installed new battery...few problems

[Pro5.0]

Hopefully someone here knows about this. I installed a new battery today and now my head unit (stock) does not work. Also, my remote locks do not work, I have to lock it with the button in the car. Anyone know why? Or how to fix this?

 

[evilmonkeyMSP]

have any issues when you installed your battery? Try checking all the fuses in the car...something might have blown...

 

[GhostMercury]

i would say you prolly blew a fuse

 

[Pro5.0]

I checked the fuses, none of the related fuses are blown...is there a radio reset code or something?

 

[GhostMercury]

make sure you have a good connection

 

[Pro5.0]

for the fuses? or the battery? I can start the car and everything seems to be working fine, except the radio and the remote door locks (keep in mind, the power door locks work fine when pressed)

 

[NCZ13]

ive taken off and removed my battery several times this past 2 days and never had a problem w/ this.

maybe you somehow shorted something out?

 

[GBean]

See if you are able to re-program your car to your remotes. {search for instructions in the forum.) That should tell you if something is broken. A lot of other manufacturers have unlock codes for the oem head units. Your owner manual will tell you... But I have not heard that mazda does this.

 

[TheMAN]

did you connect the new battery positive terminal first or negative?

 

[Pro5.0]

Not sure on which I connected first, but I did finally notice when I was looking at it at night that the dome lights were all out as well. So I looked at the #8 fuse, which is for these lights and sure enough, the fuse was out. I had looked in the owners manual for fuse locations and it said that #3 was for the radio, but that one was fine, I guess by radio it meant actual radio reception? Turns out the #8 is for the head unit and dome lights and remote locks. Problem solved. Still do not know why it went out though. Very odd.

 

[TheMAN]

it blew because you didn't pay attention which terminal you were connecting first and you most likely connected the negative terminal first which is a big no no.... weird s*** happens when the electronics reinitializes this way