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saab 9-3 key fob replacement Key Programming

Saab cars manufactured since 1994 come with an immobilizer system that is based on codes for keys. A new transponder is required in order to enable the inclusion of an additional key, and special programming. This is usually done by the dealer using a Tech2 diagnostic tool.

The issue is that this could be very costly. This is why you should always have a spare key available.

Transponder key

The transponder keys are keys equipped with an electronic chip. It sends a signal to the car when it is placed in the ignition. The car will then check the signal to see if it matches the one on the key. If the signals are in sync the car will then unlock and begin. This is an excellent way to protect your vehicle from theft.

Transponder keys are an increasingly popular feature in vehicles, but you should be aware they're not as secure as traditional keys made of metal. The metal component of the traditional key can be easily cut and copied, whereas the transponder is protected by an electronic chip that safeguards it. This chip contains an individual code that is encoded into the car's system to identify it.

The car will recognize the saab 900 key keyfob and permit 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. The car won't start if the key is not programmed to match.

It's essential to ensure that you have a spare key for your Saab. This is especially important for those who live in a rural location that has many car thieves. The good news is that it's possible to find a replacement key to your Saab without needing to visit an auto dealership and pay the high costs that they charge. In most instances, you can get a brand new key made right on the spot for less than half the cost of what you would pay at an auto dealer.

Wired key

saab ignition key cars usually come with two keys when they are new. If you only own one, you should purchase an extra key as soon as you can. This is because if it's lost and the car needs a new CIM and the locking cylinders replaced. This could be expensive especially if you're buying a used car.

The next step is to connect the wires of the column and row to the microcontroller. This is the most difficult aspect of the project and will require lots of soldering. There isn't a standard method to do it, however, you should think about how 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.

After the rows and column are soldered together It is now time to connect the key switches. Solder a diode to each key switch pin. This will shield the key switch pins from current and prevent them from being shorted. The diode allows current to only flow in one direction. It is equipped with a visible indicator of a black line that shows which way current will flow.

Some of the tools you can find at auto parts stores -- such as the Autel MaxiIM IM608 PRO and IM508 -- could assist customers at the shop or DIY users in some cases create replacement keys and restore lost immobilizer data, Sanabria says. The tools connect to OBD ports and guide the user 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 trunk to use in an emergency, but jumping a battery for newer vehicles might not be the best choice. These vehicles are equipped with many digital and computers that communicate with one another. A voltage spike when the battery is connected to another could cause damage to these components, rendering your vehicle undriveable.

Connect the cables to the vehicle that is working. Let it run for two minutes. Attach the red clip on the positive terminal of the battery that's good. (It will read "POS" or "+".) Attach the other end of the black cable to a clean, unpainted metal surface underneath the car's hood. The engine block would be a good choice. The black cable is not to be connected to the negative terminal of the dead battery. This could result in sparks, which would ignite the gasoline inside the engine compartment.

Once the cables are connected, you need to start the vehicle and allow it to run for around five minutes. Then disconnect them in reverse. The battery in your Saab 9-3 will recharge as you drive. It will take a while for it to recharge again. You should invest in another key fob as soon as you can. Replacing the original one that works requires the installation and programming of a brand new computer chip.

Replacement case

Many Saab owners have only one key for their car and if they lose it, key, it will cost them. It's expensive to purchase a key and requires replacing the CIM or TWICE for older models. It is recommended to have a second key in the event of theft or other disaster and the best option is to purchase an additional key as soon as you can. Even when the key is "new", it will not work.

Most locksmiths aren't able to help with a single working key and the dealer will charge top dollar to replace the computer in your vehicle to create a replacement. However, we can reset and re-program your computer's EEPROM to prepare it to accept the new key without having to replace the whole system. This could help you save a significant amount of money. It's also much less expensive than waiting until you lose the only key.