Saab Key Programming
Saab cars made since 1994 come with an immobilizer system that is based on codes for 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.
It can be costly. You should always keep a spare set of keys on hand.
Transponder key
The transponder can be described as a key that is equipped with an electronic chip. This chip sends out a signal when the key is inserted in the ignition. The car then checks the signal to see whether it matches that of the key. If the signals match, the car will unlock and start. This is a great way to guard your car against theft.
Transponder keys are a popular addition to cars, but they are not as safe as traditional keys made of metal. The metal part of the traditional keys can be easily cut and copied, however the transponder is protected by an electronic chip that protects it. The chip is a unique code that's programmed into the 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 will only recognize the key fob if it has a chip that is unmodified and programmed to match. The car won't start when the key isn't programmed to match.
It is essential to ensure that you have an extra key for your Saab. This is particularly important especially if you reside in a rural area, where there are numerous car thieves. You can get a brand new key for your Saab by going to the dealership without paying expensive prices. In most instances, you can get a new key created on-the-spot at a fraction of the price of what you'd pay at an auto dealer.
Key for Wired
Saab cars are usually provided with two keys. If you have only one, you need to purchase an additional key as soon as you can. This is because if it's lost, the car will need a new CIM and the locking cylinders replaced. This can be expensive especially for cars that are used.
The next step is to wire the row and column wires to the microcontroller. This is the most laborious part of the project and will require lots of soldering. There isn't a standard method to go about it, but you should plan how to route and solder each column and row. There are 22 microcontroller wires and pins to connect to this keyboard. It has 5 rows and 17 column.
Once the rows and columns are soldered, it's the time to connect them to key switches. Solder a diode on each key switch pin. This will protect the key switch pins from current and keep them from being shorted. The diode will only allow the current to flow in a single direction, and it also has a a black band visual indicator that shows the direction in which current will flow.
Sanabria says that some of the tools sold in auto parts stores, like the Autel MaxiIM IM608PRO and IM508 are able to assist customers shopping or DIY users to program replacement keys and restore immobilizer information. The tools plug into OBD ports and guide the customer through each step and make the process more straightforward than replacing the car's computer.
Jump starting the battery
A majority of people keep the set in their trunks to jump start a vehicle in an emergency, however it might not be a good option for vehicles with newer technology. These cars have a variety of digital and computer systems that communicate with each other. A surge in voltage while a battery is hooked up to another could cause damage to these components and render your vehicle unable to drive.
Start the vehicle that is working and allow it to run for around two minutes before connecting the cables to the battery that is not working. Attach the red clip to the positive terminal of the good battery (it will have "POS" or "+" on it). Attach the other end to a clean and unpainted metal surface beneath the hood of the damaged vehicle. The engine block is a great option. The black cable is not to be connected to the negative terminal of the dead battery. This could create a spark, which would ignite the gasoline in the engine compartment.
Once the cables are connected, start the vehicle you are not using and let it run for about five minutes before you disconnect the cables in reverse order. The battery in your Saab 9-3 will recharge while you drive. It takes a while for it to recharge again. It's a good idea to invest in 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 the lost keys are not trying to steal the car.
Replacement Case
Saab owners often only have one car key, and if it is lost, they will be charged. The reason for this is that it's expensive to add a new key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, and programming. In the event of theft, or other catastrophe it is recommended to have an extra key. But don't buy a used key, even it's "new." Keys that are claimed-new from sellers selling aftermarket keys won't work and are almost guaranteed to fail in the most critical moment.
The majority of locksmiths won't be able to help if you have only one working key and the dealer will charge you top dollar to replace the computer in your car to make a new replacement. saab replacement keys can reset and reprogram the computer's EEEPROM to be able to accept a replacement key without having to replace the entire system. This could save you a significant amount of money. It's also much less expensive than waiting until you lose your one key.