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saab 9-3 key fob replacement Key Programming

Saab cars produced since 1994 feature an immobilizer that relies on coded keys. A new transponder is required for addition of a second key, and special programming. This is usually done by the dealer using the Tech2 diagnostic tool.

The problem is that this could be extremely expensive. This is why you should always have a spare key on hand.

Transponder key

The transponder key is a key with an electronic chip that sends a signal back to the car when it is placed in the ignition. The car is able to check if the signal matches the one on the key. If the signals are in sync the car will then open and start. This is a great method to stop car theft and keep your vehicle secure from thieves.

Transponder keys could be an extremely popular accessory for automobiles, but they are not as secure as traditional keys made of metal. While the metal component of a conventional key can be cut and copied, a transponder is protected by an electronic chip. This chip contains a unique code that is programmed into the car's computer to identify it.

When a Saab key fob is used, the car recognizes it and allows it to turn on. However, it can only do this if your key fob has an unmodified chip that has been programmed to match it. 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. This is particularly important when you live in a rural area where there are numerous car thieves. You can purchase a new key for your saab 93 key replacement by visiting the dealership and not paying their high prices. You can get a replacement key made on the spot at a fraction of the price you'd pay at the dealership.

Wired key

Saab cars usually come with two keys when they are new. If you own only one, it is recommended to get an additional key as fast 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 column and row wires to the microcontroller. This is the toughest part of the project and it will require a lot of soldering. There isn't a standard way to do this, but it is essential to determine the way you'll route and solder the rows and columns. There are 22 microcontroller pins and wires to connect to this keyboard. It has 5 rows and 17 columns.

After the columns and rows are soldered, it's the time to connect them to the key switches. Solder a diode to each key switch pin. This will protect the pins on the key switch from current and also prevent them from being shorted. The 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.

Sanabria states that some of the tools offered in auto parts stores, such as the Autel MaxiIM IM608PRO or IM508 can assist customers who are shopping or DIY users to program replacement keys and restore immobilizer information. The tools plug into the OBD port and guide the user through the process, making it more simple than replacing the computer in the vehicle.

Jump starting the battery

Most people keep a few sets of jumper cables in their trunks in case of emergency however, jumping a battery in newer vehicles may not be the best option. These vehicles are equipped with electronic devices and computers that communicate with each other. A voltage spike when the battery is connected another one could cause damage to the parts, rendering your car undriveable.

Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal of the battery that is good (it will have "POS" or "+" on it). Attach the other end of the black cable to a clean, unpainted metal surface beneath the damaged vehicle's hood. An engine block is an ideal choice. Don't connect the black cable to the negative terminal on the dead battery because this could cause an ignition that ignites the gasoline in the engine bay.

Once the cables are connected, start the disabled vehicle and let it run for about five minutes before disconnecting them in reverse order. Be aware that the battery of your saab ignition key 9-3 is recharged during your drive, which means it may take some time for the battery to come back down again. It's a good idea to buy a spare key fob as soon as you can, since replacing the only functioning one requires the installation of a brand new computer module and a special program to convince it that your lost keys aren't attempting to steal the car.

Replacement Case

Many saab 93 key owners only have one key for their car and if they lose that key, it will cost them. It's expensive to add a key and requires replacing the CIM or TWICE in the case of older models. It is recommended to have a second key in the event of theft or any other catastrophe and the best option is to purchase a second key as quickly as you can. Even it's "new", it will not work.

The dealer will charge you the highest dollar for only one working key. We can reset and reprogram the computer's EEEPROM to be able to accept a new key without having to replace the entire system. This can save you a lot of money. It's also less expensive than waiting until you lose your one key.