Saab Key Programming
Saab cars manufactured since 1994 use an immobilizer system that relies on keys that are coded. Adding an extra key requires the purchase of a new transponder as well as special programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool.
The problem is that it can be very expensive. Always keep an extra set of keys available.
Transponder key
The transponder is a piece of key equipped with an electronic chip. This chip sends out a signal when the key is inserted into the ignition. The car then examines the signal to determine whether it is the same as that of the key. If the signals are in sync the car will then unlock and start. This is a great method to avoid car theft and keep your car safe from thieves.
Transponder keys could be a popular addition to cars, but they are not as secure as traditional keys made of metal. The metal component of a traditional key can be easily copied and cut, but the transponder is protected by an electronic chip that guards it. This chip contains an 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. The car can only recognize the key fob when it has a chip that is unmodified and has been programmed to match. Otherwise, the car will reject the key and not start.
It is vital to have an extra Saab key. This is particularly true especially if you live in a rural region that has many car thieves. saab replacement keys is that it's possible to get a replacement key for your Saab without having to go to an auto dealer and pay the hefty prices that they charge. You can have a replacement key created on the spot for less than half the price you'd spend at an auto dealer.
Wired key
Saab cars usually come with two keys when they're new. If you only have one, you need to purchase an extra key as soon as you can. This is because if it's lost and the car is damaged, it will require an entirely new CIM and the locking cylinders replaced. This can be costly especially for used vehicles.
The next step is to connect the row and columns wires to your microcontroller. This is the most laborious aspect of the project and it will require lots of soldering. There isn't a standard way to accomplish this, however it is crucial to plan the way you'll route and solder the rows and columns. There are 22 microcontroller wires and pins that you can connect to this keyboard. It has five rows and 17 column.
Once the rows and columns are soldered, it's time to connect them to the key switches. Solder a diode to each key switch pin. This will shield the pins from current, and prevent them from getting shorted. A diode permits current to only flow in one direction. It is equipped with a visible indicator, a black band, that indicates the direction in which current will flow.
Some of the tools offered at auto parts storeslike the Autel MaxiIM IM608 PRO and IM508 -- could help customers in the shop, or even DIY customers in certain cases program replacement keys and restore the lost immobilizer's data, Sanabria says. The tools connect to the OBD port and automatically guide the user through the process, making it more simple than replacing the computer inside the vehicle.
Jumpstarting the battery
Most people keep a few sets of jumper cables in their trunk 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 electronic devices that communicate with one another. A surge in voltage while a battery is hooked up to another can fry these components and leave your vehicle unable to drive.
Start the working vehicle and allow it to run for approximately two minutes before you connect the cables to the one that is disabled. Attach the red clip on the positive terminal of the good battery. (It will say "POS" or "+".) Attach the other end to a clean unpainted metal surface under the hood of your disabled car. The engine block is a great choice. The black cable should not be connected to the negative terminal of the dead battery. This could trigger sparks, which would ignite the gasoline that is in the engine compartment.
Once the cables are connected, you can start the vehicle that is disabled and allow it to run for around five minutes before disconnecting the cables in reverse order. The battery in your Saab 9-3 will recharge as you drive. It takes a while for it to recharge again. It's a good idea invest in a spare key fob as soon as you can, because replacing the sole working one requires the installation of a new computer module and a special program to convince it that your lost keys aren't in the process of trying to steal the car.
Replacement case
Many Saab owners have only one key for their car and if they lose it, key, it will cost them. The reason is that it's not cheap to purchase a new key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. It is recommended to have a spare key in case of theft or other disaster, and the best way is to purchase a second key as quickly as you can. Even even if the key is "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 make it ready to accept a replacement key without the need to replace the entire system. This could save you a great deal of money. It's more affordable rather than wait until you loose the only key.