How to Replace the Battery in a 2003 Mazda B2300 Key Fob

How to Replace the Battery in a 2003 Mazda B2300 Key Fob

If your Mazda key is not unlock doors well, the cell battery likely must to be changed. In this post, we walks you through how to open your car keyless entry remote and replace your Mazda key battery.

What type battery remote key fob use

Prior to open keyless entry remote check all that you need: one CR2032 battery and flat head screwdriver.
  • 1xCR2032 battery
  • flat head screwdriver

Simple steps to change the battery in your car's keyless entry remote

Inside of your keyless entry remote installed coin cell battery. Accurately try to disassemble your fob with pry tools. Remove 1 CR2032 battery with flat head screwdriver.

Now it's time to install new battery inside fob’s case. Battery must be placed with the same position as was a previous. Your remote key fob will not work if you mistakenly put battery wrong way.

When the new battery installed, verify key fob by pressing buttons. If all functions works, assemble your fob’s case in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your case pieces together and assemble it in place by hands from top to bottom. If your key fob case firmly closed, we done. If not, repeat the last step.

Video of key fob opening

How To Replace Mazda B2300 Key Fob Battery 2001 2009

Still not working? Buy new one

FAQ

Key fob of Mazda B2300 require 1xCR2032 batteries. Price for CR2032 batteries are under $4 depending on the size packaging, type and brand you buy. You can take old battery to the store, to find a proper replacement.

Remote key fob in most of cases do not need to be reprogrammed after battery change. If your keyless entry remote not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Yes, you can change battery in your 2003 Mazda B2300 key fob yourself. Most hard part is to disassembly fob’s case. It's pretty simple with our guide.

The price to replace the battery in remote key fob is in range $50-600 depending on the brand and the service station.

Remote key fob batteries in Mazda B2300 should be replaced every three years, but this will differ based on usage and build quality. If your remote key fob shortened signal strength, you should replace batteries before it stop open doors and make problems for you.

If your Mazda has low key battery indicator on dashboard, signal strength reduced, key fob buttons not working or need multiple clicks to unlock or lock doors, in most cases battery replace in remote key fob required. Currently installed battery is weak or dead with a high probability, but if it's not help, remote key fob replace or repair required.
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Fob Compatibility:

  1. FCC ID: CWTWB1U331
  2. Models: 2001-2009 Mazda B2300