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saab 9-3 key fob replacement Key Programming

saab key fob cars manufactured since 1994 feature an immobilizer that relies on coded keys. In order to add a second key, it requires an entirely new transponder and programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool.

It can be costly. This is why it is important to always have a spare key available.

Transponder key

The transponder is a piece of key that has an electronic chip. This chip sends a signal when the key is placed in the ignition. The car then checks to see whether the signal is the same as the one on the key. If the signals are in sync it will unlock and begin. This is an excellent way to protect your vehicle from theft.

Transponder keys could be an increasingly popular feature for automobiles, but they are not as secure as traditional keys made of metal. While the metal portion of a traditional key may be cut and copied the transponder is protected by an electronic chip. This chip has a unique code that is programmed into the car's computers 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 when it has an unmodified chip and has been programmed to match. The car won't 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. This is especially important when you live in a rural location that has numerous car thieves. You can get a brand new key for your Saab by going to the dealership without paying their pricey costs. You can get a replacement key created on the spot for less than half the price you'd pay at an auto dealer.

Key for Wired

Saab cars usually come with two keys when they're new. If you have only one, you should get an additional key as quickly as you can. This is because if the key is lost saab keys and the car is damaged, it will require an entirely new CIM and the locking cylinders replaced. This can be costly, especially for used cars.

The next step is to connect the wires of the column and row to the microcontroller. This is the most difficult part of the project and will require a large amount of soldering. There isn't a standard way to accomplish this, however it is crucial to plan how you will route and solder the rows and columns. For this keyboard, there are five rows and 17 columns. This means there will be 22 microcontroller wires and pins that you need to connect.

After the rows and column are soldered together then it's time to connect the key switches. Solder a diode to each key switch pin. This will protect the pins on the key switch from current and keep them from being shorted. A diode can only allow current to flow in one direction, and it also has a the black band as a visual indicator that indicates the direction current will flow.

Sanabria states that some of the tools offered in auto parts stores, including the Autel MaxiIM IM608PRO and IM508 are able to assist shoppers or DIY users to program replacement keys and restore immobilizer information. The tools connect to the OBD port and guide the customer through the procedure, making it simpler than replacing the computer in the vehicle.

Jump starting the battery

Most people keep a set of jumper cables in their trunk for emergencies, but jumping a battery for newer automobiles might not be the best choice. These vehicles are equipped with many computers and digital devices which communicate with one another. A surge in voltage when a battery is connected to another one could cause damage to the parts, rendering your car undriveable.

Connect the cables to the vehicle operating. Allow it to run for two minutes. Attach the red clip to the positive terminal of the battery that is good (it will have "POS" or "+" on it). Attach the other end to a clean and unpainted metal surface under the hood of the damaged vehicle. The engine block is a great alternative. The black cable should not be connected to the negative terminal of the dead battery. This could create sparks, which could ignite the gasoline that is in the engine compartment.

After the cables have been connected, you should begin the car and allow it to run for around five minutes. Then disconnect them in reverse. The battery in your Saab 9-3 is recharged while you drive. It takes a while for it to fall back. It is recommended to purchase an additional key fob when you can. Replacing the only one that works requires the installation and programming of a brand new computer chip.

Replacement Case

Saab owners typically only have one car key, and if that is lost, they'll be charged. The reason for this is that it's not cheap to add 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 any other catastrophe, it is best to have a spare key. Even when the key is "new", it won't work.

The dealer will charge you top dollars if you only have one working key. However, we can reset and re-program the computer's EEPROM to accept the new key, without replacing the whole system. This could help you save money. It's also less expensive than waiting until you lose the only key.