Key Fob Unlocks But Won't Start Car Ford: What To Do

My Car Won't Detect the Key Fob. What Should I Do? The News Wheel from thenewswheel.com

If you own a Ford car and your key fob unlocks the doors but won't start the engine, you might feel frustrated and confused. After all, a key fob is meant to make accessing and starting your car easier. However, this problem is not uncommon, and there are several reasons why it happens. In this article, we will explore the possible causes of this issue and what you can do to fix it.

Low Battery

One of the most common reasons why a key fob unlocks the doors but won't start the car is a low battery. Key fobs use batteries to transmit signals to the car's immobilizer system, which allows the engine to start. If the battery in your key fob is low or dead, it won't be able to communicate with the immobilizer system, and your car won't start. To check if your key fob's battery is low, try pressing the buttons from a closer distance than usual. If the car responds, the problem is likely a low battery. To fix this, replace the battery in your key fob. You can do this yourself by following the instructions in your car's user manual or by taking it to a professional.

Immobilizer System Malfunction

If the battery in your key fob is not the problem, the issue might be with the immobilizer system. This system is designed to prevent theft by disabling the engine if an unauthorized key or fob is used. If the immobilizer system malfunctions, it might prevent your car from starting even if the key fob is working correctly. To diagnose an immobilizer system malfunction, you will need to take your car to a professional mechanic. They will use specialized equipment to scan the car's onboard computer and identify the cause of the problem. Depending on the issue, they might need to replace or reprogram the immobilizer system.

Ignition Switch Failure

Another possible cause of a key fob unlocking the doors but not starting the car is an ignition switch failure. The ignition switch is responsible for sending power to the engine's starter motor, which cranks the engine and starts the car. If the ignition switch fails, it won't be able to send power to the starter motor, and your car won't start. To diagnose an ignition switch failure, you will need to take your car to a professional mechanic. They will check the ignition switch and its connections to identify the cause of the problem. If the ignition switch is faulty, they will need to replace it.

Conclusion

In conclusion, if your key fob unlocks the doors but won't start your Ford car, the problem might be a low battery, an immobilizer system malfunction, or an ignition switch failure. To diagnose and fix the issue, you will need to take your car to a professional mechanic. However, you can try replacing the battery in your key fob yourself before doing so. Remember, regular maintenance and inspection of your car's key fob, immobilizer system, and ignition switch can prevent these issues from happening in the first place.

So, if you encounter this problem, don't panic. Follow the steps outlined in this article, and you'll be back on the road in no time.