1. Faulty flasher relay:
- Check the flasher relay, which is usually located under the dashboard or near the fuse box.
- If it's defective, replace it with a new one.
2. Bad bulb:
Although you mentioned all the lights are working, double-check all the indicator bulbs to ensure they are in good condition and making proper contact. A faulty bulb can sometimes affect the flashing rate.
3. Wiring issues:
- Inspect the wiring for any loose connections, shorts, or corrosion, particularly in the indicator circuit.
- Clean or repair any affected wiring or connection.
4. Turn signal switch problems:
- Inspect the turn signal switch assembly for proper functionality. In certain cases, a worn-out or malfunctioning turn signal switch can affect the flashing rate.
5. Ground connection:
- Check the vehicle's ground connections to ensure a proper electrical path. Clean any corrosion or rust from ground points.
6. LED bulbs (if installed):
- If you've replaced the original incandescent bulbs with LED bulbs, the faster flashing rate could be due to compatibility issues. Some LED bulbs require additional resistors or a flasher relay specifically designed for LEDs.
Before you attempt any fixes, disconnect the battery for safety and consult your vehicle's service manual for specific instructions related to your Mitsubishi Lancer model. Additionally, seek professional assistance from a qualified mechanic if you are uncertain about any of the mentioned troubleshooting steps.
