Is the schematic that I sent over, not showing in my last post?
The Keyless control unit is (E) part number 28596 3Y500 and is on the left hand of the dash under the airbag and just left of the previous image that you posted of the control timer (D) part number 28550 CF000.
The Immobiliser control unit (B) part number 28590 C9902 is located on the steering lock.
See schematic below: