Ok I will try this.Let the Tech2 timeout. Let it sit for 6 hours, let the capacitors discharge. Although the Tech2 is supposed to not retain knowledge learned.. Then try again.
I have a second idea.. I used this when I was programming a radio to my Pontiac. Use a 2001 Pontiac Aztek.
Meanwhile I have ordered an eeprom flasher tool to approach this guy from the other side.
Also I have installed TIS200 but need to get a USB to serial adapter.
Should be in my mailbox by tuesday and I will update when I tried this all.