Question about 2005 Mazda 6

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What caused my '05 mazda 6 key fobs to stop working

Just purchased my second key fob from Ebay. The first 2 (1 original that came with car and a used one from Ebay) stopped working gradually leading me to think it was the battery. However, after replacing the battery, the key fobs could not be re-programmed. Have tried more than 20 times. After purchasing another used key fob on Ebay, it programmed successfully the very first time. I guess this one will work for 6 months or so then die on me too. But why? What goes bad inside this thing? Does anyone know what component inside the key fob goes bad and why?

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  • Mazda Master
  • 76,846 Answers

Loss of programming maybe or a faulty keyless entry module.

Posted on Nov 02, 2012

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Posted on Jan 02, 2017

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SOURCE: key fob not working after changng battery

Bring it to a "Batteries Plus" type store; they can repair the fob if it is ony a broken battery clip. They did it for me for free! IF it is not the fob, then bring it to a dealer??

Posted on Jul 11, 2009

  • 104 Answers

SOURCE: whats wrong with my car remotes? 2003 mazda 6

sounds like keyless entry module failure or PJB box failure wiring check required

Posted on Oct 20, 2009

  • 173 Answers

SOURCE: The current key fob I

Did you try replacing the battery in the original key chain? There is a small watch battery inside that needs replacing from time to time. Your car manual will tell you how to use the keychain after changing the battery to it.

Posted on Feb 03, 2011

  • 1 Answer

SOURCE: 2006 Mazda 5 Key FOB

Both of ours did that and I put a piece of scotch tape under the battery to raise it up so it made better contact. Works great and has been working like this for close to a year now. Hope it works for you.

Posted on Apr 20, 2011

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1 Answer

I need to program a second key fob for my 08 mazda 6 with a flip out key fob


There may be alternate ways to do this but although it is expensive , it is best to take the vehicle and the new key to a service dealer centre and have the programming done properly so that the immobiliser and other operated equipment are all programmed together correctly.

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3 -- Turn the key to Off. Locks will lock/unlock, and you are out of programming mode.

I bought new remote Key Fob on Ebay and it did work properly on my Ford Transit LWB 2003. Good Luck!

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I have mazda 2 with key fob problem it locks car but will not unlock???i have to use key please help!!!!


I had a similar problem with a second-hand Mazda2, was intermittent too so the seller kept telling me it was OK. Eventually turned out to be a loose connection with the fob, I bought another off eBay and billed the garage for it, found instructions for programming it online and it's worked ever since.

May 15, 2009 | 2000 Mazda 626

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Code to program my key fob


Here are the program instructions

1. Close the vehicle doors.
2. Turn OFF the ignition.
3. Remove the key from the ignition.
4. Press and hold the driver side door lock switch in the UNLOCK position.
5. Insert the ignition key into the ignition lock cylinder and remove the key. (Do not turn the ignition key in the lock cylinder.)
6. Insert the ignition key into the ignition lock cylinder and remove the key. (Do not turn the ignition key in the lock cylinder.)
7. Insert the ignition key into the ignition lock cylinder. (Do not turn the ignition key in the lock cylinder.) Leave the ignition key in the ignition lock cylinder.
8. Release the door lock switch. The vehicle will sound three beeps in order to verify the Program Mode has been activated.
9. Press the LOCK and UNLOCK buttons together on the keyless entry transmitter and hold until the vehicle beeps twice to verify that the transmitter has been successfully programmed (this take approximately 15 seconds).
10. Perform the previous step to program up to four transmitters (including your old ones).
11. Remove the ignition key in order to exit the Program Mode

Oct 25, 2008 | 1999 Oldsmobile Intrigue

1 Answer

Need programming instructions for RKE for 2000 Mazda 626


2000 Mazda 626
Note: Make SURE the battery is new.
Instructions for programming ONE keyless remote fob.
1. Open the driver’s door & leave open.
2. Insert the key in the ignition.
3. Turn the key to the on and off position 3 times.
4. Remove the key from the ignition.
5. After door open chime stops, press the door open button 3 times.
6. After chime, press any fob key twice.
7. After second chime, press any fob key twice again.
8. After third chime, press any fob key twice again.
9. Press the door open button once.
10. The car should give another acknowledgement chime.
11. Test key fob.
This DOES work. I just programmed mine successfully today, three hours ago.

Sep 03, 2008 | 2000 Mazda 626

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