How To Fix Cigarette Lighter Car

A malfunctioning cigarette lighter, or more accurately, a 12V power socket in your car, can be a frustrating issue. While it might seem like a minor inconvenience, this socket often powers essential devices like phone chargers, GPS units, and dash cams. Getting it working again is usually a straightforward process. This article provides a comprehensive guide to diagnosing and fixing a broken cigarette lighter in your vehicle.

Why Fixing Your Car's Cigarette Lighter Matters

While the name "cigarette lighter" might evoke images of outdated habits, the 12V power socket it represents remains incredibly valuable in modern vehicles. Here's why fixing a non-functional socket is important:

• Powering Essential Devices: As mentioned earlier, smartphones, GPS devices, and dash cams rely on this socket for power, especially during long drives. A dead socket can leave you stranded without navigation or communication.
• Roadside Assistance: Many portable tire inflators and jump starters utilize the 12V socket. In an emergency, a working socket can be a lifesaver.
• Recreational Use: When camping or tailgating, portable coolers, fans, and even some small appliances can be powered through this socket.
• Resale Value: Although a minor issue, a non-functional accessory socket can negatively impact the resale value of your vehicle. Buyers expect all features to be in working order.
• Safety: Relying on alternative, potentially less reliable, power sources can create a safety hazard. A dedicated, functioning 12V socket is the safest way to power auxiliary devices.

Troubleshooting: Identifying the Problem

Before diving into repairs, it's crucial to pinpoint the cause of the problem. Here's a step-by-step troubleshooting guide:

1. Check the Fuse

This is the most common cause of a non-functional cigarette lighter. A blown fuse protects the circuit from overloads. Here's how to check and replace it:

1. Locate the Fuse Box: The fuse box is usually located under the dashboard, in the glove compartment, or under the hood. Consult your car's owner's manual for its exact location.
2. Identify the Correct Fuse: Your owner's manual will also specify which fuse controls the cigarette lighter/accessory socket. The fuse box cover often has a diagram as well.
3. Inspect the Fuse: Use a fuse puller (often found inside the fuse box) or needle-nose pliers to remove the fuse. Hold it up to the light. If the thin wire inside is broken or blackened, the fuse is blown.
4. Replace the Fuse: Use a new fuse with the exact same amperage rating as the old one. Installing a fuse with a higher amperage rating can be dangerous and could cause a fire.
5. Test the Socket: After replacing the fuse, test the cigarette lighter socket with a known working device, such as a phone charger.

2. Inspect the Socket for Obstructions

Sometimes, foreign objects like coins, debris, or even broken pieces of a charging cable can lodge themselves in the socket and prevent proper contact. Visually inspect the socket and remove any obstructions.

3. Check the Wiring

While less common, a loose or damaged wire can also be the culprit. This requires a bit more investigation:

1. Disconnect the Battery: For safety, disconnect the negative terminal of your car battery before inspecting the wiring.
2. Locate the Wires: Access the back of the cigarette lighter socket (you may need to remove some trim panels).
3. Inspect the Connections: Check for loose wires, corroded terminals, or damaged insulation.
4. Test for Voltage: Use a multimeter to test for voltage at the socket terminals. With the ignition on, you should see approximately 12 volts. If there's no voltage, the problem lies further upstream in the wiring.
5. Repair or Replace Wires: If you find damaged wires, repair them with electrical tape or replace them entirely. Ensure all connections are secure.

4. Examine the Cigarette Lighter Element (If Applicable)

If you're still using the cigarette lighter for its intended purpose (lighting cigarettes), the element itself could be faulty. Inspect the element for damage or corrosion. A replacement element can usually be purchased separately.

How to Choose the Right Replacement Fuse

Selecting the correct replacement fuse is critical for safety. Here's what to consider:

• Amperage Rating: This is the most important factor. The amperage rating is printed on the fuse itself (e.g., 10A, 15A, 20A). Always replace a blown fuse with a fuse of the same amperage rating. Using a higher amperage fuse can overload the circuit and cause a fire.
• Fuse Type: Cars typically use blade-type fuses. Ensure you purchase the correct blade size (e.g., mini, standard, maxi). Your owner's manual will specify the correct type.
• Brand: While brand isn't as crucial as amperage and type, choosing a reputable brand ensures quality and reliability.

Real-World Owner Experiences

Many car owners have faced similar issues with their cigarette lighters/accessory sockets. Here are some common experiences and solutions:

• "My phone charger stopped working, and I thought it was the charger. But then I tried a different charger, and it didn't work either. I checked the fuse, and it was blown. Replacing the fuse fixed the problem!" - This highlights the importance of checking the fuse first.
• "I accidentally dropped a coin into the cigarette lighter socket, and it stopped working. I used a pair of tweezers to remove the coin, and it worked fine after that." - This illustrates the potential for obstructions to cause problems.
• "My cigarette lighter socket wasn't working, and I couldn't find the fuse for it in the owner's manual. I ended up taking it to a mechanic, and they fixed it quickly. They said it was a loose wire." - Sometimes, professional help is needed for more complex issues.
• "I tried using a cheap adapter in my cigarette lighter socket, and it blew the fuse. Now I only use high-quality adapters." - This underscores the importance of using quality accessories to avoid overloading the circuit.

Frequently Asked Questions (FAQs)

Q: Why does my cigarette lighter keep blowing fuses?

A: This usually indicates an overload in the circuit. It could be caused by using a faulty device, plugging in too many devices at once, or a short circuit in the wiring. Try using different devices or having the wiring inspected by a mechanic.

Q: Can I use a fuse with a higher amperage rating if my cigarette lighter keeps blowing fuses?

A: No! Using a fuse with a higher amperage rating is extremely dangerous and can cause a fire. It's crucial to use the correct amperage rating specified in your owner's manual.

Q: What if I can't find the fuse for the cigarette lighter in my owner's manual?

A: You can try searching online forums specific to your car's make and model. Other owners may have encountered the same issue and can provide guidance. Alternatively, consult a mechanic.

Q: How much does it cost to fix a cigarette lighter socket?

A: The cost can vary depending on the problem. Replacing a fuse is inexpensive. Repairing or replacing wiring can cost more, depending on the complexity of the repair. A complete socket replacement can also vary depending on the car model and labor costs.

Q: Can I replace the entire cigarette lighter socket myself?

A: Yes, but it requires some mechanical skills and basic tools. Disconnecting the battery and ensuring proper wiring connections are crucial. If you're not comfortable working with electrical systems, it's best to consult a professional.

By following these steps, you can often diagnose and fix a non-functional cigarette lighter in your car yourself. Remember to prioritize safety and consult a professional if you're unsure about any part of the repair process.