Saab Key Programming
Saab cars made since 1994 have an immobilizer feature based on coded keys. A new transponder is required for the inclusion of an additional key, as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool.
The issue is that it can be very expensive. Always keep a spare set of keys on hand.
Transponder key
The transponder key is a key equipped with an electronic chip. It transmits a signal to the car when it is inserted into ignition. The car will check to see whether the signal matches the one on the key. If the signals match, the car will unlock itself and start. This is a great way to prevent auto theft and keep your vehicle secure from thieves.
Transponder keys are a popular feature in automobiles, but you should be aware they aren't as secure as traditional keys made of metal. The metal component of the traditional key is easily cut or copied, while transponders have an electronic chip that safeguards it. The chip is a unique code which is programmed into a car's computer 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 the device has an unmodified chip and programmed to match. In the absence of that, the car will reject the key and refuse to start.
It's crucial to ensure that you have an extra key for your Saab. This is especially true especially if you live in a rural area with numerous car thieves. The good thing is that you can get a replacement key for your Saab without needing to visit a dealership and pay the high prices they ask. In most cases, you can have an original key made on the spot at a fraction of the cost of what you'd pay at a dealer.
Key for Wired
Saab cars usually come with two keys when they are new. If you only have one, it's a good idea to get an extra key fob as soon as is possible as 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 costly especially if buying a used car.
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 it will require lots of soldering. There isn't a standard way to accomplish this, however it is essential to determine the route you'll take and solder the columns and rows. There are 22 microcontroller wires and pins that you can connect for this keyboard. It has five rows and 17 column.
After the rows and column are joined after which it is time to connect the key switches. Solder saab 9-5 key replacement to each key switch pin. This will shield the pins of the key switch from current and keep them from being shorted. A diode can only allow current to flow in one direction, and it also has a the black band as a visual indicator that shows the direction in which current will flow.
Some of the tools offered at auto parts stores- such as the Autel MaxiIM IM608 PRO and IM508 -- could aid shop customers or DIY customers in certain instances replace keys in the program and restore lost immobilizer data, Sanabria says. The tools plug into the OBD port and guide the customer through the process, making it more simple than replacing the computer inside the vehicle.
Jump-starting the battery
The majority of people have a set of jumper cables in their trunk to use in an emergency, but jumping a battery on modern vehicles may not be the best idea. These vehicles have many electronic devices and computers that communicate with each other. A voltage surge while the battery is connected to another could cause damage to these components and render your car undriveable.
Connect the cables to the vehicle that is working. Let it run for two minutes. Attach the red clip on the positive terminal of the battery that is good. (It will read "POS" or "+".) Attach the other end of the black cable to a clean, unpainted metal surface under the disabled car's hood. The engine block is an ideal choice. Do not connect the black cable to the negative terminal on the dead battery because it could ignite an ignition spark that ignites the gasoline in the engine bay.
Once the cables are connected, you can start the vehicle and allow it to run for around five minutes. Then, disconnect the cables in reverse. The battery in your Saab 9-3 is recharged as you drive. It takes a while for it to fall back. It is recommended to purchase a second key fob, as soon as you can. Replacing the one that works requires the installation and programming of a brand new computer chip.
Replacement Case
Saab owners usually have only one car key, and if that is lost, they'll be charged. The reason for this is that it's not inexpensive to replace a key, and it requires 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 best to have an extra key. However, don't purchase a secondhand key, even when it's "new." Claimed-new keys from sellers selling aftermarket keys won't work and are almost guaranteed to fail in the crucial moment.
The dealer will charge you the most expensive dollar if you only have one working key. We can reset and reprogram the EEEPROM of your computer for it to accept a replacement key without having to replace the entire system. This can help you save money. It's also much less expensive than waiting until you lose your only key.