After watching some youtube videos and stuff I decided to give it another crack and it worked.
This reminds me on setting an old VCR clock, or microwave without the instruction book!
Basically I did this...
- Ignition OFF and doors closed.
- Find the service screen.
- Press and hold the button 4 times until it beeps each time.
- Press the button quickly 3 times and you're in!
From here it gets a bit messy, I was trying a bunch of things but from memory OPTIONS appears on the screen.
I think I press and held the button until the beep.
Then you have the country settings, quickly press the button until AUS comes up, don't worry if you go past as it cycles through again.
Press and hold again until the beep, this I think bought up the service option.
Now I messed up at this point, at first it had 15,200 (the distance until my CJ hits 150k)
But I did something and it them showed 30,200.
Took me a few tries to clear it but basically I had had to go through and turn it off again, then start over to get the 15,200 back.
Now the question remains as to why they turned it OFF?
Maybe they were just as frustrated as me if they had to use the one button to do this?