I had the same issue with the error codes:
P0473 Exhaust Pressure Sensor 1, Signal Too High
P2456 Diesel Particle Filter, Differential Pressure Sensor, Implausible Signal
Managed to fix it by regenerating the DPF and changing the G450 sensor under the hood.
Here is my answers to your original...
I ran into the same problem, tried a ready made adapter cable as described above but with little luck.
Connectors fit perfect but warning did not go away.
I managed to get rid of the warning by installing a 25 ohm load resistor in the wiring harness.
● Shared the full instruction and...
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