Mazda Key Replacement - What You Need to Know
Mazda key replacement usually requires the help of a professional locksmith. A few things you can prepare will make the process easier. This includes the information regarding their Mazda car, the year it was made and whether a transponder is inside the car or not.
A CHOICE member's Mazda key fob battery failed recently. She tried to replace it on her own, but was unable to get the cover off.
Transponder Keys
If you have a car built in the past 20 years, it's likely that your key contains a transponder chip in it. These chips are incorporated in the plastic head of your key and are designed to communicate with the computer system of your car when inserted into the ignition cylinder. This allows the computer in your car to verify that the key is yours and disables the immobilizer so that only you can start the engine.
The chip inside your car keys is powered by electromagnetic energy transmitted by a small coil that is placed around the barrel of the key. The chip sends a response back to the car once it receives this signal, and the computer can then recognize that it is your key. This prevents the possibility of fraudulent key manipulation and discourages theft.
mazda 2 key not working turn to their car dealerships when they need to get their keys copied. However, a professional locksmith can also make duplicates of your transponder keys at cheaper prices than the dealer.
Keep a spare transponder in a secure location, away your car. This will be helpful if you ever need to get your car keys replaced or in the event that you lose one of them. If you have lost your transponder keys make sure to note the code number stamped on the metal plate that is attached to them. This information is needed to program a new replacement key in the event of a need.
Key Fobs
A key fob can be capable of more than just unlocking your car's door. The handy devices can be used to lower your windows, call your car to park and auto-park it.
Fobs communicate with the door latch using the radio system referred to as RFID. The RFID chip embedded in the fob transmits a coded message which matches the code on the reader of the door latch. When the signal is in sync the door opens and allows access to its owner.
It shouldn't take more than a couple of minutes to replace the battery. Most fobs come with a removable cover that makes it easy to replace the battery. Your owner's manual should provide instructions for this, and there are a myriad of online videos to assist with the procedure.
You must also remove the plate from the key fob, which has an identification number. This code number should be written down and stored in a secure place (not your vehicle). Then, should you lose your Mazda key fob then you'll have the code to use to purchase a new one from the dealer. You could be covered by your insurance, but first you will need to pay the deductible. Key fobs can be purchased at your local hardware store, online or at the big box store, but the dealership will usually be the cheapest.
Keyless Entry
Keyless entry is a convenient feature that allows you to unlock your car without having to touch the door handle. It utilizes a radio signal to communicate between the key fob and the car. It also allows you to lock and start the engine with the key fob. This technology is increasing in popularity for all kinds of vehicles. Some automakers include this technology in the base price of their vehicles, whereas others offer it as an option.
You can add this feature to your car at home. You'll require the required tools and components. Make sure you get an instruction manual that will provide you with all the information. The manual will tell you which wires to connect. You'll also require wire stripper or cutter along with a soldering tool and some electrical tape.
Once you have the required items, you'll be required to disconnect the battery from the vehicle prior beginning. Then, remove the cover under the steering wheel, to gain access to the required wires. Label the wires you intend to connect. Use only the wires listed in the instructions. Wrap the wires that are exposed in black electrical tape.
Wear gloves if you're doing the work yourself to prevent irritation to your skin. Also, ensure that you save the code number for your key fob in a safe place. It will be useful if you ever need to program your new system.
Ignition Cylinder
The ignition cylinder is the mechanical part that you insert your car key to start the engine. It is connected to the ignition switch, which is an electrical component that locks the engine and reads the anti-theft code within the key to allow it to start.
The ignition cylinder might wear out or even disappear over time and stop working properly. This can lead to problems starting the car or charging it. You may find your key getting stuck in the ignition.
In the majority of cases, you'll have to replace the ignition cylinder rather than just the car key. This is a very expensive and complicated process, particularly for cars with security systems which require the ignition cylinder to be replaced in order to perform properly.

It can be tricky because you'll need to take off the steering wheel and then remove the lower cover of the steering section to get to the ignition lock. After removing the steering wheel it is necessary to disconnect the negative battery cable and isolate it to avoid accidental connections.
Once you have all the tools required, the removal process should be fairly straightforward. After you have removed the cylinder, you'll need to reinstall it following the same process in reverse. Install it correctly, so that the tab and retaining slot are in alignment. You'll also need to ensure that all the tumblers are placed in the proper sequence.