In order to read a TCU on bench, you need to use the ZN151 connection with CB401/CB403, or you can use the ZN079 directly with AVDI without the ZN151 for Bosch TCU ZF 8HP

IMPORTANT: There is a connection sequence for ZN079 that must be executed as follows: Connect ZN079 to the TCU > connect the power supply adapter > connect the already powered-up set to AVDI > start the ECU Programming tool software. If not executed like that, the software might not work as expected.

Below you may find the connection diagrams for

1. ZF 8HP (BMW,Audi Porsche)

2. Mercedes VGSNAG3 9G Tronic

3. Mercedes VGSNAG2 FDCT

4. Mercedes Getrag 7DCT300