saab spare key Key Programming
saab ignition key cars built since about 1994 feature an immobilizer mechanism that is based on codes for keys. To add an additional key, you need a new transponder, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool.
The issue is that this can be very costly. Always keep a spare set of keys on hand.
Transponder key
The transponder keys are keys equipped with an electronic chip. It transmits a signal to the car when it is inserted into the ignition. The car will check to see whether the signal matches with the one on the key. If the signals are in sync the car will then unlock and start. This is a great way to prevent car theft and keep your vehicle safe from thieves.
Transponder keys can be an increasingly popular feature for cars, but they're not as secure as traditional keys made of metal. While the metal portion of a conventional key can be cut and copied, a transponder is protected by an electronic chip. The chip has a unique code which is programmed into a car's computers in order to identify it.
When a Saab key fob is used the car recognizes it and allows it to turn on. However, it can only do this if the key fob is unmodified and has a chip that has been programmed to match. In the absence of that, the car will reject the key and not start.
It is essential to ensure that you have a spare key for your saab 93 key fob replacement. This is especially important if you live in a rural area, where there are a lot of car burglars. The good news is that you can find a replacement key to your Saab without having to go to an auto dealership and pay the expensive prices that they charge. In most cases, you can have an original key made on the spot at a fraction of the cost of what you would pay at dealerships.
Wired key
Saab cars are typically delivered with two keys. If you own only one, you should get an additional key as quickly as you can. This is because, if it's lost, the car will need an entirely new CIM and the locking cylinders replaced. This can be costly especially if you're buying a second-hand car.
The next step is connecting the wires for columns and row to your microcontroller. This is the toughest component of the project and it will require lots of soldering. It's not a standard way to do it, but you need to determine how to route and connect each column and row. There are 22 microcontroller wires and pins to connect for this keyboard. It includes 5 rows and 17 columns.
After the columns and rows are soldered, it's time to connect them to the key switches. To do this, you need to place a diode over each pin on the key switch and solder it. This will shield the pins that are used for key switches from current and also prevent them from being shorted. The diode allows current to only flow in only one direction. It is equipped with a visible indicator, a black band, that shows the direction in which the current will flow.
Sanabria says that a few of the tools that are sold in auto parts stores, like the Autel MaxiIM IM608PRO or IM508, can help shoppers or DIY users to program replacement keys and restore the immobilizer's data. The tools plug into OBD ports and help the customer through each step, making the process easier than replacing the vehicle's computer.
Jumpstarting the battery
A lot of people keep an assortment of tools in their trunks to start a vehicle in an emergency, but this might not be a good idea for newer cars. These vehicles have many digital and computer systems that communicate with each other. A voltage surge while a battery is hooked up to another can fry these components, rendering your vehicle undriveable.
Start the working vehicle and let it run for about two minutes before you connect the cables to the non-working one. Attach the red clip on the positive terminal of the good battery. (It will say "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 a good choice. Do not connect the black cable to the negative terminal of the dead battery, since it could spark an ignition source that ignites gasoline in the engine bay.
Once the cables are connected, start the disabled vehicle and let it run for about five minutes before you disconnect them in reverse order. The battery in your saab ignition key replacement 9-3 will be recharged while you drive. It will take some time for it to drop back down. You should purchase an additional key fob when you can. Replacing the one that works requires the installation and programming of a brand new computer chip.
Replacement case
Many saab 9-3 key fob replacement owners only have one key for their car and if they lose it, key, it will cost them. It's expensive to buy an additional key and it requires replacing the CIM or TWICE in the case of older models. It's best to have a backup key in the event of theft or other disaster and the best option is to purchase a second key as quickly as you can. However, don't purchase a secondhand key even it's "new." Claimed-new keys from aftermarket sellers will not work and are likely to fail in the crucial moment.
The dealer will charge you top dollar if you have only one working key. We can reset and reprogram the computer's EEEPROM in order to be able to accept a replacement key without the need to replace the entire system. This could help you save a significant amount of money. It's more affordable rather than wait until you lose your only key.