Saab Key Programming
Saab cars made since 1994 feature an immobilizer mechanism based on coded keys. In saab key programming near me G28 to add a second key, it requires a new transponder, as well as special programming. This is usually handled by the dealer using a Tech2 diagnostic tool.
The issue is that this could be very costly. This is the reason why you should always keep a spare key in your possession.
Transponder key
The transponder key comes with an electronic chip that sends a signal back to the car when it is inserted into the ignition. The car then examines the signal to determine whether it matches the one in the key. If the signals are in sync it will unlock and begin. This is a great way to deter car theft and keep your vehicle secure from thieves.
Transponder keys may 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 traditional key could be cut and copied, a transponder is protected by an electronic chip. The chip has a unique code 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 the key fob is unmodified and has a chip that has been programmed to match it. The car won't start if the key is not programmed to match.
It is vital to have an extra Saab key. This is particularly true for those who live in a rural location that has many car thieves. You can get a new key for your Saab by going to the dealership, without having to pay their expensive prices. In most instances, you can get an original key made on the spot at a fraction of the cost you would pay at dealerships.
Key for Wired
Saab cars are usually supplied with two keys. If you have only one, it is recommended to get an additional key as soon as you can. This is because if you lose it, the car will need an entirely new CIM and the locking cylinders replaced. This could be expensive, especially if you are buying a used car.
The next step is to wire the wires for the column and row to the microcontroller. This is the most challenging part of the project and will require a great deal of soldering. It's not a common way to do it, however, you should consider how you will connect and solder each column and row. There are 22 microcontroller wires and pins to connect to this keyboard. It has 5 rows and 17 columns.
Once the rows and columns are soldered, it's the time to connect them to key switches. To do this, put a diode across each pin on the key switch and solder it. This will protect the pins on the key switch from current and prevent them from being shorted. A diode lets current only flow in one direction. It has a visual indicator, a black band, that shows the direction in which the current will flow.
Sanabria states that a number of the tools that are sold in auto parts stores, like the Autel MaxiIM IM608PRO or IM508 are able to assist shoppers or DIY users to program replacement keys and restore immobilizer data. The tools plug into OBD ports and help the customer through each step making the process simpler than replacing the vehicle's computer.
Jump-starting the battery
The majority of people have a set of jumper cables in their trunk for emergency situations however, jumping a battery for newer vehicles may not be the best idea. These vehicles have many digital and computer systems that communicate with each other. A voltage surge while the battery is connected to another battery could fry these components, rendering your car unable to drive.
Start the working vehicle and allow it to run for around two minutes before connecting the cables to the non-working one. Attach the red clip on the positive terminal of the battery that's good. (It will read "POS" or "+".) Attach the other end to a clean and unpainted metal surface underneath the hood of the affected vehicle. The engine block is a good choice. Do not connect the black cable to the negative terminal of the dead battery, since it could spark a spark that ignites the gasoline in the engine bay.
After the cables have been connected, you need to start the car and allow it to run for around five minutes. Then disconnect the cables in reverse. Remember that the battery on the Saab 9-3 will be charged when you drive, and it can take a while for the battery to come back down again. It is a good idea to purchase a spare key fob as soon as you can, because replacing the only working one requires the installation of a new computer module and special programming to convince it that your lost keys aren't attempting to steal the car.
Replacement Case
Many Saab owners only have one key for their car and if they lose it, the cost will be. The reason is that it's expensive to replace a key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, and programming. In the event of theft or other catastrophe it is best to have a spare key. Even it's "new" it will not function.
The dealer will charge the highest dollars if you only have one working key. We can, however, reset and re-program the computer's EEPROM to prepare it to accept an alternative key without replacing the entire system. That can save you lots of money. It's less expensive than wait until you loose the only key.