Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
Hello! My name is Gary.Welcome to JustAnswer.I'm reviewing your question now, and will post back with a reply shortly.
You need to have the config setup in the ABS and PCM set for manual transmission.
A Holden dealer can do this for you.
Do you need any further help?
Assuming you have used a factory harness to eliminate the TCM, then I can't see what else to change. If you haven't done it this way, then you may never fix it.
I hope my advice has been of assistance to you.