MAGNETI MARELLI BP0777 - PASTILLAS FRENO MITSUBISHI

bp0777How do you troubleshoot code P0777 ? Transmission pressure control solenoid problems are often misdiagnosed by cutting corners. In many instances, transmissions haveAudi Fault code P0777 My Audi A3 2.0T shows fault code P0777 and i suspect faulty wiring to the Oil level sensor as i found it damaged so can someone help me with colour codes for the 3