How to Replace the Battery in a 2001 Mazda B3000 Key Fob

If your auto key isn't open doors properly, the cell battery more likely must to be replaced. Below, we demonstrate how to disassembly Mazda remote key fob and change a weak or dead battery yourself. If you choose to do it at home near B3000, use this guide, but don't forget to check all you need.
What size battery does 2001 Mazda B3000 key fob take
Before starting open key fob make sure that you have all recommended tools and materials: flat head screwdriver and one CR2032 battery.- flat head screwdriver
- 1xCR2032 battery
Step by step guide
Inside of your key fob installed tiny coin battery. Delicately try to open your keyless entry remote with flat head screwdriver. Remove 1 CR2032 battery with flat head screwdriver.
Replace old battery with fresh one CR2032. Be sure to connect the battery the right way around in a circuit. Your keyless entry remote will not work if you connect battery wrong way.
Before assembling keyless entry fob's case, make sure that all functions works by pressing buttons on circuit board.
At this point squeeze keyless entry fob's back cover together. Line your body pieces together and put it together by hands from top to bottom. Inspect your remote key fob shell for gaps. If it is not tightly closed try to repeat last step.
How to change the battery video guide
How To Replace Mazda B3000 Key Fob Battery 1999 2007
Still not working? Buy new one