Saab Key Programming
Saab cars that were built prior to 1994 have an immobilizer feature that is based on codes for keys. The addition of a key requires a new transponder and special programming. This is usually done at the dealer with a specialized Tech2 diagnostic tool.
The issue is that this can be very expensive. It is always advisable to keep a spare set of keys at hand.
Transponder key
The transponder key is a piece of hardware equipped with an electronic chip. It sends a signal back to the car when it is inserted into the ignition. The car will check to see if the signal matches the one on the key. If the signals match it will open and start. This is a great method to prevent car theft and keep your vehicle safe from thieves.
Transponder keys can be an extremely popular accessory for cars, but they're not as secure as traditional metal keys. While the metal parts of a traditional key may be cut and copied but a transponder key is protected by an electronic chip. The chip is a unique code that's programmed 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 when it has a chip that is unmodified and has been programmed to match. In the absence of that, the car will refuse to accept the key and will not start.
It is crucial to have an extra Saab key. This is especially true when you live in a rural area with numerous car thieves. You can purchase a new key for your Saab by going to the dealership, without having to pay their high costs. In most instances, you can get a brand new key made right on the spot at a fraction of the cost you would pay at dealerships.
Key for Wired
Saab cars usually come with two keys when they're new. If you have only one, it is recommended to get an additional key as fast as you can. This is because, if it's lost the car will require a new CIM and the locking cylinders replaced. This can be costly especially if you're purchasing a used car.
The next step is to wire the row and column wires to the microcontroller. This is the most tedious part of the project, and will require a lot of soldering. There is no standardized way to accomplish this, however it is crucial to plan the route you'll take and solder the rows and columns. There are 22 microcontroller wires as well as pins to connect to this keyboard. It has five rows and 17 columns.
After the rows and column are soldered together, it is time to connect the key switches. Solder a diode on each key switch pin. This will protect the pins of the key switch from current and keep them from being shorted. A diode only allows the current to flow in a single direction, and it also has a an indicator in black that indicates which way the current will flow.
Some of the tools you can find at auto parts stores -like the Autel MaxiIM IM608 PRO and IM508 -- could aid shop customers or DIY customers in certain cases replace keys in the program and restore lost immobilizer data Sanabria says. The tools plug into OBD ports and help the customer through each step, making the process easier than replacing the car's computer.
Jump starting the battery
A majority of people keep the set in their trunk to start a car in an emergency, but it might not be a good idea for cars with more modern technology. These vehicles are equipped with a number of electronic devices and computers that communicate with each other. A surge of voltage when batteries are connected to another battery could damage the components, rendering your car undriveable.
Start the working vehicle and let it run for about two minutes before you connect the cables to the one that is disabled. Attach the red clip on the positive terminal of the battery that's good. (It will read "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface beneath the damaged vehicle's hood. An engine block is an excellent choice. The black cable is not to be connected to the negative terminal of the dead battery. This could trigger sparks that could ignite the gasoline that is in the engine compartment.
Once the cables are connected, turn on the disabled vehicle and let it run for approximately five minutes before you disconnect them in reverse order. saab key fob replacement in the Saab 9-3 will charge while you drive. It will take a while for it to return to its original state. It's a good idea to buy a spare key fob as soon as you can, because replacing the one that works 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
Saab owners usually only have one car key, and if it is lost, they will be charged. It's costly to add the key and also requires replacing the CIM or TWICE for older models. In the event of theft, or other catastrophe, it is best to have a spare key. 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 reprogram the computer's EEPROM to accept a new key without replacing the whole system. This could save you a lot of money. It's more affordable than wait until you lose your only key.