Saab Key Programming
Saab cars manufactured since 1994 come with an immobilizer system made up of coded keys. Adding an extra key requires the purchase of a new transponder as well as special programming. saab key fob replacement is usually handled by the dealer using a Tech2 diagnostic tool.
It can be costly. You should always keep a spare set of keys on hand.
Transponder key
The transponder key is a piece of hardware equipped with an electronic chip. It transmits a signal to the car when it is put into the ignition. The car will then check the signal to determine whether it is identical to the one that is in the key. If the signals match, the car will unlock itself and start. This is a great way to stop car theft and keep your car safe from thieves.
Transponder keys are a popular feature in cars, but it is important to know that they are not as secure as traditional metal keys. The metal component of the traditional key is easily cut and copied, whereas transponders have an electronic chip that protects it. The chip has 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. But, it's only able to do so if the key fob has an unmodified chip that has been programmed to match it. The car won't start if the key is not programmed to match.
It is essential to ensure that you have a spare key for your Saab. This is especially true when you live in a rural area where there are a lot of car thieves. You can purchase a new key for your Saab by visiting the dealership without paying pricey costs. You can have a replacement key created on the spot for less than half the price you'd pay at a dealership.
Wired key
Saab cars are usually supplied with two keys. If you have only one, it is recommended to get an extra key as soon as you can. This is because, if it's lost and the car is damaged, it will require a new CIM and the locking cylinders replaced. This can be costly particularly for used cars.
The next step is to connect the row and column wires to the microcontroller. This is the toughest component of the project and will require a lot of soldering. It's not a common way to go about it, but you should consider how you will connect and solder each column and row. For this keyboard, there are 5 rows and 17 columns, so there will be 22 microcontroller pins and wires to connect.
After the rows and column are joined It is now time to connect the key switches. Solder a diode on each key switch pin. This will shield the pins from current, and prevent them from being shortened. The diode allows current to only flow in one direction. It comes with a visual indicator of a black line that shows which way current will flow.
Sanabria says that a few of the tools available in auto parts stores, like the Autel MaxiIM IM608PRO and IM508 are able to assist customers shopping or DIY customers 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 car's computer.
Jump-starting the battery
A lot of people keep an assortment of tools in their trunks to jump-start a vehicle in an emergency, but this might not be a good idea for newer cars. These vehicles are equipped with electronic devices and computers that communicate with each other. A surge in voltage when the battery is connected to another one could damage these components and render your car unable to drive.
Connect the cables to the vehicle that is operating. Allow it to run for two minutes. Attach the red clip to the positive terminal of the good battery. (It will read "POS" or "+".) Attach the other end to a clean unpainted metal surface beneath the hood of the affected car. The engine block is a great option. The black cable should not be connected to the negative terminal of the dead battery. This could create a spark, which would ignite gasoline in the engine compartment.
Once the cables are connected, start the vehicle and let it run about five minutes. Then, disconnect the cables in reverse. The battery in your Saab 9-3 is recharged as you drive. It may take a while it to return to its original state. You should invest in an additional key fob as soon as possible. The replacement of the one that works requires the installation and programming of a brand new computer chip.
Replacement Case
Many Saab owners only have one key for their vehicle and if they lose that the cost will be. The reason for this is that it's not cheap to buy a new key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. In the event of theft or any other catastrophe it is advisable to have a spare key. Don't buy a secondhand key even the case that it's "new." Claimed-new keys from sellers selling aftermarket keys won't work and are almost guaranteed to fail in the most critical moment.
Most locksmiths can't help you in the event that you only have one working key, and the dealer will charge high prices to replace the computer in your car to make a new replacement. We can reset and reprogram the computer's EEEPROM for it to accept a replacement key without having to replace the entire system. This could save you a significant amount of money. It's cheaper to do this than waiting until you lose the only key.