Saab Key Programming
Saab cars made since 1994 use an immobilizer system that relies on a set of keys. saab replacement key is required to allow the inclusion of an additional key, and special programming. This is usually done at the dealer, using a specially-designed Tech2 diagnostic tool.
It can be costly. This is why you should always have a spare key available.
Transponder key
The transponder is a type of key that is equipped with an electronic chip. The chip sends a signal when the key is inserted into the ignition. The car checks to see whether the signal is the same as the one on the key. If the signals are identical the car will be able to unlock itself and start. This is a fantastic way to guard your car against theft.
Transponder keys are a popular feature in automobiles, however you should be aware that they are not as secure as classic metal keys. While the metal portion of a traditional key could be cut and copied the transponder is protected by an electronic chip. The chip is a unique code that is inserted into a car's computer in order 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 if it is equipped with an unmodified chip and has been programmed to match. In the absence of that, the car will reject the key and not start.
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 that is home to numerous car thieves. You can obtain a replacement key for your Saab by visiting the dealership without paying high cost. In most cases, you can have an original key made on the spot for less than half the cost of what you'd pay at an auto dealer.
Wired key
Saab cars are usually delivered with two keys. If you only have one, it is an ideal idea to purchase an extra key fob as soon as is possible since if you lose it, your car will require a new CIM unit and the locking cylinders need to be replaced. This can be expensive particularly for used cars.
The next step is to connect the wires for columns and rows to your microcontroller. This is the most challenging part of the project and will require a great amount of soldering. There's no standard way to accomplish this, however it is essential to determine the route you'll take and solder the columns and rows. There are 22 microcontroller wires as well as pins to connect for this keyboard. It has five rows and 17 columns.
Once the rows and columns are soldered, it's time to connect them to the key switches. Solder a diode on each key switch pin. This will protect the pins from current, thus preventing them from being cut off. A diode lets current only flow in one direction. It comes with a visual indicator that is black, that shows the direction in which the current will flow.
Sanabria says that a few of the tools that are sold in auto parts stores, like the Autel MaxiIM IM608PRO and the IM508 can assist customers who are shopping or DIY users to program replacement keys and restore data from the immobilizer. The tools plug into OBD ports and guide the customer through each step, making the process easier than replacing the car's computer.
Jumpstarting the battery
A lot of people keep a set in their trunks to jump-start a car in case of emergency, but this might not be the best idea for newer cars. These vehicles are equipped with numerous digital and computer systems that communicate with one another. A voltage spike when batteries are connected to another one could cause damage to the parts making your car unusable.
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 say "POS" or "+".) Attach the other end to a clear, unpainted metal surface underneath the hood of the 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 result in sparks, which would ignite gasoline in the engine compartment.
After the cables have been connected, begin the car and allow it to run for around five minutes. Then, disconnect them in reverse. Be aware that the battery in your Saab 9-3 is recharged when you drive, and it will take a while to get the battery back to normal. It's a good idea invest in a spare key fob as soon as you can, since replacing the only working one requires the installation of a brand new computer module and special programming to convince it that your missing keys aren't attempting to steal the car.
Replacement Case
Many Saab owners have only one key for their car and if they lose it, it's going to cost them. It's costly to add keys and will require replacing the CIM or TWICE in the case of older models. In the event of theft or other catastrophe, it is best to have an extra key. Even even if the key is "new", it won't work.
The dealer will charge you top dollar if you have only one working key. However, we can reset and re-program your computer's EEPROM in order to prepare it to accept an alternative key without replacing the whole system. This can help you save money. It's also less expensive than waiting until you lose your one key.