Toyota Repair: Electrical

Question
I hooked battery cables backwards I changed 100 amp fuse car turns over but won't start 1994 camry I don't know where main fuse is can you help,I hope I didn't ruin computer

Answer
The 100 amp is the main fuse, check the smaller AM1 and AM2 fuses, they supply power to the ignition switch, check the rest of the fuses with a test light and the key on, don't forget the fuses on the inside at the left lower dash, the computer is well protected by the fuses and I have never seen one fry due to battery terminal reversal.