AU Falcon Dash diagnostics

["Interceptor"]

How you all going.
Just tried out the diagnostics for you dashboard but I can't get them to work. I have a Series II Falcon Forte and I have another Instrument cluster also from another car and tried that out too but cant seem to get any of them working. I am guessing I have the timing wrong. If someone knows of a video that they could post up on Youtube or something to help out, or a bit more of a description on what happens when you know it is in diagnostic mode would be much appreciated. PS: I have seen the diagnostics working on a series 2 forte so no my car is not incompatable.