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Saab Key Programming

lost saab key cars built from 1994 have an immobilizer system based on a set of keys. The addition of a key requires 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. You should always keep a spare set of keys in your possession.

Transponder key

The transponder is a type of key that has an electronic chip. This chip sends a signal when the key is put into the ignition. The car is able to check whether the signal matches the one on the key. If the signals are identical it will open itself and begin. This is a great method to prevent auto theft and keep your vehicle safe from thieves.

Transponder keys are a common feature in vehicles, but you should be aware that they aren't as secure as classic metal keys. While the metal portion of a conventional key can be cut and copied but a transponder key is protected by an electronic chip. The chip contains a unique code that's 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 will only recognize the key fob if it is equipped with a chip that is unmodified and has been programmed to match. The car will not start if the key is not programmed to match.

It is crucial to have an extra saab key battery (click through the next article) key. This is particularly important when you live in a rural region where there are a lot of car burglars. You can obtain a replacement key for your Saab by visiting the dealership and not paying their expensive cost. You can have an original key made on the spot at a fraction of the cost you would pay at the dealership.

Wired key

saab 9 3 key replacement cars typically come with two keys when new. If you only have one, it's a good idea to get an extra key fob as soon as is possible since if you lose it, your car will require a new CIM unit, and the locking cylinders will have to be replaced. This can be costly especially if buying a second-hand car.

The next step is connecting the wires for columns and rows to your microcontroller. This is the most challenging part of the project and will require a great amount of soldering. There isn't a standard way to do this, but it's important to plan out the route you'll take and solder the rows and columns. There are 22 microcontroller wires as well as pins to connect to this keyboard. It includes 5 rows and 17 columns.

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

Sanabria says that some of the tools that are sold in auto parts stores, including the Autel MaxiIM IM608PRO and IM508 can assist customers shopping or DIY customers to program replacement keys and restore the immobilizer's data. The tools plug into OBD ports and guide the user through each step, making the process easier than replacing the car's computer.

Jump-starting the battery

A majority of people keep a set in their trunks to jump-start a car in case of emergency, however it might not be the best idea for vehicles that are newer. These cars have a variety of digital and electronic devices that communicate with each other. A voltage surge when batteries are connected to another can fry the components and render your vehicle unusable.

Start the vehicle that is working and let it run for about two minutes before you connect the cables to the battery that is not working. 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 unpainted metal surface beneath the hood of your disabled car. The engine block is an excellent choice. Do not connect the black cable to the negative terminal of the dead battery because this could trigger an ignition source that ignites gasoline in the engine bay.

After the cables have been connected, you can start the vehicle 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 will take a while for it to fall back. You should invest in another key fob as soon as possible. Replacing the original one that works requires the installation and programming of a brand new computer chip.

Replacement Case

Many saab keys replacement owners only have one key for their vehicle and if they lose that key, it will cost them. The reason for this is that it's not cheap to replace a key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. It's best to have a second key in case of theft or other disaster and the most effective way is to buy an extra key as quickly as you can. Don't buy a secondhand key, even if it's "new." Keys that are claimed as new from sellers selling aftermarket keys won't work and are almost guaranteed to fail in the crucial moment.

The dealer will charge you the highest dollar if you only have one working key. However, we can reset and re-program the computer's EEPROM in order to prepare it to accept the new key without having to replace the entire system. This could save you a lot of money. It's much cheaper than wait until you lose the sole key.