Saab Key Programming
Saab cars produced since 1994 use an immobilizer system that relies on key codes. A new transponder is required for the inclusion of an additional key, and special programming. This is usually done at the dealer using a special Tech2 diagnostic tool.
The issue is that this can be quite costly. Always keep a spare set of keys on hand.
Transponder key
The transponder can be described as a key that has an electronic chip. The chip transmits a signal when the key is put into the ignition. The car will then check the signal to see whether it matches that of the key. If the signals are identical the car will then unlock itself and start. This is a great way to protect your vehicle from theft.
Transponder keys are a common feature in vehicles, but you must be aware that they're not as secure as traditional metal keys. While saab 93 key fob replacement of a traditional key can be cut and copied, a transponder is protected by an electronic chip. The chip contains a unique code that is inserted into a car's computer in order to identify it.
The car will recognize the Saab keyfob and allow it to be turned on. The car can only recognize the key fob if it has a chip that is unmodified and programmed to match. The car won't start in the event that the key is not programmed to match.
It is essential to have an extra Saab key. This is particularly true if you reside in a rural location that has many car thieves. You can get a new key for your Saab by visiting the dealership without paying their expensive cost. You can have an original key made on the spot at a fraction of the price you'd pay at the dealership.
Wired key
Saab cars typically come with two keys when new. If you only have one, it's recommended to purchase an additional key fob as quickly as you can since if you lose it, your car will require an entirely new CIM unit, and the locking cylinders will need to be replaced. This can be expensive especially for cars that are used.
The next step is to wire the wires for the column and row to the microcontroller. This is the most tedious part of the project and will require a lot of soldering. It's not a standard way to do it, but you must consider how you will connect and solder each column and row. For this keyboard, there are 5 rows and 17 columns, which means there will be 22 microcontroller pins and wires to connect.
After the rows and column are soldered together It is now time to connect the key switches. To do this, you need to place a diode over each pin of the key switch and then solder it. This will protect the pins from current, preventing them from being shortened. A diode allows current to flow in one direction, and it comes with a the black band as a visual indicator that indicates the direction in which current will flow.
Some of the tools offered at auto parts stores -like the Autel MaxiIM IM608 PRO and IM508 -- can aid shop customers or DIY customers in certain cases programme replacement keys and recover lost immobilizer data Sanabria says. The tools plug into OBD ports and guide the user through each step and make the process more straightforward than replacing the vehicle's computer.
Jumpstarting the battery
The majority of people have a set of jumper cables in their trunk to use in an emergency, but jumping a battery for newer cars might not be the best choice. These vehicles are equipped with electronic devices and computers that communicate with one another. A voltage spike when a battery is hooked up to another battery could fry these components and leave your vehicle unable to drive.
Start the vehicle you are using and allow it to run for around two minutes before you connect the cables to the non-working one. 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 clean, unpainted metal surface under the hood of your disabled 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 the gasoline that is in the engine compartment.
After the cables have been connected, you can start the car and allow it to run for around five minutes. Then, disconnect them in reverse. The battery in the Saab 9-3 will charge while you drive. It will take a while for it to fall back. It is recommended to purchase a second key fob, when you can. Replacing the only one that works requires the installation and programming of a new computer chip.
Replacement case
Many Saab owners have only one key for their car and if they lose it, they'll be charged. The reason is that it's not cheap to buy a new key, and this 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 recommended to have an extra key. Even if the key is "new", it will not function.
The dealer will charge the highest dollar for only one working key. We can reset and reprogram the computer's EEEPROM for it to accept a new key without replacing the entire system. This could help you save a significant amount of money. It's also a lot cheaper than waiting until you lose your only key.