- Faulty Brake Light Switch: The brake light switch, also known as the stoplight switch, might be defective or malfunctioning. It's responsible for activating the brake lights when the brake pedal is depressed. A faulty switch may cause the brake lights to stay on even when the pedal isn't pressed.
Check the Brake Light Switch:
1. Locate the brake light switch: It's usually mounted near the brake pedal, attached to the brake pedal arm.
2. Inspect the switch for any damage or loose connections.
3. Press and release the brake pedal to check the operation of the switch. If it's not making a clicking sound or doesn't seem to be working, it may need replacement.
Problem #2 Electrical Issues:
- Short Circuits: There could be a short circuit in the electrical wiring that powers the brake lights and the third brake light. This might cause the lights to remain illuminated even without the brake pedal being pressed.
Check for Short Circuits:
1. Visually inspect the wiring system for any exposed wires or damaged insulation.
2. Use a multimeter to test for continuity to confirm the presence of a short circuit.
3. Repair or replace any faulty wiring as necessary.
Problem #3 Faulty Tail Light Assembly:
- Defective Tail Light Assembly: The tail light assembly itself could have internal faults leading to the constant illumination of the brake and tail lights.
Inspect the Tail Light Assembly:
1. Remove the tail light assembly from your Corolla.
2. Check for any visible damage or loose connections within the assembly.
3. Test the individual bulbs or LEDs in the assembly to see if any of them are not working properly.
4. Replace the entire tail light assembly if the problem persists.
