General Tech Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.

FOB syncing issues with Mazda 3

Thread Tools
 
Search this Thread
 
Old Jan 4, 2023 | 08:11 PM
  #1  
JBABZ's Avatar
Thread Starter
|
Junior Member
Joined: Dec 2022
Posts: 5
Likes: 0
From: Adelaide
Default FOB syncing issues with Mazda 3

Hey All
I have a Mazda 3 Hatch 2005, and recently changed batteries on my FOB. When i went to lock/unlock my car, the car wasnt locking/unlocking
The red light came up on my FOB to signify that the batteries were working. so i decided to look online to sync the FOB keys to the car again incase it resetted for some reason

Anyways i did the whole process of keys in the ignition, door open, turn on off 3 times ect. That all worked fine as the locks closed and opened to activate ON MODE to SYNC the FOB. Then i pressed the FOB button to sync the keys, and then the locks opened/closed to signifty the end of the SYNCING MODE.

Yet when i went to use the FOB button to lock/ unlock the car, it didnt work.
For some reason the FOB is not registering, any idea why?

Its a weird one because the keys work as the red light comes up, but the car isnt picking the FOB signal up
i can only think maybe theres an issue on the cars signal to register the keys. Does it have a FUSE that might be stuffed ect? if so which fuse is it?

help much appreciate

John
 
Reply
Old Jan 13, 2023 | 07:53 PM
  #2  
LubeTechCurT's Avatar
Junior Member
Joined: Jan 2023
Posts: 2
Likes: 0
From: south carolina
Default

Originally Posted by JBABZ
Hey All
I have a Mazda 3 Hatch 2005, and recently changed batteries on my FOB. When i went to lock/unlock my car, the car wasnt locking/unlocking
The red light came up on my FOB to signify that the batteries were working. so i decided to look online to sync the FOB keys to the car again incase it resetted for some reason

Anyways i did the whole process of keys in the ignition, door open, turn on off 3 times ect. That all worked fine as the locks closed and opened to activate ON MODE to SYNC the FOB. Then i pressed the FOB button to sync the keys, and then the locks opened/closed to signifty the end of the SYNCING MODE.

Yet when i went to use the FOB button to lock/ unlock the car, it didnt work.
For some reason the FOB is not registering, any idea why?

Its a weird one because the keys work as the red light comes up, but the car isnt picking the FOB signal up
i can only think maybe theres an issue on the cars signal to register the keys. Does it have a FUSE that might be stuffed ect? if so which fuse is it?

help much appreciate

John
open the fuse box and to the top left (i could be wrong but pretty sure it is the top left) there is a "room furse". Pull it out and put it back in and see if that works.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JBABZ
Mazda3
2
Dec 30, 2022 11:23 PM
rterob
Mazda Miata (MX-5)
0
Feb 9, 2020 05:57 AM
gregmazda
Mazda CX-5
0
Nov 20, 2019 08:34 PM
NewMazda2owner
Mazda2
1
Aug 6, 2019 11:36 AM




All times are GMT -5. The time now is 05:40 PM.