Saab Key Programming

Saab cars built since 1994 utilize an immobilizer system that is based on key codes. The addition of a key requires the purchase of a new transponder as well as special programming. This is usually done at the dealer with a specialized Tech2 diagnostic tool.

This can be expensive. This is why you should always have a spare key at hand.

Transponder key

The transponder is a piece of key that has an electronic chip. The chip transmits a signal when the key is placed in the ignition. The car then checks to see whether the signal matches the one on the key. If the signals are in sync, the car will unlock and start. This is a great method to deter auto theft and keep your car safe from thieves.

Transponder keys are a popular feature in automobiles, but you should be aware they're not as secure as classic metal keys. The metal component of a traditional key is easily cut or copied, while transponders are protected by an electronic chip that protects it. This chip contains an individual code that is programmed into the car's computer to identify it.

The car will recognize the saab replacement key programming keyfob and allow it to turn on. The car can only recognize the key fob if it is equipped with an unmodified chip and has been programmed to match. In the absence of that, the car will reject the key and not start.

It is essential to have a spare Saab key. This is particularly important if you reside in a rural area that is home to numerous car thieves. The good part is that you can find a new key for your Saab without having to go to a dealership and pay the expensive prices that they demand. In most instances, you can get a new key created on-the-spot at a fraction of the cost of what you'd pay at a dealer.

Wired key

Saab cars are usually supplied with two keys. If you have only one, you should purchase an extra key as soon as you can. This is because, if it's lost and the car is damaged, it will require an entirely new CIM and the locking cylinders replaced. This can be costly particularly for used cars.

The next step is to wire the wires for 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, however, you should think about how to program saab 9-3 key fob to route and solder each column and row. There are 22 microcontroller wires and pins that you can connect to this keyboard. It has 5 rows and 17 column.

After the columns and rows are soldered together then it's time to connect the key switches. To do this, you need to place a diode across each pin of the key switch and solder it. This will protect the pins from current, thus preventing them from being shortened. The diode will only allow the current to flow in a single direction, and it comes with a an indicator in black that indicates the direction current will flow.

Sanabria says that some of the tools offered in auto parts stores, like the Autel MaxiIM IM608PRO and the IM508 can assist customers shopping or DIY users to program replacement keys and restore data from the immobilizer. The tools connect to OBD ports and guide the customer through each step making the process simpler than replacing the vehicle's computer.

Jump-starting the battery

A lot of people keep a set of jumper cables in their trunks to use in an emergency however, jumping a battery for newer cars might not be the most efficient option. These vehicles are equipped with a number of digital and electronic devices that communicate with one another. A surge in voltage when a battery is connected to another battery could damage the components and render your vehicle unusable.

Connect the cables to the vehicle that is working. Allow it to run for two minutes. Attach the red clip on the positive terminal of the battery that is good. (It will say "POS" or "+".) Attach the other end to a clear, unpainted metal surface under the hood of your disabled car. The engine block is a great alternative. Do not connect the black cable to the negative terminal on the dead battery, as this could cause an ignition source that ignites gasoline in the engine bay.

Once the cables are connected, turn on the vehicle you are not using and let it run for about five minutes before disconnecting the cables in reverse order. The battery in the saab key code 9-3 will charge while you drive. It will take a while for it to recharge again. It's a good idea purchase a spare fob as soon as you can, since replacing the only functioning one requires the installation of a brand new computer module and special programming to convince it that your missing keys aren't in the process of trying to steal the car.

Replacement Case

Many Saab owners only have one key for their car and if they lose it, it's going to cost them. It's costly to add an additional key and it requires replacing the CIM or TWICE for older models. In the event of theft or other catastrophe it is best to have a spare key. But don't buy a used key, even if it's "new." Keys that are claimed to be new purchased from third-party sellers won't perform and are almost certain to fail in the crucial moment.

The dealer will charge the highest dollars if you only have one working key. We can, however, reset and re-program the computer's EEPROM to accept a new key without replacing the whole system. That can save you lots of money. It's cheaper to do this than wait until you loose the only key.