Volvo v40 bj2004 diesel, no transmission control unit found after diagnosis

Moin moin together, I have a Volvo v40 bj2004 diesel 85Kw D4192T3 After the clutch exchange the cart no longer starts, error message shows me : 0002 fuel level sensor 0011 engine coolant sensor ECT 000A ambient temperature sensor Faulty And when reading out he tells me no transmission control unit answers. I would like to know from you where I find the gear control unit, or is it integrated with the motor control unit? Thank you in advance