Golf BKC ECU Error 18072: Troubleshooting

I purchased a test engine control unit (ECU) from a Golf BKC 105PS with an EDC16U1-5.41 03G906016DF_0281011901 to try out BDM (Binary Data Management) programming.

The control unit cannot be read via the BDM port, but it can be read using VCDS and Byteshooter.

I then tried it in a Golf V with a 90PS engine, EDC16U1-5.41 software, using the part numbers 03G906016FS and 0281011955, and I encountered this error and the car won't start. I previously compared the wiring diagrams and couldn't find any differences.

18072 - Valve control for pump/nozzle: electrical fault in the circuit.
P1664 - 000 - -
Environmental conditions:
Speed: 252 revolutions per minute.
Torque: 156.0 Nm
Speed: 0.0 km/h
Last: 0.0%
Voltage: 10.94 V
Binary value: 00001100
Temperature: 14.4°C
Binary value: 01010000

18034 - Data bus communication: Missing message from the transmission control unit.
P1626 - 000 - - -
Environmental conditions:
Speed: 0 RPM.
Torque: 6.0 Nm
Speed: 0.0 km/h
Last: 0.0%
Voltage: 14.74 V
Binary value: 00001100
Binary value: 00000000
Binary value: 10000100

18107 - Data bus, drive: Missing message from steering column electronics.
P1699 - 000 - -
Environmental conditions:
Speed: 0 RPM.
Torque: 6.0 Nm
Speed: 0.0 km/h
Last: 0.0%
Voltage: 14.74 V
Binary value: 00001100
Binary value: 00000000
(no unit): 1.0

Are the control units different, or is one of them defective?
Does anyone have a wiring diagram for such a control unit?