Hi I’m new here but I have owned my IS300 for 12 years. I do most of the the mechanical work myself. I would like to ask if anyone knows anything about the anti theft system and how to reset it. Just before Christmas I replaced the thermostat and fitted new battery terminals I left the battery off of the car until I had finished the thermostat.When I refitted the battery the car refuses to start turns over but will not fire. I have noticed that the security light flashes after the car is unlocked and only stops when the ignition key is inserted.When the car is locked and I have opened the door
