Really great video - that spring is annoying to get in the right place. And a lot of people end up breaking the two halves of the key apart because they don't know where the latch is to press on it.
I have a 2005 Mazda MPV Van. The stupid switch-blade like key fob had tape around it from a family member. I drove it home about two miles and started fix various issues. I came to the key, warped in duct tape to only find the button pad and electronic transmitter, battery and all missing. No big deal. Before ordering anything from $34 to $380, I wanted to make sure I ordered what I needed. The front portion of this key was never apart and once tape, emblem and screw was removed, I found the spring broken. (Like 98 % of them / Great engineering there Mazda/Ford), but it did NOT have any radio frequency identification chip inside it. The vehicle starts fine with the key shank only. I am guessing it depends on the system you have. Push to start, requires no key. Mine is key only. Some may use the RFID chip, as a proximity sensor, unlocking the door(s) when within 6 feet of vehicle. On GM vehicles, if the RFID chip allowed the vehicle to crank with key and run, then a failure happened during that “Key Cycle” the anti-theft is disregarded. This is back up mode, allowing the vehicle to start and run, even without a proper exchange of the antenna around the key, that when the key is inserted, the antenna turns into a weak magnetic field. This excites the RFID chip that produces a 17-21 digit binary code. The antenna switches from a magnet, to a receiver and a proper electronic Hand-Shake occurs, allowing a 5 volt signal to the ECM to turn on spark and injectors to start. Otherwise, the customer has to enter into “Tennis Shoe Mode” and start walking. Apparently, this Ford/Mazda product does not always use an RFID chip. I have no anti-theft light “On” the instrument cluster. Just letting those who want to save money know, mine is working without an RFID chip (Invented in Sweden as Immobilizer). In Europe, if you steal a car, you can drive any direction to an other country, like Germany to Italy in a few hours. ASE Master Tech since 1978 - Retired
That chip is a transponder mate be super careful with everyone without that your whole key will need reprogramming even if it just gets dropped and broken
I'm guessing either it broke or he hammered it/pried it out (though this doesn't look super easy, I'm looking at my keys now). I'm going to try doing this soon and I'll share my results here.
Subscribe to AK needs help
Really great video - that spring is annoying to get in the right place. And a lot of people end up breaking the two halves of the key apart because they don't know where the latch is to press on it.
Thank you this helped me I levered the prong coming out of the spring with a small screwdriver into the slot
I have a 2005 Mazda MPV Van. The stupid switch-blade like key fob had tape around it from a family member. I drove it home about two miles and started fix various issues. I came to the key, warped in duct tape to only find the button pad and electronic transmitter, battery and all missing. No big deal. Before ordering anything from $34 to $380, I wanted to make sure I ordered what I needed. The front portion of this key was never apart and once tape, emblem and screw was removed, I found the spring broken. (Like 98 % of them / Great engineering there Mazda/Ford), but it did NOT have any radio frequency identification chip inside it. The vehicle starts fine with the key shank only.
I am guessing it depends on the system you have. Push to start, requires no key. Mine is key only. Some may use the RFID chip, as a proximity sensor, unlocking the door(s) when within 6 feet of vehicle. On GM vehicles, if the RFID chip allowed the vehicle to crank with key and run, then a failure happened during that “Key Cycle” the anti-theft is disregarded. This is back up mode, allowing the vehicle to start and run, even without a proper exchange of the antenna around the key, that when the key is inserted, the antenna turns into a weak magnetic field. This excites the RFID chip that produces a 17-21 digit binary code. The antenna switches from a magnet, to a receiver and a proper electronic Hand-Shake occurs, allowing a 5 volt signal to the ECM to turn on spark and injectors to start. Otherwise, the customer has to enter into “Tennis Shoe Mode” and start walking. Apparently, this Ford/Mazda product does not always use an RFID chip. I have no anti-theft light “On” the instrument cluster. Just letting those who want to save money know, mine is working without an RFID chip (Invented in Sweden as Immobilizer). In Europe, if you steal a car, you can drive any direction to an other country, like Germany to Italy in a few hours.
ASE Master Tech since 1978 - Retired
Thanks for the video, it worked for me 😊
How did you remove the chip from the plastic housing?
That chip is a transponder mate be super careful with everyone without that your whole key will need reprogramming even if it just gets dropped and broken
Thank you for liking my channel.
Great video. How did you remove the key from the shell in the first place?
I'm guessing either it broke or he hammered it/pried it out (though this doesn't look super easy, I'm looking at my keys now). I'm going to try doing this soon and I'll share my results here.
That black thing at 13:59 is the chip, without that the car won't start!!
Hi
What is the battery size plz ?
I need one of these which site did you get the key fob from
He said E bay
Thank you for this video, this was very helpful for me with my Mazda 3 key :)
Thank you so much I lost the black thing inside the remote how can I get another one
That thing stores the data, i dont think u can buy one, even if you buy it wont send correct signal to engine computer to start
Thank you so much!
New battery reprogrammed but it still doest work...battery OK light works but doesn't operate ...any ideas??
Sounds like this guy lost his voice. I out it to max volume and still couldn't hear what you were saying buddy!! Speak louder buddy
That freaking spring will not load correctly, buncha crap.