2012 Toyota Camry SE V6 keyless entry push to start. Alternator wore out so I changed it. Had the battery off for over 12 hours When I got everything back together, my fob stopped working. I sit in the car with the fob, the security light is flashing, I press the start button, the steering wheel unlocks and the dash lights up for a second before it turns off, I hold the fob to the start button and the dash lights up like you turned a key on the the first click. No radio, power windows don't work, no ac. First acc position I think. When the dash lights up, the key symbol on the dash turns green and the security light stops blinking. All batteries are either new or charged. All the fuses are good. I've tried every reset I can find online and nothing works. Two different Autel scanners couldn't do it.They both said the rest I needed was through the ECU and that they couldn't communicate with it. Is this something I need a Toyota tech to plug in a Toyota compressor to reset? I'd hate to give them $200+ just to hit a reset button. I'm very mechanically inclined so this is driving me crazy. Thanks for any help in advance.
It was the alternator fuse I couldn't tell was blown till I pulled it out. Takes forever to get to the bolts holding it in. Replaced that and everything worked great. Keys worked. Car starts. Radio didn't even lose my presets.
Congrats on finding the problem and thanks for letting us know!
Well, you shouldn't have to reset anything with a Toyota to make it run. Sometimes it might idle a little bit odd but it should run and lights should all work correctly. So you might try this. Disconnect the battery for 5 minutes. Then turn the key to the on position, not running. Then put the battery cables back on and that might work. If it doesn't, you're going to have to see a mechanic. Sometimes just changing the battery can knock out security systems
Push button start. No key. I've tried that for 5 minutes all the way to an hour.