This is a doddle....

Remove the cold air intake to the air filter first (just clips in)

Remove the plastic inlet hose (remember to disconnect all the sensors first). This is done by loosening the 2 hoseclips (one each end) that secure it.

Its a tight fit to get out but it will go with a bit of careful juggling.

Now remove the connector to the ECM and with a 1/4" drive with a 10mm socket undo the 4 bolts securing the TCM to the inlet manifold. You'll have to do this by touch but its not hard.
When undoing the last one be careful as its easy to drop it!

Carefully remove the TCM by taking it towards the LHS of the car and then up past the end of the inlet manifold.

Reassembly is the opposite. Be very careful to get the plastic inlet trunking on properly as if yyou don't manifold pressure will just pop it back off again (mine did!).

Should take less than 20 minutes to remove and refit.....

Have fun

Alastair