Saab Key Programming

Saab cars built since about 1994 feature an immobilizer mechanism built on coded keys. The addition of a key requires an entirely new transponder and programming. This is usually done by the dealer using a special Tech2 diagnostic tool.

This can be expensive. It is always advisable to keep a spare set of keys at hand.

Transponder key

The transponder is a piece of key with an electronic chip. The chip sends a signal when the key is placed into the ignition. The car is able to check whether the signal is the same as the one on the key. If the signals are identical it will open itself and start. This is a great method to deter auto theft and keep your vehicle secure from thieves.

Transponder keys are a popular feature in automobiles, however you should be aware they aren't as secure as classic keys made of metal. The metal portion of a traditional key is easily cut and copied, however a transponder has an electronic chip that guards it. The chip has a unique code programmed into the car's computer to identify it.

When a saab 93 replacement key key fob is used, the car recognizes it and allows it to turn on. However, it will only do this if your key fob has an unmodified chip that has been programmed to match it. In the absence of that, the car will reject the key and refuse to start.

It is essential to ensure that you have a spare key for your Saab. This is particularly 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 having to pay their high cost. In the majority of cases, you can have a new key made on-the-spot at a fraction of the cost you'd pay at a dealer.

Wired key

Saab cars usually come with two keys when they're new. If you have only one, it's recommended to purchase an additional key fob as quickly as you can since if you lose it, your car will require an entirely 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 row and columns wires to your microcontroller. This is the most challenging part of the project and will require a good deal of soldering. There isn't a standard way to accomplish this, however it is important to think about the way you'll route and solder the columns and rows. There are 22 microcontroller wires as well as pins to connect to this keyboard. It has five rows and 17 columns.

Once the rows and columns are soldered, it's time to connect them to the key switches. To do this, you need to place a diode across each pin of the key switch and solder it. This will shield the pins of the key switch from current and prevent them from being shorted. A diode allows current to only flow in one direction. It features a visual indicator with a black band that indicates which direction current will flow.

Sanabria states that a number of the tools available in auto parts stores, including the Autel MaxiIM IMM608PRO and IM508 are able to 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 process, making it more simple than replacing the computer in the vehicle.

Jump-starting the battery

A majority of people keep an assortment of tools in their trunks to jump-start a vehicle in the event of an emergency, but it might not be the best idea for newer cars. These vehicles have many digital and electronic devices that communicate with one another. A surge in voltage when the battery is connected to another battery could fry these components and render your vehicle unable to drive.

Start the working vehicle and allow it to run for approximately two minutes before connecting the cables to the disabled one. Attach the red clip to the positive terminal of the battery that is good. (It will say "POS" or "+".) Attach the other end to a clean unpainted metal surface under the hood of the affected vehicle. The engine block is a good alternative. Do not connect the black cable to the negative terminal of the dead battery, as it could spark an ignition source that ignites gasoline in the engine bay.

Once the cables are connected, turn on the vehicle you are not using and Saab 93 Replacement Key let it run for approximately five minutes before disconnecting the cables in reverse order. Be aware that the battery in your saab 93 key 9-3 is recharged while you drive, so it could take a while for the battery to come back to normal. You should consider purchasing another key fob as soon as possible. Replacing the only one that works requires the installation and programming of a new computer chip.

Replacement case

Saab owners typically only have one car key, and if it is lost, they'll be charged. It's expensive to add an additional key and it requires replacing the CIM or TWICE in the case of older models. In the event of theft, or any other catastrophe it is advisable to have a spare key. Don't buy a secondhand key, even the case that it's "new." Keys that are claimed as new from aftermarket sellers will not be effective and are almost guaranteed to fail at the crucial moment.

The dealer will charge the highest dollars if you only have one working key. We can reset and Saab 93 Replacement key reprogram the computer's EEEPROM to get it ready to accept a replacement key without having to replace the entire system. This could save you a lot of money. It's less expensive than waiting until you lose the only key.