To find the correct fuse, you must consult your owner's manual. It will have a fuse box diagram showing the location and function of each fuse. Look for fuses related to:
* Ignition Switch: This is the most likely culprit if your car won't start at all.
* Starter: If the engine cranks but won't start, the starter circuit fuse may be blown.
* Powertrain Control Module (PCM): This module controls many aspects of the ignition system. It likely has a fuse protecting its power supply.
Without knowing the specific problem you're experiencing, it's impossible to pinpoint the correct fuse. Always check your owner's manual first. It's the only reliable source for this information.