Pajero NM Electronic fault when engauging 4X4

Im sure that someone out there has had the same problem, I have the NM exceed and recently I have what I believe to be and electrical problem (when the vehicle is cool) as cool as it can get in Townsville
The problem is that the 4X4 display lights on the dask will flash the centre (amber) light and not display the normal 2H mode.
When this happens I can not select any of the other 4x4 functions.
When the vehicle warms up I can stop, turn off the motor, restart the motor and on most occasions the selector will go back to normal.
My problen is that the local 4X4 Pajero dealer/service centre wants to replace everything in the circuit.
Can anyone help me with pinpointing the fault.
Many thanks
Blackass55.
PB