The Advanced Guide To Saab Ignition Key Replacement

saab car key Key Programming

saab milton keynes cars built since about 1994 feature an immobilizer mechanism built on coded keys. A new transponder is required in order to enable the inclusion of an additional key, as well as special programming. This is usually handled by the dealer using the Tech2 diagnostic tool.

The issue is that this can be quite costly. You should always keep an extra set of keys in your possession.

Transponder key

The transponder key is a key with an electronic chip that transmits a signal to the car when it is placed in the ignition. The car then checks to see if the signal matches the one on the key. If the signals are the same it will open itself and start. This is a great way to guard your car against theft.

Transponder keys are a common feature in automobiles, but you should be aware they are not as secure as classic keys made of metal. The metal portion of a traditional key is easily copied and cut, but transponders are protected by an electronic chip that guards it. The chip has a unique code that is programmed into a car's computers in order to identify it.

When a Saab key fob is used the car recognizes it and allows it to turn on. The car can only recognize the key fob if the device has an unmodified chip and programmed to match. The car will not start in the event that the key is not programmed to match.

It is essential to have an extra Saab key. This is especially true when you live in a rural location that has numerous car thieves. The good news is that it's possible to find a replacement key to your saab 9-3 key without having to go to an auto dealer and pay the hefty prices that they ask. In the majority of instances, you can get a new key made on-the-spot at a fraction of the price of what you would pay at an auto dealer.

Key for Wired

Saab cars typically come with two keys when they are new. If you have only one, it is recommended to get an additional key as soon as you can. This is because if the key is lost the car will require an entirely new CIM and the locking cylinders replaced. This can be costly, especially if you are buying a second-hand car.

The next step is to connect the wires of columns and row to your microcontroller. This is the most tedious part of the project, and will require a lot of soldering. It's not a common way to go about it, but you should 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 that you need to connect.

After the columns and rows are soldered, it's the time to connect them to key switches. To do this you must place a diode on each key switch pin and solder it. This will shield the pins on the key switch 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 an indicator in black that indicates the direction current will flow.

Some of the tools offered at auto parts stores -- such as the Autel MaxiIM IM608 PRO and IM508 -- can assist customers at the shop or DIY users in some cases replace keys in the program and restore lost immobilizer information, Sanabria says. The tools connect to the OBD port and automatically guide the user through the process, making it easier than replacing the computer in the vehicle.

Jump-starting the battery

Most people keep a set of jumper cables in their trunks for emergency situations, but jumping a battery in newer automobiles might not be the best option. These cars have a variety of electronic devices and computers that communicate with one another. A surge in voltage while the battery is connected to another one could damage these components, rendering your vehicle unable to drive.

Start the working vehicle and let it run for about two minutes before you connect the cables to the one that is disabled. Attach the red clip to the positive terminal of the good battery (it will have "POS" or "+" on it). Attach the other end of the black cable to an unpainted, clean metal surface underneath the vehicle's hood. An engine block is a good choice. Do not connect the black cable to the negative terminal of the dead battery, since it could ignite an ignition spark that ignites the gasoline in the engine bay.

Once the cables are connected, you should begin the car and let it run for approximately five minutes. Then disconnect them in reverse. The battery in your saab key battery replacement 9-3 will recharge while you drive. It will take a while for it to drop back down. It's a good idea buy a spare key fob as soon as you can, since replacing the sole working one requires the installation of a new computer module and a special program to convince it that your lost keys aren't trying to steal the car.

Replacement Case

Many Saab owners only have one key for their vehicle and if they lose that key, it will cost them. It's expensive to add the key and also requires replacing the CIM or TWICE for older models. It's best to have a second key in the event of theft or other disaster and the best option is to buy an extra key as soon as you are able to. However, don't purchase a secondhand key even it's "new." Keys that are claimed-new from sellers selling aftermarket keys won't perform and are almost certain to fail at the crucial moment.

The dealer will charge the highest dollar if you have only one working key. However, we can reset and re-program your computer's EEPROM in order to prepare it to accept a new key without replacing the whole system. That can save you a significant amount of money. It's much cheaper than wait until you loose the only key.