Keyless Entry Not Working
04-06-2011, 12:42 PM
#1
Keyless Entry Not Working
As title says. It just worked yesterday, and I when went to unlock the doors today it doesn't do anything. The panic button, unlock/lock button, and trunk release button won't work. Tried to change the battery and still won't respond. Transmitter gone bad? Blown fuse? Thanks in advance.
04-08-2011, 05:39 PM
#2
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Join Date: Sep 2010
Location: San Jose, CA
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did you ever find out what was wrong? i have the same problem. dealer said itd be 145 to look into it, and then itll cost some more to get it replaced or what not. im like... wtff fk that id rather buy a Viper alarm system and put it in myself. that ****'s stupid.
04-09-2011, 07:53 PM
#3
After you change the battery, you apparently have to reprogram the remote. I just bought a used 04 RX8 and the guy that I bought it from said all the remote needed was a new battery and to be reprogrammed. I think his remote is actually broken though since reprogramming didn't work and he just lied to me. Nevertheless, here's how to reprogram!
- Make sure all doors are closed (trunk and hood too)
- Open the driver door and keep it open
- Sit in the car and put the key in the ignition (in the off position)
- Now (driver door is still open) you will have to do the following three steps within 24 seconds...
- Turn the key to On position (don't actually start it), then back Off. Do this step 3 times in a row (on-off on-off on-off)
- Now find the little rubber *** on the inside of the car where the driver door closes onto. Its the rubber thing that pushes in and tells the car that the door is closed, should be by your left elbow. Push that in three times in a row.
- The doors should lock and unlock a couple of times. When they stop, press a key on your remote twice! Most people use the unlock button.
- Now pull the key out of the ignition and the remote should be programmed.
The following 2 users liked this post by ace10134:
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04-01-2012, 03:40 PM
#4
Obsessive Paint Polisher
Anyone have any more info for the key fob remotes going bad? I tried the above process and got the car door locks to "lock & unlock" at the end of the steps, but neither of my remotes had any success afterwards.
For what it's worth, I did notice my remotes becoming a little slower to work over the last month or so. Now they are both inoperable. New batteries in both.
For what it's worth, I did notice my remotes becoming a little slower to work over the last month or so. Now they are both inoperable. New batteries in both.
04-01-2012, 06:16 PM
#5
hey man. i also tried the above steps. didnt work. go to autozone and they have this thing beside the cash registers where you turn this black box on and then hit a button on your remote, and if your remote is working properly, a light will light up on the black box screen. try that. and if it doesnt light up green then you know your transmitter is broke. i went to autozone and did it and the green light came on. so therefore it was my receiver (in car) that was broke or burnt out or whatever. mazda wanted too much to fix it. they always do...greedy *****. anyways hope that helps, its alot easier than it sounds.
04-06-2012, 06:58 AM
#8
look for a remove rear bumper thread, once you are able to remove it. Clean the little black box with the wire going into it, should be pretty easy to locate since its the only black box. That is the rear antenna and it gets pretty dirty. From all I have read on this problem that seems to be the most common fix.
04-06-2012, 03:36 PM
#10
Obsessive Paint Polisher
look for a remove rear bumper thread, once you are able to remove it. Clean the little black box with the wire going into it, should be pretty easy to locate since its the only black box. That is the rear antenna and it gets pretty dirty. From all I have read on this problem that seems to be the most common fix.
04-09-2012, 07:12 AM
#11
Its in this thread
https://www.rx8club.com/series-i-trouble-shooting-95/red-key-light-dash-keyless-entry-antenna-location-165856/
Not saying this is a for sure cure, just that people seem to have a lot of success doing it. I need to as well but have given up working on my huge hunk of junk
https://www.rx8club.com/series-i-trouble-shooting-95/red-key-light-dash-keyless-entry-antenna-location-165856/
Not saying this is a for sure cure, just that people seem to have a lot of success doing it. I need to as well but have given up working on my huge hunk of junk
Last edited by Cohort; 04-09-2012 at 07:21 AM.
03-05-2013, 09:59 PM
#16
same problem here, i replaced the battery in my old fob and nothing, then i bought a brand new fob online and still nothing.
i noticed a few weeks before the old fob stopped responding that the signal strength started being very weak, i was almost certain it must be the battery, but you guys say the black box thing is the receiver for the signal?
i noticed a few weeks before the old fob stopped responding that the signal strength started being very weak, i was almost certain it must be the battery, but you guys say the black box thing is the receiver for the signal?
03-06-2013, 12:54 AM
#17
you know I keep searching for this problem and found no solution. I will be taking off my rear bumper to try and clean the receiver box and if that doesn't work im taking it to mazda under warranty. I know %100 it is not the FOB itself malfunctioning.
03-06-2013, 06:08 AM
#18
Obsessive Paint Polisher
I had the dealer glance at mine while the car was in for other service. My hope was, they would check the fobs and see they were okay, then diagnose where the problem was. No luck, they called back and said, "You need a new key fob". 
As I explained that the THIRD key fob already purchased wouldn't work either! He just said, "Hhhmmm".
So they weren't much help. Now I'm sure, if I were willing to ask for more diagnostics (@ $90/hr), they would find something... else.
As I explained that the THIRD key fob already purchased wouldn't work either! He just said, "Hhhmmm". So they weren't much help. Now I'm sure, if I were willing to ask for more diagnostics (@ $90/hr), they would find something... else.
04-07-2013, 11:53 AM
#20
Okay so im going to the stearlship in the near month. questions - should I have them run the Mazda-Modular Diagnostic System for my fob? Or am I better off buying a switchblade key and reprogramming it that way? Still haven't tried to take my bumper off and clean the black box but if all else fails then ill resort to that.
04-07-2013, 10:06 PM
#22
Okay so im going to the stearlship in the near month. questions - should I have them run the Mazda-Modular Diagnostic System for my fob? Or am I better off buying a switchblade key and reprogramming it that way? Still haven't tried to take my bumper off and clean the black box but if all else fails then ill resort to that.
Last edited by Grace_Excel; 04-07-2013 at 10:15 PM.
ill let you know if I can program it correctly.
