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Saab Key Programming

Saab cars made since 1994 come with an immobilizer system made up of coded keys. To add an additional key, you need the purchase of a new transponder as well as special programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool.

This can be expensive. Always keep a spare set of keys on hand.

Transponder key

The transponder can be described as a key with an electronic chip. This chip sends out a signal when the key is put in the ignition. The car then checks the signal to determine if it matches the one that is in the key. If the signals are in sync then the car will be able to unlock and begin. This is a great way to protect your vehicle from theft.

Transponder keys may be an increasingly popular feature for cars, but they are not as secure as traditional metal keys. While the metal part of a conventional key can be cut and copied, a transponder is protected by an electronic chip. The chip has an unique code that is programmed into the car's computer to identify it.

The car will recognize the saab 9-3 key fob programming keyfob and permit it to turn on. But, it's only able to do so if the key fob has an unmodified chip that has been programmed to match the original. Otherwise, the car will reject the key and won't start.

It is important to have a spare Saab key. This is particularly important when you live in a rural region that has numerous car thieves. The good part is that you can get a replacement key for your saab key code without having to go to an auto dealer and pay the high prices they ask. You can have a replacement key made on the spot for less than half of what you would spend at an auto dealer.

Wired key

saab key fob repair cars typically come with two keys when they are new. If you only have one, it's best to acquire an extra key fob as quickly as you can, because if you lose it the car will require the replacement of a CIM unit and the locking cylinders will have to be replaced. This can be expensive, especially for used cars.

The next step is to connect the row and column wires to the microcontroller. This is the most difficult part of the project, and will require lots of soldering. There is no standardized way to do this, but it's important to plan out how you will route and solder the rows and columns. There are 22 microcontroller wires and pins that you can connect to this keyboard. It includes 5 rows and 17 columns.

After the columns and rows are joined after which it is time to connect the key switches. Solder a diode to each key switch pin. This will shield the key switch pins from current and also prevent them from being shorted. A diode allows current to only flow in one direction. It has a visual indicator with a black band that indicates the direction in which current will flow.

Some of the tools you can find at auto parts stores -- such as the Autel MaxiIM IM608 Pro and IM508 -- can help shop customers or even DIY customers in certain instances program replacement keys and restore the lost immobilizer's data, Sanabria says. The tools connect to the OBD port and guide the customer through the process, making it easier than replacing the computer inside the vehicle.

Jumpstarting the battery

A lot of people keep a set of jumper cables in their trunks in case of emergency, but jumping a battery for newer vehicles might not be the most efficient option. These cars have a variety of digital and computer systems that communicate with one another. A surge in voltage when a battery is hooked up to another can fry these components and leave your car unable to drive.

Start the vehicle that is working and let it run for about two minutes before connecting the cables to the one that is disabled. Attach the red clip on the positive terminal of the battery that is good. (It will read "POS" or "+".) Attach the other end to a clear, unpainted metal surface underneath the hood of your disabled vehicle. The engine block is an excellent option. Do not connect the black cable to the negative terminal on the dead battery, as it could ignite an ignition spark that ignites the gasoline in the engine bay.

After the cables have been connected, start the vehicle and allow it to run for around five minutes. Then disconnect the cables in reverse. Keep in mind that the battery on the saab replacement key programming 9-3 will be charged during your drive, which means it can take a while to get the battery down. You should purchase a second key fob, as soon as possible. The replacement of the one that works requires the installation and programming of a new computer chip.

Replacement case

Saab owners often only have one car key, and if it is lost, they will be charged. The reason for this is that it's costly to replace a key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, as well as programming. In the event of theft, or any other disaster it is recommended to have an extra key. Even it's "new", it will not function.

Most locksmiths aren't able to help if you have only one working key and the dealer will charge top dollar to replace the computer in your car to make a replacement. We can, however, reset and re-program the computer's EEPROM to accept the new key without having to replace the entire system. This could save you a significant amount of money. It's cheaper to do this rather than wait until you loose the only key.