Starting

The things required for the starter to operate are a good battery, good clean, tight and secure connections at the battery, power goes from the battery to the ignition switch and from the ignition switch to the starter. The ignition switch rarely fail on a Camry, starter solenoid contact and plungers do fail more often usually you can hear a click and frequently the problem is intermittent. There is a starter relay located in the engine compartment fuse box on the driver's side, when the car fails to start using a wiring diagram the starting circuit can be tested for cotinuity and voltage/voltage drop.