps!

[Batterietester134005]

Did you recognise any tranny malfunction like no shifting or slipping gears?
Maybe low oil level when the oil is still cold?

[Forf]

Zitat:

@oldmanscout schrieb am 31. März 2016 um 23:07:12 Uhr:

Did you recognise any tranny malfunction like no shifting or slipping gears?
Maybe low oil level when the oil is still cold?

When those two warnings appear, screen flashes. If I turn the engine off and then ignition on only, "transmission malf" only is appeared on dash, PRND randomly changes on screen, and the starter relay clicks fast on the fusebox.

And when engine reaches operational temp, none of that happens!

[der_Nordmann]

And the gearbox itself is working fine?

Gruß,
der_Nordmann

[Forf]

Zitat:

@der_Nordmann schrieb am 31. März 2016 um 23:20:23 Uhr:

And the gearbox itself is working fine?

Gruß,
der_Nordmann

Yes. It shifts fine like it used to before!