1. Check the Bulbs:
* Access the Bulbs: Locate the brake light bulbs in the taillight assemblies. This usually involves removing the taillight housing. Consult your owner's manual for specific instructions. 1989 Camrys likely have a single bulb for the brake/turn signal function.
* Inspect the Bulbs: Check for burned-out filaments. If you see a broken filament, replace the bulb(s). Make sure to replace with bulbs of the correct wattage.
2. Check the Fuses:
* Locate the Fuse Box: Find the fuse box in your car (usually under the dash or in the engine compartment). Consult your owner's manual for the location and a fuse diagram.
* Identify Brake Light Fuses: Your owner's manual will show which fuse(s) are responsible for the brake lights. Look for blown fuses (a broken wire inside the fuse). Replace any blown fuses with fuses of the correct amperage. Don't replace a blown fuse with a higher amperage fuse—this could cause damage.
3. Check the Brake Light Switch:
* Locate the Switch: The brake light switch is usually located on the brake pedal assembly. It's a small switch that activates when you press the brake pedal.
* Test the Switch (Requires a Multimeter): With the ignition on, press the brake pedal. Use a multimeter to check for continuity (electrical connection) across the terminals of the switch. If there's no continuity when the brake pedal is pressed, the switch needs replacing. If you're not comfortable with electrical testing, have a mechanic do this step.
4. Check the Wiring:
* Visual Inspection: Carefully inspect the wiring harness leading to the taillights and the brake light switch for any signs of damage, corrosion, or loose connections. Look for broken wires, frayed insulation, or corrosion on the connectors.
* Continuity Testing (Requires a Multimeter): If you suspect a wiring problem, you can use a multimeter to check for continuity between the brake light switch and the taillight bulbs. This is more advanced troubleshooting and requires a basic understanding of electrical circuits.
5. Check the Brake Pedal Assembly:
* Mechanical Linkage: Ensure that the brake pedal is properly connected to the brake light switch. Sometimes, the linkage can become loose or disconnected.
If you've checked all of these and the brake lights still don't work:
* Seek Professional Help: It's time to take your car to a qualified mechanic. There might be a more complex electrical issue requiring specialized tools and expertise.
Important Safety Note: Driving with non-functional brake lights is extremely dangerous. Do not drive your car until the problem is resolved. If you're unsure about any of these steps, it's best to consult a mechanic to avoid further damage or injury.
