Saab Key Programming
Saab cars made since 1994 feature an immobilizer mechanism built on coded keys. A new transponder is required for addition of an additional key, and special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.
This can be expensive. Always keep a spare set of keys at hand.
Transponder key
The transponder key comes with an electronic chip that sends a signal back to the car when it is inserted into the ignition. The car then checks to see whether the signal is the same as the one on the key. If the signals are the same the car will be able to unlock itself and begin. This is a great way to deter car theft and keep your vehicle safe from thieves.
Transponder keys are a favored feature in automobiles, however you should be aware that they're not as secure as classic metal keys. The metal part of the traditional key can easily be cut and copied, whereas transponders are protected by an electronic chip that protects it. This chip contains a unique code that is embedded into the car's computer 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 when it has a chip that is unmodified and programmed to match. The car will not start in the event that the key has not been programmed to match.
It is essential to have an extra Saab key. This is especially important especially if you reside in a rural location where there are numerous car thieves. You can get a brand new key for your Saab by going to the dealership without paying pricey prices. In most cases, you can have a new key made on-the-spot at a fraction of the price of what you'd pay at a dealer.
Wired key
Saab cars usually come with two keys when they're new. If you have only one, you should purchase an additional key as quickly 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 particularly for used cars.
The next step is to connect the wires of columns and row to your microcontroller. This is the most tedious aspect of the project and it will require lots of soldering. There isn't a standard way to accomplish this, however it is crucial to plan the routes you'll use to solder the rows and columns. For this keyboard, there are 5 rows and 17 columns. This means there will be 22 microcontroller wires and pins that you need to connect.
After the columns and rows are soldered, it's time to connect them to the key switches. To do this you must place an inverter over each pin of the key switch and solder it. This will protect the pins from current, preventing them from being shortened. A diode can only allow the current to flow in a single direction, and it comes with a an indicator in black that shows the direction in which current will flow.
Some of the tools offered at auto parts storeslike the Autel MaxiIM IM608 PRO and IM508 -- can aid shop customers or DIY customers in some cases create replacement keys and restore lost immobilizer data, Sanabria says. The tools connect to the OBD port and guide the user through the process, making it easier than replacing the computer in the vehicle.
Jump-starting the battery
A lot of people keep a set of jumper cables in their trunks for emergency situations however, jumping a battery for newer vehicles may not be the best idea. These vehicles are equipped with a number of electronic devices and computers that communicate with one another. A surge in voltage when the battery is connected to another one could damage the components and render your car undriveable.
Connect the cables to the vehicle working. Allow it to run for two minutes. Attach the red clip on the positive terminal of the battery that's 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 an excellent option. Do not connect the black cable to the negative terminal on the dead battery because this could cause a spark that ignites the gasoline in the engine bay.
Once the cables are connected, you can start the vehicle that is disabled and allow it to run for around five minutes before you disconnect the cables in reverse order. The battery in your Saab 9-3 is recharged while you drive. It may take a while it to return to its original state. You should purchase another key fob as soon as you can. Replacing the one that works requires the installation and programming of a new computer chip.
Replacement case
Saab owners usually only have one car key, and if it is lost, they'll be charged. It's expensive to add the key and also requires replacing the CIM or TWICE for older models. It's recommended to have a second key in the event of theft or any other catastrophe and the most effective way is to purchase a second key as soon as you are able to. However, don't purchase a secondhand key, even it's "new." Claimed-new keys purchased from third-party sellers won't work and are almost guaranteed to fail at the critical moment.
The dealer will charge you the most expensive dollar for only one working key. We can, however, reset and reprogram the computer's EEPROM to accept an alternative key without replacing the whole system. This can save you a lot of money. saab 93 key replacement 's also cheaper than waiting until you lose the only key.