Here's why it's complicated and what you should do:
* Underhood Fuse Box: This box likely contains fuses related to the headlight circuit, but probably not the main power fuses. It's usually located under the hood, near the battery. Your owner's manual will show a diagram.
* Interior Fuse Panel: There might be additional fuses in the interior fuse panel, often located in the dashboard. Again, check your manual.
* Relays: Headlights commonly use relays. These switch the high current needed for the lights, protecting the smaller fuses in the main circuits. The relays themselves can fail, so you'll need to inspect them as well.
To find the correct fuses:
1. Obtain your owner's manual: This is the most critical step. The manual will have diagrams clearly showing the location of all fuses and relays, and what each one controls.
2. Check the underhood and interior fuse boxes: Once you locate the fuse boxes using your manual, carefully examine all the fuses. Look for blown fuses (a broken filament inside the fuse). If you find one, replace it with a fuse of the *exact same rating* (amperage).
3. Check the relays: If all fuses seem good, investigate the headlight relays. The manual will show you their location. Sometimes, relays can stick or fail, requiring replacement.
Important Note: If you're uncomfortable working with electrical systems, it's best to take your Catera to a qualified mechanic to diagnose and repair the headlight issue. Incorrectly working with car electrical systems can be dangerous.
