Ok so had a dead battery in my 2001 camry. Replaced and know the signal lights/tail lights stop lights and reverse lights as well as radio/ heater/gauges do not work. Checked fuses found 3 blown replaced. Still nothing also can not put into gear when brake pedal is pressed. Could it be a relay and if so which one? Remember all fuses are good. Thank you
Are the license plate and rear side marker lights working?
If you had reversedly installed the battery terminals, the 100 A ALT fuse would blow. How were the fuses checked and did you use a testlight or DVOM to check for presence of battery voltages at the brake and gauge fuses?