Saab Key Programming
saab fob key replacement cars manufactured since 1994 utilize an immobilizer that relies on keys that are coded. A new transponder 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.
The problem is that it can be very expensive. It is always advisable to keep an extra set of keys in your possession.
Transponder key
The transponder keys are keys with an electronic chip that transmits a signal to the car when it is inserted into the ignition. The car then checks to see whether the signal matches with the one on the key. If the signals match, the car will unlock itself and start. This is a great way to deter car theft and keep your car secure from thieves.
Transponder keys can be a popular addition to automobiles, but they are not as safe as traditional metal keys. While the metal parts of a traditional key could be cut and copied, a transponder is protected by an electronic chip. The chip contains a unique code that is programmed into a car's computer order to identify it.
The car will recognize the Saab ignition key keyfob and permit it to turn on. However, it is only able to do this if the fob is equipped with a chip that is not modified that has been programmed to match. The car will not start when the key isn't programmed to match.
It is essential to have an extra Saab key. This is especially true for those who live in a rural location where there are a lot of car thieves. You can get a brand new key for your Saab by going to the dealership and not paying their expensive costs. In the majority of instances, you can get a new key made on-the-spot for less than half the cost of what you would pay at a dealer.
Key for Wired
Saab cars are usually supplied with two keys. If you only have one, it is best to acquire an additional key fob as soon as possible since if you lose it, the car will require the replacement saab 9-3 key of a CIM unit, and the locking cylinders will have to be replaced. This can be costly particularly if you are purchasing a used car.
The next step is to connect the wires for the column and row to the microcontroller. This is the toughest aspect of the project and will require lots of soldering. There's no standard way to do this, but it's important to plan out how you will route and solder the columns and rows. For this keyboard, there are 5 rows and 17 columns, which means there will be 22 microcontroller wires and pins that you need to connect.
Once the rows and columns are soldered, it's time to connect them to key switches. To do this, put a diode on each key switch pin and solder it. This will shield the key switch pins from current and also prevent them from being shorted. A diode allows the flow of current to be in one direction, and has a the black band as a visual indicator that shows the direction in which current will flow.
Sanabria states that some of the tools that are sold in auto parts stores, such as the Autel MaxiIM IM608PRO and the IM508 are able to assist customers shopping or DIY customers to program replacement keys and restore immobilizer data. The tools plug into the OBD port and automatically guide the customer through the process, making it more simple than replacing the computer inside the vehicle.
Jump-starting the battery
A lot of people keep the set in their trunk to start a car in an emergency, but it may not be the best idea for newer cars. These cars are equipped with a variety of digital and computers that communicate with each other. A voltage surge when batteries are connected to another could cause damage to the components making your car unusable.
Start the vehicle you are using and allow it to run for around two minutes before connecting the cables to the one that is disabled. 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 an unpainted, clean metal surface beneath the damaged car's hood. The engine block is a good option. 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, you need to begin the car and let it run for about five minutes. Then disconnect the cables in reverse. The battery in your Saab 9-3 will recharge while you drive. It will take some time for it to recharge again. It's 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 the system that your lost keys are not trying to steal the car.
Replacement Case
Many saab 9-3 key fob replacement owners have only one key for their car and if they lose that key, it will cost them. The reason is that it's not cheap to purchase a new key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, as well as programming. In the event of theft or other catastrophe it is best to have a spare key. Don't purchase a used key even the case that it's "new." Keys that are claimed to be new purchased from third-party sellers won't perform and are almost certain to fail in the most critical moment.
Most locksmiths cannot help you if you have only one working key, and the dealer will charge you high prices to replace the computer in your car to make a replacement. However, we can reset and re-program your computer's EEPROM to prepare it to accept the new key, without replacing the whole system. That can save you lots of money. It's less expensive instead of waiting until you lose your only key.