I flew in to YSCB on a VOR radial using Nav1 and the AP. I then selected HDG Mode to vector myself on to the ILS Approach to RW 35 using the correct frequency in Nav2. I selected Nav mode on the AP (after pressing the Nav2 selector) and got a lock onto the localiser. I then selected APP Mode and and got a GS arm and then a GS lock. However there was no GS symbology on either of the EFIS displays. I know I was on the GS as the aircraft descended as and when it should. The German 530 was not in GP