Here's a systematic troubleshooting approach:
1. Check the Right Turn Signal Bulb: This is the most common cause. Check both the front and rear right turn signal bulbs. Replace any burned-out bulbs with the correct wattage. Make sure they're seated properly in their sockets.
2. Check the Right-Turn Signal Fuse: Consult your owner's manual to locate the fuse box and find the fuse related to the right turn signal. Check for a blown fuse and replace it if necessary with one of the correct amperage. Don't just replace it with a higher amperage fuse; that's a fire hazard.
3. Inspect the Wiring Harness: This is where things get more complex. Look closely at the wiring harness for the right turn signal, especially near the bulb sockets and the switch itself. Look for:
* Broken wires: Look for any visible cuts, fraying, or broken connections.
* Corrosion: Check for corrosion at the bulb sockets and connectors. Clean any corrosion with electrical contact cleaner.
* Loose connections: Secure any loose connections.
4. Test the Switch (Tricky with Switch-Corner): Since your car has a switch-corner design, the turn signal switch is integrated into the turn signal housing itself, making direct testing difficult. You'll likely need a multimeter to test the continuity between the switch and the wiring harness, or it might be easiest to just replace the unit since they're relatively inexpensive.
5. Check the Turn Signal Switch (If all else fails): If the bulbs, fuses, and wiring check out, then the problem likely lies in the turn signal switch itself. Replacing this unit is the final troubleshooting step. As mentioned, this is the most involved repair and you might prefer a mechanic for this step due to the integrated nature of the unit.
Important Considerations:
* Safety First: Always disconnect the negative battery cable before working on any electrical components in your car.
* Multimeter: A multimeter is a helpful tool for testing voltage and continuity in the electrical system. If you're uncomfortable using one, you might want to seek professional help.
If you're not comfortable performing these checks yourself, take your vehicle to a qualified mechanic. They have the tools and expertise to diagnose and repair the problem efficiently and safely. Remember to always specify it's a switch-corner type to help them understand the setup.