How to Open Your 1998 Nissan 240SX Key Fob and Change Battery

Key fob grant easy access to your 240SX. When the key fob battery is discharged you’ll not to be able close doors from distance. It's not difficult to replace the battery in your key fob with our guide. All tools, that you need is outlined in this post.
What is the battery remote key fob use
Before beginning disassembly key fob make sure that you have all required tools and materials: 1 CR2025 battery and flat head screwdriver.- 1xCR2025 battery
- flat head screwdriver
Step by step guide
A small coin battery installed in the your key fob. Carefully try to pry apart your key with hands or flat head screwdriver. Replace one CR2025 battery with flat head screwdriver.
Now it's time to install new battery in keyless entry fob's body. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check position on battery, by "+" mark.
After the new battery installed, verify remote key fob by pressing buttons. If all functions works, assemble your keyless entry fob's shell in reverse order.
The last thing to do is put your cover back on fob. Delicately try to put the two halves in place by hands from top to bottom. If your key shell firmly closed, we done. If not, repeat the last step.
How to replace the battery video instruction
How To Replace Nissan 240 SX Key Fob Battery 1995 1996 1997 1998
Still not working? Buy new one