Saab Key Programming

Saab cars built since about 1994 feature an immobilizer mechanism based on coded keys. In order to add a second key, it requires a new transponder and special programming. This is usually done by the dealer using a Tech2 diagnostic tool.

This can be expensive. It is recommended to always have a spare set of keys on hand.

Transponder key

The transponder is a key that is equipped with an electronic chip. This chip sends out a signal when the key is inserted into the ignition. The car will check to see whether the signal matches with the one on the key. If the signals match it will open and start. This is a great way to protect your car from theft.

Transponder keys are a common feature in automobiles, but you should be aware that they aren't as secure as classic metal keys. The metal part of the traditional key can easily be cut and copied, however the transponder is protected by an electronic chip that safeguards it. The chip has a unique code that is inserted into a car's computer order to identify it.

The car will recognize the Saab keyfob and allow it to turn on. But, it's only able to do this if the key fob is equipped with a chip that is not modified that has been programmed to match it. The car won't start in the event that the key has not been programmed to match.

It is vital to have a spare Saab key. This is particularly important for those who live in a rural area, where there are many car thieves. You can get a new key for Broken your saab key replacement cost by going to the dealership and not paying their high cost. In most instances, you can get a new key made on-the-spot at a fraction of the cost of what you'd pay at an auto dealer.

Wired key

Saab cars usually come with two keys upon purchase. If you own only one, you should get an additional key as soon 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 expensive, especially for used cars.

The next step is to wire the wires of the column and row to the microcontroller. This is the most difficult part of the project and will require a great amount of soldering. It's not a common way to go about it, but you need to consider how you will route and solder each column and row. For this keyboard, there are five rows and 17 columns, so there will be 22 microcontroller wires and pins to connect.

After the columns and rows are soldered, it's the time to connect them to key switches. To do this, you need to place an inverter over each pin of the key switch and solder it. This will shield the key switch pins from current and keep them from being shorted. The diode allows current to only flow in one direction. It features a visual indicator that is black, that indicates which direction current will flow.

Some of the tools you can find at auto parts storeslike the Autel MaxiIM IM608 PRO and IM508 -- can help customers in the shop, or even DIY customers in certain cases replace keys in the program and restore the lost immobilizer's data, Sanabria says. The tools connect to 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 for emergencies, but jumping a battery on modern vehicles might not be the best choice. These vehicles are equipped with a number of computers and digital devices that communicate with each other. A voltage spike when a battery is hooked up to another one could damage these components and render your car undriveable.

Start the vehicle that is working and allow it to run for approximately two minutes before you connect the cables to the non-working one. Attach the red clip to the positive terminal of the good battery. (It will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface underneath the car's hood. The engine block is an excellent choice. The black cable is not to be connected to the negative terminal of the dead battery. This could result in sparks that could ignite the gasoline in the engine compartment.

Once the cables are connected, you need to start the vehicle and let it run for approximately five minutes. Then, disconnect them in reverse. The battery in your saab fob key replacement 9-3 is recharged while you drive. It will take some time for it to fall back. You should invest in an additional key fob when you can. Replacing the original one that works requires the installation and programming of a brand new computer chip.

Replacement Case

Many Saab owners only have one key for their car and if they lose that key, it will cost them. It's costly to add the key and also requires replacing the CIM or TWICE in the case of older models. In the event of theft, or any other disaster it is best to have a spare key. Even it's "new" it will not function.

The dealer will charge the highest dollar if you have 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 could save you a significant amount of money. It's also cheaper than waiting until you lose your only key.