2009 Mazda3 Sedan - New Battery. Cannot reset key-less entry.

[eatasandwich]

I've been having multiple electrical problems with my out of warranty 2009 Mazda3. It's been back in the shop a couple of times.
According to the guy who has been working on it a host of loose connections, wiring problems and a faulty "passenger side junction box" have all been fixed and replaced.
It's amazing how difficult/dangerous it is to drive in the rain if your wipers stop working, and amazing how much it costs to have them fixed.
Anyway, most things do actually appear to be working now, with the exception of key-less entry/locking.

I have a new battery, and I know that when you replace it you'll have to reprogram the remote etc. Unfortunately, when using the reprogramming steps that are described in the link below, I cannot get the locking system to cycle after closing/opening the drivers door the third time.

http://www.justanswer.com/mazda/4bga6-2009-mazda-3-keyless-entry-remote-not-part-system-stopped.html

I have used this method successfully in the past. At least I think I've used this one. It's certainly easy enough to follow these steps, and last time I tried things went fairly smoothly. I know what the locking cycle sounds like. I cannot think of any step I can alter slightly to try and make it work. I've tried...for way too long.

So what's the next step? I can live with having to lock my doors manually, but don't want to have to. It seems like it should be an easy problem to solve. What fuse / connection problem should I be looking for?

 

[rsvinylgraphics]

I've never had to reprogram the keyless entry remote after disconnecting the battery. I think you might
have a different issue.

 

[eatasandwich]

My battery was replaced along with several other parts. I've read somewhere (possibly on this forum) that sometimes this causes the key-less entry to need resetting.
Regardless, the key-less entry was working, the battery was replaced, and now the key-less entry is not working. I'd like to know what to check.
It's fairly reasonable to assume that the two are related no?

 

[rsvinylgraphics]

Try this procedure




Have all the remotes that you are going to be using, maximum of 3, with you when you do this programming as all of them have to be reprogrammed into memory.

Step 1: Open driver side door and leave open.

Step 2: Lock and Unlock the drivers door using the power door lock switch on the door

Step 3: Insert key into the ignition.

Step 4: Turn Key to ON position and return to Lock (off) position. Do this 3 times within 10 seconds. LEAVE key in the ignition in Lock (off) position.

Step 5: Close and open the drivers door 3 times. Leave door open after this step

Step 6: ECU should respond by locking and unlocking the doors once.

Step 7: Press any button on remote #1 twice. ECU responds by locking and unlocking the car doors.

Step 8: Additional remotes, repeat Step 7 for up to 3 remotes total.

Step 9: Remove the key from the ignition and the ECU will respond a final time with a series (about 4) of door locks and unlocks. You're done!

 

[eatasandwich]

This is what I have been doing. Step 6 doesn't happen, and because of this the last 3 steps don't happen either.
I'm pretty sure I'm not messing up the process, and most likely the problem is wiring or fuse related.
One of the problems I have is not knowing which fuse to check.

 

[MikeHTally]

The wiper issue sounds like the recall that recently came out. As for the remotes not working after battery replacement, I've never heard of that. I've had the battery disconnected in my Mazda a couple of times with no issues except needing to restore the station presets and the clock. I've had the battery out of my Ram MANY times with only those same issues.

Not likely to be a fuse. Once a fuse blows, it doesn't heal itself. Remember, the car learns the remote, not the other way 'round.