saab car key replacement Key Programming

Saab cars made since 1994 have an immobilizer feature that is based on codes for keys. The addition of a key requires a new transponder, as well as special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.

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

Transponder key

The transponder key comes equipped with an electronic chip. It transmits a signal to the car when it is placed in the ignition. The car then checks the signal to see if it matches the one in the key. If the signals match the car will then open and start. This is a fantastic way to guard your car against theft.

Transponder keys may be an extremely popular accessory for cars, but they're not as safe as traditional keys made of metal. The metal part of the traditional keys can be easily cut and copied, however a transponder has an electronic chip which protects it. The chip is equipped with a unique code that is programmed into the car's computers to identify it.

The car will recognize the Saab keyfob and allow it to turn on. However, it will only do this if your key fob has a non-modified chip that has been programmed to match. The car won't start in the event that the key has not been programmed to match.

It's important to make sure that you have an extra key for your Saab. This is particularly important when you live in a rural location that has many car thieves. The good part is that you can get a replacement key for your Saab without needing to visit a dealer and pay the hefty prices they ask. You can have a replacement key created on the spot for less than half what you would spend at dealerships.

Wired key

saab key programmer cars typically come with two keys when they are new. If you have only one, it is a good idea to get an extra key fob as soon as you can, because if you lose it the car will require the replacement of a CIM unit, and the locking cylinders will need to be replaced. This can be expensive especially for cars that are used.

The next step is to connect the wires for columns and row to your microcontroller. This is the most challenging part of the project and will require a great amount of soldering. There is no standard method to accomplish this, however it is essential to determine the routes you'll use to solder the rows and columns. For this keyboard, there are five rows and 17 columns. This means there will be 22 microcontroller wires and pins that you need to connect.

After the rows and column are soldered together, it is time to connect the key switches. To do this you must place a diode on each pin of the key switch and then solder it. This will shield the pins from current, and prevent them from being cut off. A diode permits current to only flow in only one direction. It comes with a visual indicator, a black band, that shows which way current will flow.

Some of the tools offered at auto parts stores -- such as the Autel MaxiIM IM608 PRO and IM508 -- can help customers in the shop, or even DIY customers in some cases create replacement keys and Saab Car Key Replacement restore lost immobilizer data Sanabria says. The tools connect to OBD ports and guide the customer through each step making the process simpler than replacing the car's computer.

Jump starting the battery

A lot of people keep a set of jumper cables in their trunks for emergencies however, jumping a battery on modern vehicles might not be the most efficient option. These cars have a variety of digital and computer systems that communicate with each other. A surge in voltage while a battery is hooked up to another could cause damage to these components and render your car unable to drive.

Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal on 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 car's hood. The engine block would be an ideal choice. Do not connect the black cable to the negative terminal on the dead battery because it could ignite an ignition that ignites the gasoline in the engine bay.

Once the cables are connected the vehicle you are not using and let it run for about five minutes before you disconnect them in reverse order. Be aware that the battery in your Saab 9-3 is charged during your drive, which means it will take a while to get the battery back down again. It is a good idea to buy a spare key fob as soon as you can, since replacing the sole working 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

Saab owners typically only have one car key, and if it is lost, they'll be charged. It's expensive to purchase a key and requires replacing the CIM or TWICE in the case of older models. In the event of theft, or any other disaster it is best to have a spare key. However, don't purchase a secondhand key, even the case that it's "new." Keys that are claimed as new from sellers selling aftermarket keys won't work and are almost guaranteed to fail in the crucial moment.

The dealer will charge you top dollar for only one working key. However, we can reset and re-program the computer's EEPROM to prepare it to accept an alternative key without replacing the whole system. That can help you save money. It's less expensive rather than wait until you loose the only key.