Saab Key Programming

saab fob key replacement cars that were built prior to 1994 have an immobilizer feature made up of coded keys. A new transponder is required in order to enable the addition of an extra key, as well as special programming. This is usually done by the dealer using a special Tech2 diagnostic tool.

This can be expensive. You should always keep a spare set of keys on hand.

Transponder key

The transponder is a type of key that has an electronic chip. The chip transmits a signal when the key is put in the ignition. The car then checks the signal to determine whether it matches the one on the key. If the signals are in sync it will open and start. This is an excellent way to protect your vehicle from theft.

Transponder keys are a common feature in automobiles, but you should be aware they're not as secure as traditional keys made of metal. The metal part of the traditional key can easily be copied and cut, but transponders are protected by an electronic chip that guards it. The chip has a unique code which is programmed into a car's computer 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 it is equipped with an unmodified chip and programmed to match. The car will not start in the event that the key is not programmed to match.

It's important to make sure that you have a spare key for your saab 9-5 key replacement. This is particularly important if you live in a rural region where there are many car thieves. You can get a brand new key for your Saab by visiting the dealership, without having to pay their pricey cost. You can have a replacement key made on the spot for less than half of the cost you would spend at the dealership.

Wired key

Saab cars usually come with two keys upon purchase. If you only own one, you need to purchase an additional key as soon as you can. This is because if you lose it and the car needs a new CIM and the locking cylinders replaced. This can be costly, especially for used cars.

The next step is to wire the wires for the column and row to the microcontroller. This is the most challenging part of the project and will require a large amount of soldering. There's no standard way to go about it, but you need to plan how to get a saab replacement key to route and solder each column and row. For this keyboard, there are 5 rows and 17 columns. This means there will be 22 microcontroller wires and pins that you need to connect.

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 shield the pins from current, preventing them from being shorted. The diode will only allow the current to flow in a single direction, and has a the black band as a visual indicator that indicates the direction in which current will flow.

Sanabria states that a number of the tools that are sold in auto parts stores, such as the Autel MaxiIM IMM608PRO and IM508 will assist customers who are shopping or DIY users to program replacement keys and restore data from the immobilizer. The tools plug into the OBD port and guide the user through the procedure, making it simpler than replacing the computer in the vehicle.

Jump starting the battery

Most people keep a few sets of jumper cables in their trunk in case of emergency, but jumping a battery in newer vehicles might not be the best choice. These cars have a variety of digital and computer systems that communicate with each other. A voltage spike when a battery is hooked up to another can fry these components, rendering your car undriveable.

Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal of the good battery. (It will read "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 ideal choice. The black cable should not be connected to the negative terminal of the dead battery. This could cause sparks, which could ignite the gasoline in the engine compartment.

Once the cables are connected, turn on the vehicle you are not using and let it run for about five minutes before you disconnect the cables in reverse order. Be aware that the battery of your Saab 9-3 is recharged while you drive, so it may take some time for the battery to go back to normal. It's a good idea to invest in a spare key fob as soon as you can, since replacing the one that works requires the installation of a new computer module and a special program to convince it that the lost keys aren't attempting to steal the car.

Replacement case

Saab owners often only have one car key, and if that is lost, they will be charged. It's expensive to purchase keys and will require replacing the CIM or TWICE in the case of older models. In the event of theft or other catastrophe it is best to have an extra key. Even if the key is "new" it won't work.

The dealer will charge you the most expensive dollar if you have only one working key. We can reset and reprogram the computer's EEEPROM for it to accept a new key without the need to replace the entire system. That can save you a lot of money. It's cheaper to do this instead of waiting until you loose the only key.