https://anotepad.com/notes/ncj9ajaa How to Repair a Remote Key While the majority of remote key fobs come with amazing battery lives, they will eventually wear out. Sometimes it's as simple as changing the batteries, but occasionally there are more serious issues. An easy fix that could aid is to disassemble the remote and cleaning the buttons before moving them in and out. These techniques might be all you need to get your key fob working. Battery Car key remotes use CR2025 or CR2032 batteries and can usually be replaced in the event that the device is operational. If not, you can look at the battery terminals and buttons to see if there are any loose parts. The terminals and buttons can be re-soldered back into place but you'll need be aware of the exact kind of battery is used by your fob. If the battery isn't the problem you can try a backup key fob to see whether you are able to unlock or start your vehicle with it. If it's possible, it's probably time to replace your primary fob. If not then you'll require a professional to inspect it to determine the issue. It could be a simple reset, or it could require other types repair. It could also be that your vehicle has forgotten the fob. This is not something you can fix on your own. Case Study The case of remote keys is the plastic case that surrounds it and usually comes with the button pad that is replaced. It is recommended to purchase an entirely new case as the original is likely to be very filthy. It is vital that the circuit board in the case is correctly placed. The circuit board is what controls the key fob's function. You can test it using a multimeter set to RF (radiofrequency) mode and a radio scanner that is tuned to the same frequency as the key fob. Check the contact points on the keys on the keypad. They could be loose over time or broken. Carefully soldering them back in their original position can usually restore them to their original function unless they break completely. Buttons If the buttons