The Reason You Shouldn't Think About Enhancing Your Mazda 6 Key Fob
Changing the Battery in Your Mazda 3 Key Fob
It's a pain to drive off at the end of a long, hard day and find that the key fob is dead. Luckily, it's an easy fix by purchasing a simple battery replacement from the hardware store or big box retailer.
A spare key fob for your Mazda 3 is an inexpensive alternative to not having to take your vehicle by a dealership to let them re-program the keys.
Battery Replacement
You can change the battery on your Mazda 3 keyfob at home. However, you should only replace the battery when it goes out of service, or if the key fob displays a message in the multi-information display saying, "Low key fob battery. Replace battery."
To open the key fob's case, you'll need a tape-wrapped flathead screwdriver as well as some patience. Put the flathead screwdriver's head in a notch, or gap in the bottom part of the Mazda 3 key fob to remove the lower part. Repeat this process for the top metal part but be careful not to damage the rubber ring that is at the bottom of the key fob's case.
Once the fob's case is open, you'll be able to see the slot on either side of the case, which houses the battery. Use the flathead screwdriver with tape to gently pry open the case, starting on one side and then moving to the opposite. Remove the old CR2025 and replace it with a new one, making sure to put it on its face to ensure the correct orientation. Finally, put mazda 3 keys on the battery and reconnect both sides of the key fob case, pressing until you hear them click.
Once you've replaced your battery Check the fob to make sure it is working by locking and unlocking your doors. If everything is in order, you can start using the Mazda 3's remote functions to drive again!
Pairing Issues
This could mean that the transmitter inside your car has been damaged. This is usually a matter of the assistance of a professional for repair and may need a new key fob.
If you've attempted to replace the battery and reprogramme the key fob, but it hasn't worked then the chip in the key fob might be defective. This can happen if your keyfob has been dropped or exposed to saltwater or the touch of dirty fingers.
You'll need to locate a small "key" that is built into the seam to remove the circuit board and diagnose the problem. You can then check the electronic chip for corrosion or damage. It is best to use a clean paper towel to prevent damaging the microchip.
You can also inspect the battery connector's terminals to examine if they're cracked or broken. If this is the case, then carefully connecting them back will usually restore the function of the key fob. You can also check the buttons for damage or wear. If the buttons are loose, they can be re-soldered as well unless the button is actually snapped off.
Interference Signals
There are few things more frustrating than staring at the "No Fob Detected" message when you attempt to start your car. This happens at the worst possible times, like the time you're late to work or when you have to pick up your children from school/daycare. The good news is that there are a few steps you can take to pinpoint the issue and determine the root of the problem.
Interference signals can cause the remote key fob to cease working properly. This can be caused by objects such as weather conditions, buildings as well as transmitters operating on the same frequency. Interference may occur if your vehicle is equipped with aftermarket equipment that transmits at the same frequency as your key fob.
The key fob could be damaged if exposed to water or salty water. The rubber seals on the chip's electronic components can be penetrated by water, especially in the event that it is submerged for long periods of time, such as in a pool or ocean at the beach. This could cause the chip to cease working and require replacement of the key fob. If you own a programmable key you can clean the chip with isopropyl alcohol or an electronic cleaner to help it return to working. If this doesn't help you can be sure that the chip is fried and will need to be replaced.
Locking and Unlocking of Doors
The buttons on the keys send electronic signals to a solenoid in the car, which converts that signal into mechanical action that locks and unlocks doors. If your door lock doesn't work, it could be an issue with the solenoid. This requires experts from repair shops to analyze.
A low-voltage battery can hinder the fob from functioning correctly. This can happen if the battery is unable to charge or if the contacts become corroded and stop conducting electricity. The good news is that a new battery can solve this issue in only minutes.
The receiver module may be the problem if the key fob doesn't work after you replace the battery or re-program the device. The device receives radio frequency signals from the key fob and interprets them into controlling the vehicle's functions. If it malfunctions it could be costly to fix.
To confirm if this true, put your spare key into the key slot. Then, turn the ignition ON. Press the key fob button twice within 10 seconds without removing it. The Mazda 3 system will now be able to synchronize the key with your car and allow you to use it as your primary remote for driving. This lets you program up to three keys.