On Oct 11, I ran the remaining 4 litres of new transmission fluid to complete the Gibbons method.
On Oct 12, I set out on a road trip to Bathurst. About 5 km from home, I stopped to fill the tank. As I departed the petrol station I noticed the ABS warning indicator on the DIM. Not long after, the message window said "brake failure - stop immediately", The speedo stopped working, the check engine light came on, the trip meter looked like this --:-- and I was stuck in 3rd gear. Even my Torque Pro app stopped working.
I pulled over and hooked up my VIDA/DICE. There were numerous faults shown. So I cleared them all (and ran the routine a second time). I now had no faults and had a flawless trip the rest of the day.
Then, one week later, after the car sat unused, I began my return journey to Sydney. I drove from my hotel to the track - no problems. I then drove to a petrol station to check my tire pressure before the trip home. When I re-started the car, I once again got the ABS warning. And the check engine light. (unfortunately, the battery in my laptop was dead and I didn't have my main power supply with me). So I went back to the track and used a work mate's computer and once again cleared the fault codes and set off for home.
Does anybody have any idea why I had these issues?