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saab 9-3 key replacement Key Programming

saab key fob repair cars made since 1994 feature an immobilizer system that relies on coded keys. A new transponder is required for the addition of an additional key, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool.

The issue is that this can be quite costly. You should always keep a spare set of keys available.

Transponder key

The transponder is a piece of key that is equipped with an electronic chip. The chip transmits a signal when the key is inserted into the ignition. The car then analyzes the signal to determine whether it is identical to the one in the key. If the signals are in sync the car will then unlock and begin. This is a great way to prevent auto theft and keep your vehicle safe from thieves.

Transponder keys may be an increasingly popular feature for cars, but they are not as safe as traditional keys made of metal. While the metal component of a traditional key can be cut and copied however, a transponder is secured by an electronic chip. The chip has a unique code embedded into the car's computer to identify it.

The car will recognize the Saab Ignition Key keyfob and allow it to be turned on. The car can only recognize the key fob if the device has a chip that is unmodified and has been programmed to match. The car won't start in the event that the key is not programmed to match.

It is essential to ensure that you have an extra key for your saab 93 key replacement. This is particularly true for those who live in a rural area that is home to numerous car thieves. You can purchase a new key for your Saab by going to the dealership and not paying their expensive prices. You can have a replacement key created on the spot for less than half the price you'd spend at a dealership.

Wired key

Saab cars are usually delivered with two keys. If you only have one, it's recommended to purchase an extra key fob as soon as you can, because if you lose it, your car will require an entirely new CIM unit and the locking cylinders will have to be replaced. This could be expensive especially if buying a second-hand car.

The next step is to wire the row and column wires to the microcontroller. This is the most difficult part of the project and it will require a lot of soldering. There's no standard way to accomplish this, however it is crucial to plan the way you'll route and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns, which means 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. Solder a diode on each key switch pin. This will protect the pins that are used for key switches from current and prevent them from being shorted. The diode will only allow the flow of current to be in one direction, and it also has a an indicator in black that shows the direction in which current will flow.

Some of the tools available at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 -- could help shop customers or even DIY customers in some cases programme replacement keys and recover lost immobilizer information, Sanabria says. The tools connect to OBD ports and guide the user through each step which makes the process much easier than replacing the vehicle's computer.

Jump starting the battery

A lot of people keep a set in their trunk to jump-start their car in case of emergency, however it might not be a good idea for cars with more modern technology. These cars have a variety of computers and digital devices that communicate with one another. A voltage spike when the battery is connected to another can fry these components and render your car unable to drive.

Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal on the good battery (it will have "POS" or "+" on it). Attach the other end to a clean unpainted metal surface under the hood of your disabled car. 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, which could ignite gasoline in the engine compartment.

Once the cables are connected, you need to begin the car and let it run for about five minutes. Then, disconnect them in reverse. Remember that the battery on the Saab 9-3 gets recharged when you drive, and it could take a while for the battery to go back to its original level. You should consider purchasing an additional key fob as soon as possible. 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 that is lost, they will be charged. The reason is that it's expensive to purchase a new key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. In the event of theft, or other catastrophe it is advisable to have a spare key. Don't purchase a used key even the case that it's "new." Keys that are claimed as new purchased from third-party sellers won't work and are likely to fail in the crucial moment.

The dealer will charge you the highest dollar if you have only one working key. We can, however, reset and reprogram the computer's EEPROM in order to prepare it to accept the new key, without replacing the whole system. That can save you lots of money. It's also a lot cheaper than waiting until you lose your only key.