F10 8HP access with E-Sys through ZGW gateway

[Dron_Gus]

I don't know why you may need this but here is an instruction how to communicate with BMW's 8HP ecu without actual BMW car.
You will need BMW's 8hp transmission itself. Or at least its mechatronic.

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BMW's ZGW gateway - "videotape".

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BMW ENET diagnostic cable. (actually this is twisted pair cable between RJ45 and OBDII connector with only one resistor, no active components).
OBD2 female connector.

Wiring details:
Here is 8hp connector pinout https://rusefi.com/docs/pinouts/8hp/
You will need to connect CAN1 (pins 5 and 6) to ZGW. Connect ground to pin 14 and apply +12V to to pins 13 (Terminal 30 - constant +12V) and 9 (Terminal 15 - Ignition +12V).

On ZGW side you need only black 54-pin connector:
Pin 19 - BRN/BLK - ground
Pin 39 - RED/BLU - Terminal 30 - Constant +12V
Pin 42 - GRN/RED - Terminal 15 - Ignition +12V
To 8HP:
Pin 46 - BLU/RED - PT-CAN High - 8hp pin 5 (black wire in stock harness)
Pin 47 - RED - PT-CAN Low - 8hp pin 6 (yellow wire in stock harness)
To OBDII connector:
Pin 53 - BLK/WHT - OBDII pin 12
Pin 54 - BLK/BRN - OBDII pin 13
Pin 18 - ORG - OBDII pin 3
Pin 36 - BRN/YEL - OBDII pin 11
Pin 41 - YEL - OBDII pin 8 (this is some "activation" signal and inside ENET it is connected to pin 16 through resistor)

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OBDII connector:
Pins 4 and 5 - ground
Pin 16 - +12 V.
Pins 12, 13, 3, 11, 8 - see above

Here is my setup:

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Now you can install E-Sys and try to access you homebuild BMW:

Снимок экрана 2025-12-25 184615.png