A malfunctioning car cigarette lighter can be inconvenient, especially if you rely on it for charging devices or using accessories. This guide will help you diagnose and repair common issues with your car’s cigarette lighter.
Tools and Materials Needed
- Multimeter: For testing electrical connections.
- Replacement Fuse: Appropriate for your car’s fuse box.
- Replacement Lighter Socket (if needed): Match the make and model of your car.
- Screwdrivers: For removing panels and accessing components.
- Needle-Nose Pliers: For handling small parts and fuses.
- Wire Brush or Sandpaper: For cleaning connections.
- Electrical Tape: For securing connections.
Steps to Repair a Car Cigarette Lighter
1. Check the Fuse
A blown fuse is a common cause of a non-working cigarette lighter.
Solution:
- Locate the Fuse Box: Refer to your car’s manual to find the fuse box location.
- Identify the Fuse: Look for the fuse associated with the cigarette lighter (often labeled as “CIG” or “ACC”).
- Inspect the Fuse: Use needle-nose pliers to remove the fuse and inspect it. If the metal strip inside is broken, the fuse is blown.
- Replace the Fuse: Replace it with a new fuse of the same amperage. Insert it into the correct slot and ensure it is securely in place.
2. Test the Power
Ensure the cigarette lighter socket is receiving power.
Solution:
- Use a Multimeter: Set the multimeter to measure DC voltage.
- Test the Socket: Insert the multimeter probes into the cigarette lighter socket. The red probe should touch the center terminal, and the black probe should touch the metal casing.
- Check for Voltage: With the car turned on, the multimeter should read around 12 volts. If there is no voltage, there may be an issue with the wiring or the socket itself.
3. Inspect the Cigarette Lighter Socket
If the fuse is intact and the socket is receiving power, inspect the socket for any damage or debris.
Solution:
- Remove the Lighter Element: Pull out the lighter element or any plug from the socket.
- Clean the Socket: Use a wire brush or sandpaper to clean any corrosion or debris inside the socket.
- Check for Damage: Inspect the socket for any visible damage, such as bent or broken contacts.
4. Replace the Cigarette Lighter Socket
If cleaning does not resolve the issue, the socket may need to be replaced.
Solution:
- Access the Socket: Depending on your car model, you may need to remove a panel or dash cover to access the back of the socket.
- Disconnect the Wiring: Carefully disconnect the wiring connected to the back of the socket.
- Remove the Socket: Unscrew or unclip the socket from its mounting position.
- Install the New Socket: Insert the new socket into the mounting position and secure it with screws or clips.
- Reconnect the Wiring: Reconnect the wiring to the new socket, ensuring all connections are secure.
5. Test the New Socket
After replacing the socket, test it to ensure it works correctly.
Solution:
- Insert a Device: Plug in a car charger or any other device that uses the cigarette lighter socket.
- Check Functionality: Turn on the car and ensure the device receives power.
Additional Tips
- Check the Lighter Element: If the lighter element itself is faulty, replace it with a new one.
- Consult the Manual: Always refer to your car’s manual for specific instructions and fuse diagrams.
- Avoid Overloading: Do not use devices that exceed the recommended amperage for the socket, as this can blow fuses or damage the socket.
Conclusion
Repairing a car cigarette lighter involves checking the fuse, testing the power, inspecting the socket, and possibly replacing the socket. By following these steps and using the right tools, you can troubleshoot and fix common issues with your car’s cigarette lighter, ensuring it works properly for charging devices and using accessories.