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saab replacement keys Key Programming

Saab cars that were built prior to 1994 have an immobilizer system based on coded keys. Adding an extra key requires a new transponder, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool.

It can be costly. You should always keep an extra set of keys available.

Transponder key

The transponder keys are keys with an electronic chip that sends a signal to the car when it is put into the ignition. The car is able to check whether the signal matches with the one on the key. If the signals are in sync, the car will open and start. This is a great way to protect your vehicle from theft.

Transponder keys are an increasingly popular feature in automobiles, but you should be aware they're not as secure as classic metal keys. The metal component of a traditional keys can be easily cut and copied, whereas transponders have an electronic chip that protects it. The chip contains a unique code that is inserted into a car's computer order to identify it.

The car will recognize the Saab keyfob, and allow it to be turned on. The car will only recognize the key fob if it is equipped with an unmodified chip and has been programmed to match. The car will not start in the event that the key has not been programmed to match.

It's essential to ensure that you have an extra key for your Saab. This is especially true when you live in a rural region where there are a lot of car thieves. The good news is that it's possible to get a replacement key for your Saab without having to go to a dealership and pay the hefty prices that they demand. You can get the replacement key on the spot for less than half of what you would spend at the dealership.

Wired key

Saab cars usually come with two keys when new. If you only have one, it is best to acquire an extra key fob as soon as possible as if you lose it, the car will require a new CIM unit, and the locking cylinders need to be replaced. This can be expensive especially for used vehicles.

The next step is to connect the row and columns wires to your microcontroller. This is the most challenging part of the project and will require a good deal of soldering. It's not a standard way to do it, but you must plan how to program saab 9-3 key fob to route and solder each column and row. There are 22 microcontroller pins and wires to connect for this keyboard. It includes 5 rows and 17 column.

After the rows and column are soldered together, it is time to connect the key switches. Solder a diode on each key switch pin. This will protect the pins from current and prevent them from being cut off. A diode only allows current to flow in one direction, and it also has a a black band visual indicator that indicates the direction current will flow.

A few of the tools that are available at auto parts stores -- such as the Autel MaxiIM IM608 PRO and IM508 -- can assist customers at the shop or DIY customers in certain cases program replacement keys and restore lost immobilizer data Sanabria says. The tools connect to OBD ports and help the customer through each step and make the process more straightforward than replacing the car's computer.

Jump-starting the battery

The majority of people have a set of jumper cables in their trunk in case of emergency however, jumping a battery in newer automobiles might not be the best idea. They have numerous computers and digital devices that communicate with one another. A voltage spike when a battery is hooked up to another battery could fry the components and render your car undriveable.

Connect the cables to the vehicle that is operating. Let it run for two minutes. 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 under the hood of the disabled vehicle. The engine block is a great alternative. The black cable should not be connected to the negative terminal of the dead battery. This could trigger a spark, which would ignite gasoline in the engine compartment.

Once the cables are connected, turn on the disabled vehicle and let it run for about five minutes before disconnecting the cables in reverse order. The battery in your Saab 9-3 will be recharged as you drive. It will take some time for it to fall back. It's a good idea to purchase a spare key fob as soon as you can, because replacing the only working one requires the installation of a new computer module and a special program to convince it that the lost keys aren't in the process of trying to steal the car.

Replacement case

Many saab 93 key programming owners only have one key for their car and if they lose that the cost will be. It's expensive to purchase keys and will require replacing the CIM or TWICE for older models. It is recommended to have a second key in the event of theft or other disaster and the best option is to buy an extra key as quickly as you can. Don't buy a secondhand key even it's "new." Claimed-new keys from sellers selling aftermarket keys won't be effective and are almost guaranteed to fail in the crucial moment.

Most locksmiths aren't able to help if you have only one working key and the dealer will charge you high prices to replace the computer in your car to make a new replacement. We can, however, reset and re-program your computer's EEPROM to prepare it to accept the new key, without replacing the entire system. This can save you a great deal of money. It's also cheaper than waiting until you lose your sole key.