[mikeetastic]

guys where is the transmission ECU for the 07 E90 as i cannot find it? is it hidden somewhere and not in the same place as the DME?

i did realoem and google but cant find it.

TIA.

[jeddo45]

http://www.bimmerfest.com/forums/sho...php?t=134300#/

You may want to query TCM next time, not tranny ECU. TCM stands for transmission control module.

[PichaDis11]

The TCM is located within the transmission.

[mweisdorfer]

Originally Posted by mikeetastic

guys where is the transmission ECU for the 07 E90 as i cannot find it? is it hidden somewhere and not in the same place as the DME?

i did realoem and google but cant find it.

TIA.

http://www.n54tech.com/forums/showth...t=22473&page=2

[hichamaziz]

thank you for thread .

[eguan88]

so where is it? in the Ebox or in the Transmission?

[JonOhh]

As far as I'm aware, on the 6L45 it's located in the transmission itself, immersed in oil, as most are these days.

Nevermind. I see you have the ZF6.

Still in the trans.

[mainbearing]

Are you having problem with the transmission?

The TCM is now in the transmission, part of the "valve body". ZF calls it "mechatronic" unit, and GM, which is basically a cheapened ZF clone, calls it TEHCM (transmission electro-hydrolic control module).

https://atracom.blob.core.windows.ne...90_updates.pdf

The squarish thing on the bottom should be the CPU itself. The second picture looks a little different and may be on a FWD unit, the silver case I think would be the 32-bit CPU.

[RayLivingston]

On the ZF6HP19 the "EGS" is in the transmission, bolted to the top of the valve body.

[mainbearing]

And I guess that silver square would be the CPU itself for the ZF unit:

[RayLivingston]

The ECU itself is a small hermetically sealed unit in the center of that mass of plastic housing.

https://redirect.viglink.com/?format...lt%3D%22%22%3E

[xavi718]

Originally Posted by mainbearing

Are you having problem with the transmission?

The TCM is now in the transmission, part of the "valve body". ZF calls it "mechatronic" unit, and GM, which is basically a cheapened ZF clone, calls it TEHCM (transmission electro-hydrolic control module).

https://atracom.blob.core.windows.ne...90_updates.pdf

The squarish thing on the bottom should be the CPU itself. The second picture looks a little different and may be on a FWD unit, the silver case I think would be the 32-bit CPU.

I need some help, i have a 06 n52 automatic ZF transmission i dont have any check engine but i do have a message(Ista-D) saying, - transmission communication impossible; transmission control unit. Where is located that unit ?