15 Reasons Why You Shouldn't Be Ignoring Key Repair

How to Repair a Remote Key

Although many remote key fobs boast impressive battery lifespan, they eventually wear out. Sometimes it's as simple as replacing the batteries, but occasionally there are more serious problems.

A quick fix that can help is taking apart the remote by cleaning the buttons and moving them in and out. These methods could be all you need to get your key fob working.

Battery

Car key remotes use CR2025 or CR2032 batteries and can usually be replaced when the fob is functional. If it isn't, you can open the fob and inspect the battery terminals and buttons for any signs of looseness or damaged parts. It is usually possible to solder the terminals and buttons back into place. However, you will need to know what kind of battery is being used in your fob.

If the battery isn't the issue you can try a backup key fob to determine if you can start or unlock your vehicle using it. If you're able to, it's probably time to replace the primary fob. If not, a professional check is necessary to determine the reason it's not working correctly. It could be as simple as reprogramming, or it could require other types of repair. It could also be that your vehicle has lost the fob. This isn't something you can tackle on your own.

Case Study

The outer plastic housing of a remote is referred to as the case. It usually comes with an alternative button pad. It is best to use the latest case as the original will likely to be extremely grungy. Additionally, 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 scanner that is tuned to the same frequency as the key fob.

Another thing to check is the contact points for buttons on the keypad. They may have become loose or broken over time. Soldering them back in place will often allow them to return to full functionality, except if they break completely.

Buttons

IF your key fob buttons no longer work or are difficult to press you may need a dorman or motormite remote key housing replacement could be purchased online for a reasonable price for your year/make and model. Then, you can slide the circuit board from your old case into the new. On some models you may have to adjust the board's position slightly. Then, you can use aluminum foil using double-sided tape to adhere to the black contact points on the buttons.

Programming

The key fob is connected with the receiver of your vehicle, and this connection could be damaged. A professional will assess the car to determine the manufacturer, year of the vehicle, year of manufacture and model. They use specialist equipment to re-pair or program the fob with a blank transponder chip (or make a key replica in the event that it is possible). Then they will test the remote to make sure it functions.

It is essential to be cautious when programming the blank key, because the process is often complicated and different manufacturers require slightly different steps. It is also possible to miss a step, or wait too long before exiting the programming mode, which is why it is recommended to hire professionals with extensive knowledge of your car's security system to minimize the risk of damaging the car. Certain programming tools can also be capable of reading diagnostic trouble codes from your vehicle. This can assist in fixing or resolving any other issues.