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saab 9-3 key fob replacement (read this) Key Programming

Saab cars manufactured since 1994 have an immobilizer feature based on coded keys. A new transponder is required for inclusion of an additional key, and special programming. This is usually done by the dealer using a special Tech2 diagnostic tool.

It can be costly. It is always advisable to keep a spare set of keys available.

Transponder key

The transponder can be described as a key equipped with an electronic chip. This chip sends out a signal when the key is placed into the ignition. The car then checks to see whether the signal matches with the one on the key. If the signals are identical the car will be able to unlock itself and start. This is a great way to stop car theft and keep your car safe from thieves.

Transponder keys are a popular feature in cars, but you must be aware that they're not as secure as traditional metal keys. The metal portion of a traditional keys can be easily cut or copied, while transponders have an electronic chip that safeguards it. The chip has an individual code that is programmed into the car's computers to identify it.

The car will recognize the saab 9-3 key fob replacement keyfob, and allow it to turn on. The car can only recognize the key fob if it is equipped with a chip that is unmodified and has been programmed to match. The car will not start when the key isn't programmed to match.

It's important to make sure that you have a spare key for your saab car keys. This is particularly important if you live in a rural area, where there are numerous car thieves. You can obtain a replacement key for your Saab by visiting the dealership, without having to pay their high prices. You can get an original key made on the spot for less than half the cost you would pay at the dealership.

Key for Wired

Saab cars typically come with two keys when they are new. If you own only one, you should get an additional key as quickly as you can. This is because if the key is lost and the car is damaged, it will require a new CIM and the locking cylinders replaced. This can be expensive especially for cars that are used.

The next step is to wire the row and column wires to the microcontroller. This is the most difficult part of the project, and will require lots of soldering. There isn't a standard way to accomplish this, but it is essential to determine the route you'll take and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns, which means there will be 22 microcontroller wires and pins to connect.

After the rows and column are joined, it is time to connect the key switches. To do this you must place a diode over each pin on the key switch and then solder it. This will protect the pins that are used for key switches from current and also prevent them from being shorted. A diode allows current to flow in one direction, and it comes with a a black band visual indicator that indicates the direction current will flow.

Some of the tools available at auto parts stores -- such as the Autel MaxiIM IM608 PRO and IM508 -- could aid shop customers or DIY customers in certain instances create replacement keys and restore lost immobilizer data Sanabria says. The tools connect to the OBD port and guide the user through the procedure, making it much easier than replacing the computer inside the vehicle.

Jump starting the battery

Most people keep the set in their trunks to jump-start a car in case of emergency, but it may not be a good idea for newer cars. These vehicles are equipped with many electronic devices and computers that communicate with one another. A voltage spike when a battery is hooked up to another battery could fry these components and render your vehicle unable to drive.

Start the vehicle that is working and allow it to run for around two minutes before you connect the cables to the one that is disabled. Attach the red clip to the positive terminal of the battery that's good. (It will read "POS" or "+".) Attach the other end to a clean, unpainted metal surface underneath the hood of the disabled vehicle. The engine block is an excellent choice. The black cable should not be connected to the negative terminal of the dead battery. This could result in sparks that could ignite the gasoline in the engine compartment.

Once the cables are connected the disabled vehicle and allow it to run for around five minutes before you disconnect them in reverse order. The battery in your Saab 9-3 will be recharged while you drive. It takes a while for it to fall back. It is a good idea to buy a spare key fob as soon as you can, since replacing the only working one requires the installation of a brand new computer module and a special program to convince it that your missing keys aren't trying to steal the car.

Replacement case

Many Saab owners only have one key for their vehicle and if they lose it, the cost will be. The reason is that it's not inexpensive to replace a key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. It is recommended to have a second key in the event of theft or any other catastrophe the best solution is to purchase a second key as soon as you are able to. Don't buy a secondhand key, even the case that it's "new." Keys that are claimed-new purchased from third-party sellers won't work and are likely to fail at the crucial moment.

The dealer will charge you top dollars if you only have one working key. We can reset and reprogram the computer's EEEPROM in order to make it ready to accept a replacement key without replacing the entire system. This could help you save a significant amount of money. It's more affordable than wait until you lose the sole key.